Mantech seeks a motivated and customer-focused Principal Cyber Security Engineer to join our team in Chantilly, VA. In this role, you will help design, implement, and sustain mission-driven cybersecurity solutions that enable secure enterprise operations. You will provide technical leadership and hands-on expertise in supporting Comply-to-Connect (C2C) systems across both classified and unclassified environments.Responsibilities include but are not limited to:·Engineering, designing, implementing, integrating, and sustaining Comply-to-Connect (C2C) deployment support to migrate, deploy, enhance, and maintain C2C services·Managing and maintaining C2C appliances, applications, servers, and supporting infrastructure in unclassified and classified environments·Coordinating with the network service provider to develop and maintain network architecture diagrams·Evaluating and recommending changes or technology upgrades to support performance improvements, standardization, and alignment with industry best practices·Monitoring and analyzing C2C performance and faults and proposing solutions for optimization·Collaborating with other team members and customers across multiple levels to gather, supply, or coordinate technical and operational information·Supporting Assessment and Authorization activities related to cybersecurity technologies, as applicableMinimum Qualifications:·Bachelor’s degree, or an additional 4+ years of cyber experience in lieu of a degree·7+ years of experience in cybersecurity·Hands-on experience with technologies supporting large-scale enterprise deployments or data centers·Experience deploying and/or supporting enterprise security software such as firewalls, intrusion prevention systems (IPS), antivirus solutions, application firewalls, high availability systems, network management tools, and virtualization platforms·Strong knowledge of Windows and Linux systems, operating system security practices, TCP/IP networking, 802.1x, and core network security principles·IAT Level II certification (GSEC, Security+, SSCP, or CCNA-Security), or ability to obtain within 6 months of hirePreferred Qualifications:·Experience implementing and supporting complex, multi-component software solutions·Familiarity with vendor-agnostic C2C capabilities, open-source cybersecurity tools, DoD integration practices, and sustainment procedures for delivering enterprise C2C expertise·Proficiency with Cisco Identity Services Engine (ISE)Clearance Requirements:·An active TS/SCI with Polygraph is required for this position.Physical Requirements:·Must be able to remain in a stationary position 50% of the time.·Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.·Frequently communicates with co-workers, management, and customers. Must be able to exchange accurate information in these situations.

Overview: SimVentions, consistently voted one of Virginia’s Best Places to Work, is seeking a Navy Weapons System Model Based Systems Engineer. This position is for an engineer to work as part of a team performing model based systems engineering and/or mission thread analysis. The focus of the MBSE task is modeling of the system, tying the design into the requirements, and helping establish a robust digital engineering environment. The mission thread task involves learning and modeling concepts so that decision makers can better understand capabilities, thus empowering them to make programmatic decisions involving the weapons system. Clearance: An Interim Secret Clearance is required for this position. Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information. US Citizenship is required to obtain a clearance. Requirements: A B.S. in a STEM discipline and an interim secret clearance are minimum criteria for consideration. Responsibilities: Work as part of a team to develop models of a tactical Navy weapons system, primarily using CameoActively participate in meetings, some of which will be classifiedFollow established work processes to incorporate updated modelsPerform research and analysis on complex issues (example: how to link requirements in DOORS to architectures in Cameo and how to get changes in Cameo back into DOORS)Conduct independent research on emerging tools, applications, and plug-ins for to support the expansion of our digital engineering solutionProvide well written and easily comprehensible instructions to peers on how to perform tasksEvaluate and provide inputs to kill chain analysis Preferred Skills and Experience: Proficient with Cameo or MagicDrawExperience with DOORS is advantageous but not requiredConcrete analytical skillsDemonstrated experience researching solutions to complex problems Compensation: Compensation at SimVentions is determined by a number of factors, including, but not limited to, the candidate’s experience, education, training, security clearance, work location, skills, knowledge, and competencies, as well as alignment with our corporate compensation plan and contract specific requirements.The projected annual compensation range for this position is $72,000 - $140,000 (USD) depending on experience and expertise level. This estimate reflects the standard salary range for this position and is just one component of the total compensation package that SimVentions offers. Benefits: At SimVentions, we’re committed to supporting the total well-being of our employees and their families. Our benefit offerings include comprehensive health and welfare plans to serve a variety of needs.We offer:Medical, dental, vision, and prescription drug coverageEmployee Stock Ownership Plan (ESOP)Competitive 401(k) programsRetirement and Financial CounselorsHealth Savings and Health Reimbursement AccountsFlexible Spending AccountsLife insurance, short- & long-term disabilityContinuing Education AssistancePaid Time Off, Paid Holidays, Paid Leave (e.g., Maternity, Paternity, Jury Duty, Bereavement, Military)Third Party Employee Assistance Program that offers emotional and lifestyle well-being services, to include free counselingSupplemental Benefit Program Why Work for SimVentions : SimVentions is about more than just being a place to work with other growth-orientated technically exceptional experts. It’s also a fun place to work. Our family-friendly atmosphere encourages our employee-owners to imagine, create, explore, discover, and do great things together.Support Our WarfightersSimVentions is a proud supporter of the U.S. military, and we take pride in our ability to provide relevant, game-changing solutions to our armed men and women around the world.Drive Customer SuccessWe deliver innovative products and solutions that go beyond the expected. This means you can expect to work with a team that will allow you to grow, have a voice, and make an impact.Get Involved in Giving BackWe believe a well-rounded company starts with well-rounded employees, which is why we offer diverse service opportunities for our team throughout the year.Build Innovative TechnologySimVentions takes pride in its innovative and cutting-edge technology, so you can be sure that whatever project you work on, you will be having a direct impact on our customer’s success.Work with Brilliant PeopleWe don’t just hire the smartest people; we seek experienced, creative individuals who are passionate about their work and thrive in our unique culture.Create Meaningful SolutionsWe are trusted partners with our customers and are provided challenging and meaningful requirements to help them solve.Employees who join SimVentions will enjoy additional perks like:Employee Ownership:Work with the best and help build YOUR company!Family focus:Work for a team that recognizes the importance of family time.Culture:Add to our culture of technical excellence and collaboration.Dress code:Business casual, we like to be comfortable while we work.Resources: Excellent facilities, tools, and training opportunities to grow in your field.Open communication:Work in an environment where your voice matters.Corporate Fellowship: Opportunities to participate in company sports teams and employee-led interest groups for personal and professional development.Employee Appreciation:Multiple corporate events throughout the year, including Holiday Events, Company Picnic, Imagineering Day, and more.Founding Partner of the FredNats Baseball team:Equitable distribution of tickets for every home game to be enjoyed by our employee-owners and their families from our private suite.Food:We have a lot of food around here!FTAC

ManTech seeks a motivated, career and customer-oriented Senior Cyber Security Engineer to join our team in Chantilly, VA. Responsibilities include but are not limited to:Maintain operations of identity and access management services including directory, access, identity, and privileged access management servicesMaintain infrastructure in cloud or virtualized environmentsPerform Linux based system upgrades and patchesEngineer and deployment of a privileged access management (PAM) solutionEngineer and deployment of a Multi Factor Authentication (MFA) solutionManage Continuous Monitoring (CONMON) activitiesMaintain Authority to Operate (ATO)Provide status reports in an Agile environmentPeriodically providing after-hour supportMinimum Qualifications:Bachelor’s degree in an information Technology field or 4+ years of additional IT experience in lieu of degree4+ years of Cyber experienceExperience working in LINUX environmentsKnowledge of LDAP directory and managing databasesAbility to create scripts to assist with automation effortsMust have or be willing to obtain IAT Level II certifications within 6 months of hirePreferred Qualifications:Experience with Ansible, and writing automation playbooksExperience with PKI principalsExperience working in an Agile environmentExperience working in a Dev/Ops environmentKnowledge of Identity and Access Management principalsClearance Requirements:Must have a current/active TS/SCI w/PolygraphPhysical Requirements:The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.

Overview: SimVentions is a 100% employee-owned business and has consistently been voted one of Virginia's Best Places to Work. We are looking for a DevSecOps Engineer to join our team! Ideal candidates will have prior experience in a continuous integration/continuous development (CI/CD) environment using containerization technologies (e.g. Red Hat Openshift, Kubernetes, Docker, etc.) and cloud environments (e.g. Amazon Web Services). This position requires full-time, onsite support at NSWC Dahlgren and could require occasional off-hours support (e.g. evenings). Travel: None Clearance: An ACTIVE Top Secret Clearance is required for this position. Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information. US Citizenship is required to obtain a clearance. Requirements: - At least 5 years' experience supporting code deployments to a cloud environment- Experience with containerization technologies (e.g. Kubernetes, Docker, etc.)- Must be proficient in Windows OS- Must have active Security+ certification Responsibilities: - Conduct daily system checks- Support code deployments to Amazon Elastic Kubernetes Service (EKS)- Perform CI/CD pipeline patching, upgrades, and vulnerability scans, including Security Content Automation Protocol (SCAP) scans- Capture new processes and develop Standard Operating Procedures (SOPs)- Manage GitLab groups- Implement Defense Information Systems Agency (DISA) Security Technical Implementation Guides (STIGs) Preferred Skills and Experience: - Experience working with Elasticsearch, Logstash, and Kubernetes (ELK) stacks- Advanced AWS certifications (e.g. DevOps Engineer Professional, Solutions Architect Professional)- Elasticsearch and Kibana certifications- Kubernetes Administrator certification- CompTIA CASP or CISSP certification Education: BS in STEM field preferred but not required Compensation: Compensation at SimVentions is determined by a number of factors, including, but not limited to, the candidate’s experience, education, training, security clearance, work location, skills, knowledge, and competencies, as well as alignment with our corporate compensation plan and contract specific requirements.The projected annual compensation range for this position is $92,620.00 - $155,190.00 (USD). This estimate reflects the standard salary range for this position and is just one component of the total compensation package that SimVentions offers. Benefits: At SimVentions, we’re committed to supporting the total well-being of our employees and their families. Our benefit offerings include comprehensive health and welfare plans to serve a variety of needs.We offer:Medical, dental, vision, and prescription drug coverageEmployee Stock Ownership Plan (ESOP)Competitive 401(k) programsRetirement and Financial CounselorsHealth Savings and Health Reimbursement AccountsFlexible Spending AccountsLife insurance, short- & long-term disabilityContinuing Education AssistancePaid Time Off, Paid Holidays, Paid Leave (e.g., Maternity, Paternity, Jury Duty, Bereavement, Military)Third Party Employee Assistance Program that offers emotional and lifestyle well-being services, to include free counselingSupplemental Benefit Program Why Work for SimVentions : SimVentions is about more than just being a place to work with other growth-orientated technically exceptional experts. It’s also a fun place to work. Our family-friendly atmosphere encourages our employee-owners to imagine, create, explore, discover, and do great things together.Support Our WarfightersSimVentions is a proud supporter of the U.S. military, and we take pride in our ability to provide relevant, game-changing solutions to our armed men and women around the world.Drive Customer SuccessWe deliver innovative products and solutions that go beyond the expected. This means you can expect to work with a team that will allow you to grow, have a voice, and make an impact.Get Involved in Giving BackWe believe a well-rounded company starts with well-rounded employees, which is why we offer diverse service opportunities for our team throughout the year.Build Innovative TechnologySimVentions takes pride in its innovative and cutting-edge technology, so you can be sure that whatever project you work on, you will be having a direct impact on our customer’s success.Work with Brilliant PeopleWe don’t just hire the smartest people; we seek experienced, creative individuals who are passionate about their work and thrive in our unique culture.Create Meaningful SolutionsWe are trusted partners with our customers and are provided challenging and meaningful requirements to help them solve.Employees who join SimVentions will enjoy additional perks like:Employee Ownership:Work with the best and help build YOUR company!Family focus:Work for a team that recognizes the importance of family time.Culture:Add to our culture of technical excellence and collaboration.Dress code:Business casual, we like to be comfortable while we work.Resources: Excellent facilities, tools, and training opportunities to grow in your field.Open communication:Work in an environment where your voice matters.Corporate Fellowship: Opportunities to participate in company sports teams and employee-led interest groups for personal and professional development.Employee Appreciation:Multiple corporate events throughout the year, including Holiday Events, Company Picnic, Imagineering Day, and more.Founding Partner of the FredNats Baseball team:Equitable distribution of tickets for every home game to be enjoyed by our employee-owners and their families from our private suite.Food:We have a lot of food around here!MWAC -

Overview: We are seeking a highly skilled and detail-oriented Electrical Engineer to join our engineering team. This role is focused on the design and development of rugged, high-performance electronics used in mission-critical defense applications with a strong emphasis on PCB layout and design. Experience or interest in RF circuit and antenna design is a significant plus.The ideal candidate will bring a deep understanding of electronics design, with the ability to contribute across the full product development lifecyclefrom concept and prototyping through production and sustainment. Clearance: An ACTIVE Secret Clearance is required for this position. Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information. US Citizenship is required to obtain a clearance. Requirements: 3+ years of experience in microelectronics design and development, with a strong emphasis on PCB layout and design.Proficiency in tools such as Altium Designer, Eagle, OrCAD, or similar.Solid foundation in analog/digital circuit theory and practical design.Familiarity with lab testing tools (oscilloscopes, spectrum analyzers, VNAs, etc.).Understanding of DFM/DFT/DFA best practices in a defense context.Strong organizational and communication skills, with an attention to detail. Responsibilities: Design, analyze, and validate analog, digital, and RF circuitry for embedded systems.Lead PCB layout and design for high-reliability, multi-layer boards, ensuring compliance with military standards (MIL-STD) and IPC class specifications.Integrate a wide range of sensors (IMUs, GPS, environmental, etc.) and communication modules (LTE, UHF, SATCOM, etc.) into embedded and modular systems.Develop and integrate RF front-ends and antennas for secure communications and sensor applications.Perform schematic capture, BOM generation, layout, and detailed documentation for design reviews and production.Collaborate closely with firmware, mechanical, systems, and test engineers to deliver ruggedized and SWaP-optimized solutions.Conduct signal integrity analysis, power distribution verification, and electromagnetic compatibility (EMC) assessments.Support environmental and compliance testing including EMI/EMC, shock, vibration, and thermal.Maintain design documentation and contribute to configuration management and version control. Preferred Skills and Experience: Experience with RF circuit design, including filters, LNAs, mixers, and impedance-matched networks.Knowledge of antenna design and integration for applications including GNSS, SATCOM, cellular, telemetry, etc.Experience designing low power and ultra low power embedded devicesHands-on experience with RF simulation tools such as CST, HFSS, or Keysight ADS.Familiarity with military standards (MIL-STD) related to microelectronicsBackground in embedded systems, microcontrollers, and interface protocols (SPI, I2C, UART, Ethernet).Experience in end-to-end lifecycle development for defense platforms. Education: Bachelor’s degree in Electrical Engineering or a related field (Master’s preferred) Compensation: Compensation at SimVentions is determined by a number of factors, including, but not limited to, the candidate’s experience, education, training, security clearance, work location, skills, knowledge, and competencies, as well as alignment with our corporate compensation plan and contract specific requirements.The projected annual compensation range for this position is $85K - $155K(USD). This estimate reflects the standard salary range for this position and is just one component of the total compensation package that SimVentions offers. Benefits: At SimVentions, we’re committed to supporting the total well-being of our employees and their families. Our benefit offerings include comprehensive health and welfare plans to serve a variety of needs.We offer:Medical, dental, vision, and prescription drug coverageEmployee Stock Ownership Plan (ESOP)Competitive 401(k) programsRetirement and Financial CounselorsHealth Savings and Health Reimbursement AccountsFlexible Spending AccountsLife insurance, short- & long-term disabilityContinuing Education AssistancePaid Time Off, Paid Holidays, Paid Leave (e.g., Maternity, Paternity, Jury Duty, Bereavement, Military)Third Party Employee Assistance Program that offers emotional and lifestyle well-being services, to include free counselingSupplemental Benefit Program Why Work for SimVentions : SimVentions is about more than just being a place to work with other growth-orientated technically exceptional experts. It’s also a fun place to work. Our family-friendly atmosphere encourages our employee-owners to imagine, create, explore, discover, and do great things together.Support Our WarfightersSimVentions is a proud supporter of the U.S. military, and we take pride in our ability to provide relevant, game-changing solutions to our armed men and women around the world.Drive Customer SuccessWe deliver innovative products and solutions that go beyond the expected. This means you can expect to work with a team that will allow you to grow, have a voice, and make an impact.Get Involved in Giving BackWe believe a well-rounded company starts with well-rounded employees, which is why we offer diverse service opportunities for our team throughout the year.Build Innovative TechnologySimVentions takes pride in its innovative and cutting-edge technology, so you can be sure that whatever project you work on, you will be having a direct impact on our customer’s success.Work with Brilliant PeopleWe don’t just hire the smartest people; we seek experienced, creative individuals who are passionate about their work and thrive in our unique culture.Create Meaningful SolutionsWe are trusted partners with our customers and are provided challenging and meaningful requirements to help them solve.Employees who join SimVentions will enjoy additional perks like:Employee Ownership:Work with the best and help build YOUR company!Family focus:Work for a team that recognizes the importance of family time.Culture:Add to our culture of technical excellence and collaboration.Dress code:Business casual, we like to be comfortable while we work.Resources: Excellent facilities, tools, and training opportunities to grow in your field.Open communication:Work in an environment where your voice matters.Corporate Fellowship: Opportunities to participate in company sports teams and employee-led interest groups for personal and professional development.Employee Appreciation:Multiple corporate events throughout the year, including Holiday Events, Company Picnic, Imagineering Day, and more.Founding Partner of the FredNats Baseball team:Equitable distribution of tickets for every home game to be enjoyed by our employee-owners and their families from our private suite.Food:We have a lot of food around here!FTAC

Mantech seeks a highly technicaland mission focused Cyber Systems Engineer to join our team inHerndon, VA.This position can also be based in McLean, VA with weekly travel the Herndon, VA per customer requirements.This role is critical in enhancing our cyber defense capabilities through building and maintaining a cyber test range for the customer. Join an elite team of experts helping to defend critical national security assets.Responsibilities include, but are not limited to:Design, implement, and manage secure, scalable systems across Windows, Linux, and cloud environments.Manage system configurations, patches, and updates in Windows, Linux, or hybrid environments.Develop and maintain scripts and automation tools using Python or similar programming languagesOversee virtual infrastructure (VMware, Hyper-V or similar) and deploy systems in AWS or Azure.Implement and manage automation workflows using SOAR platforms. Develop automated incident response playbooks to streamline CSOC processes.Enhance the effectiveness ofEndpoint Detection and Response (EDR)solutions,Digital Forensicsplatforms, andSecurity Information and Event Management (SIEM)systems (Splunk, Elk or similar)Minimum Qualifications:High School Diploma and 11+ years of experience as a Cyber Engineer, Systems Engineer or similar role within a cybersecurity environment or Bachelor’s degree in a technical field and 7+ years of experienceExperience with Python, Javascript, Ruby, Perl or similar programming languages8+ years of experience with Operating Systems, Network Infrastructure, Security Principles, and System ArchitecturePreferred Qualifications:Relevant certifications such as CISSP, GIAC, CEH or similarExperience with automation and SOAR platformsStrong analytical, problem-solving, and communication skillsClearance Requirements:Must have a current/active TS/SCI w/Polygraph clearancePhysical Requirements:The person in this position must be able to remain in a stationary position 50% of the time.

ManTech seeks a motivated, career and customer-oriented Cloud Support Engineer Nights to join our team in Tysons, VA The Cloud Support Engineer will be part of a global team that provides 24x7 support to help customers seamlessly operate their on-premises Cloud infrastructure.When customers cannot resolve issues themselves, the Cloud Support Engineer will ensure that we have the necessary tools and processes to resolve the issue. You will troubleshoot technical problems for customers with a mix of debugging, networking, system administration, updating documentation, and when needed, coding/scripting.Responsibilities include but are not limited to:Manage the customer’s problem through effective diagnosis, resolution, or implementation of new investigation tools to increase productivity for customer issues on the Cloud Platform products.Develop an in-depth understanding of the product technology and underlying architectures by troubleshooting, reproducing, determining the root cause for customer reported issues, and building tools for faster diagnosis.Act as a consultant and subject matter expert for internal stakeholders in engineering, sales, and customer organizations to resolve technical deployment obstacles and improve the Cloud.Work as part of a team of engineers/consultants that globally ensures 24 hour customer supportThis role will be a night shift (10pm-6am) position. Rotating weekends are required. Shift schedules are subject to change based on business needs.Minimum Qualifications:Bachelor’s degree in computer science or related field; 4 years of relevant professional experience may be substituted for a degree.In lieu of education/experience, each of the following certifications may be substituted as follows:AWS Cloud Practitioner or Azure Fundamentals (AZ-900) can substitute 0.5 years’ experienceCompTIA Security+, ITIL Foundation, CompTIA Network+, or CompTIA A+ can substitute 1 year of experience.AWS Solutions Architect Associate, Azure Administrator, Google Cloud Engineer, Cisco CCNA, CompTIA Linux+ Professional, Azure Solutions Architect (AZ-305), Google Professional Cloud Architect, or Certified Information Systems Security Professional (CISSP) can substitute 2 years’ experienceExperience reading or debugging code using Java, C, C++, .NET, Python, Shell, Perl, and/or JavaScript.Experience with Networking, Cloud technologies and of Systems: UNIX/Linux or Windows to include experience configuring and troubleshooting infrastructure.Working knowledge of any customer service ticketing system and Google Workspace Tools (Doc, sheets and Slides)Ability to read runbooks & playbooks to provide meaningful summaries to CustomersPreferred Qualifications:Google Cloud experienceServiceNow experienceExperience with any of the following IaaS solutions: system virtualization, on-premise and/or hybrid cloud computing, cloud identity and security system, cloud monitoring and logging and/or local and cloud storage.Experience with any of the following cloud storage solutions: SQL database administration, Google App Engine, open source software communities, cloud networking solutions and/or distributed computing technology.Understand networking fundamentals (TCP/IP, Routing, VPNs, VLANs, Peering, Load Balancing, etc.)Knowledge of basic web technologies (HTTP, HTML, DNS, etc.)Excellent customer service and communication skills (verbal and written)Clearance Requirements:An active TS/SCI with PolygraphPhysical Requirements:Must be able to remain in a stationary position 50%Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.Frequently communicates with co-workers, management, and customers, which may involve delivering presentations

ManTech seeks a motivated, career and customer-orientedTelephony Engineer to join our team inMcLean, VA. In this role, you will apply your expertise in various telecommunications and IT domains, including Linux, Korn shell scripting, PowerBuilder, BESS billing, and Telephony Provisioning Tools. Your responsibilities will include designing, developing, and maintaining voice media gateways that integrate seamlessly with telephony infrastructure.Responsibilities include, but are not limited to:Install, maintain, and analyze software, hardware, and transmission systems for voice communications.Ensure proper installation and support procedures for remote hardware and communication facilities.Collaborate with customers and vendors to define voice communication system requirements.Integrate telephony systems (VoIP, analog, ISDN) with voice media gateways and service modules.Manage and configure Linux servers (Ubuntu, CentOS) for hosting applications, ensuring performance, security, and stability.Utilize BESS Billing and Telephony Provisioning Tools to support telephony systems.Develop, test, and troubleshoot applications on Linux-based servers, including PowerBuilder and Korn shell scripts, while optimizing system performance.Minimum Qualifications: BA/BS and 9+ years of experience, or a combination of education and work experience equivalent to 13+ years.Strong experience with telephony systems (VoIP, analog, ISDN) and voice media gateway integration.Proficiency in Linux server management (Ubuntu, CentOS) and scripting languages (Korn shell, PowerBuilder).Experience with BESS Billing and Telephony Provisioning Tools.Excellent troubleshooting, problem-solving, and analytical skills with the ability to work independently.Preferred Qualifications:Experience integrating telephony systems with web applications (e.g., handling inbound/outbound calls, IVR, call routing).Knowledge of security best practices for telephony, server administration, and web applications.Knowledge and hands on experience with telephony systems and Linux server management, including installation, configuration, troubleshooting, and performance optimization.Qualified in Oracle Database Administrator.Experience provisioning telephony services.Clearance Requirements:Must have a current/active TS/SCI with Polygraph.Physical Requirements:Must be able to remain in a stationary position at least 50% of the time. Constantly operate a computer, phone, and other office equipment for extended periods of time.

ManTech seeks a motivated, career and customer-oriented Data Engineer to join our Data and AI Practice onsite in Chantilly and/or Herndon, VA. You will be a part of a dynamic, cross-functional team focused on transforming how Government clients extract insights from data to achieve critical mission objectives. You will be providing support in the analysis, design, implementation, and optimization of complex, enterprise-wide, cloud-based data migration solutions that align with mission goals and requirements.Responsibilities include but are not limited to:Design and implement robust data pipelines to ingest, transform, and integrate data from various systems and networks, ensuring seamless data flow.Collaborate with cloud and system architects to establish secure and efficient data transfer protocols among different networks and systems.Work with data consumers to develop data requirements to support analytics and machine learning tasks.Implement data pipelines and data storage solutions to support analytic workflows.Optimize data pipelines and storage solutions for performance, ensuring low latency and high throughput for real-time and batch data processing.Implement robust security measures to protect sensitive data and ensure compliance with relevant data security policies and practices.Minimum Qualifications:Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related field and at least 7 years of experience in data engineering, data architecture, or related roles. Additional equivalent experience may be considered in lieu of degreeExperience with cloud services from providers such as Oracle and their data storage and database servicesExperience with data replication and change data capture tools such as Oracle GoldenGateExperience with data warehousing, data lakes, and big data technologiesProficiency in programming languages such as Python, Java, or SQLExperience with SQL and NoSQL databasesPreferred Qualifications:Master’s degree in Computer Science, Information Technology, Engineering, or a related field.Familiarity with data security and compliance frameworks (e.g., NIST framework).Cloud certifications such as AWS Certified Developer, Oracle Cloud Infrastructure.Familiarity with records management policies and procedure. Familiarity with big data technologies like Hadoop, Spark, and Kafka.Knowledge of data governance and metadata management.Clearance Requirements:Must possess a current and active TS/SCI with polygraphPhysical Requirements:Must be able to be in a stationary position more than 50% of the timeMust be able to communicate, converse, and exchange information with peers and senior personnelConstantly operates a computer and other office productivity machinery, such as a computerThe person in this position frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situationsThe person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

ManTech seeks a motivated, career and customer-oriented LeadData Engineer to join our Data and AI Practice onsite in Chantilly and/or Herndon, VA. You will be a part of a dynamic, cross-functional team focused on transforming how Government clients extract insights from data to achieve critical mission objectives.This leadership role involves guiding a team and collaborating with others to implement this transformative process. You will be responsible for providing expert guidance and support in the analysis, design, implementation, and optimization of complex, enterprise-wide, cloud-based data migration solutions that align with mission goals and requirements.Responsibilities include but are not limited to:Lead the design, development, and deployment of robust data pipelines to ingest, transform, and integrate data from various systems and networks, ensuring seamless data flow.Collaborate with cloud and system architects to establish secure and efficient data transfer protocols among different networks and systems.Work with data consumers to develop data requirements to support analytics and machine learning tasks.Implement data pipelines and data storage solutions to support analytic workflows.Optimize data pipelines and storage solutions for performance, ensuring low latency and high throughput for real-time and batch data processing.Implement robust security measures to protect sensitive data and ensure compliance with relevant data security policies and practices.Minimum Qualifications:Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related field and at least 10 years of experience in data engineering, data architecture, or related rolesExperience with data replication and change data capture tools such as Oracle GoldenGateExperience with cloud services from providers such as Oracle and their data storage and database servicesDemonstrated ability to lead and manage a team of engineersDirect line management experience, including project, people, customer, and financial managementExperience with data warehousing, data lakes, and big data technologiesProficiency in programming languages such as Python, Java, or SQL. Experience with SQL and NoSQL databasesPreferred Qualifications:Master’s degree in Computer Science, Information Technology, Engineering, or a related field.Familiarity with data security and compliance frameworks (e.g., NIST framework).Cloud certifications such as AWS Certified Developer, Oracle Cloud Infrastructure.Familiarity with records management policies and procedure.Familiarity with big data technologies like Hadoop, Spark, and Kafka.Knowledge of data governance and metadata management.Clearance Requirements:Must possess a current and active TS/SCI with polygraphPhysical Requirements:Must be able to be in a stationary position more than 50% of the timeMust be able to communicate, converse, and exchange information with peers and senior personnelConstantly operates a computer and other office productivity machinery, such as a computerThe person in this position frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situationsThe person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

ManTech seeks a motivated, career and customer-oriented Oracle Cloud Engineer to join our team in Herndon, Virginia. The Oracle Cloud Engineer will be tasked to design, implement, and maintain cloud-based solutions on Oracle Cloud Infrastructure (OCI) supporting a high priority mission at one of our National Intelligence Customers. In this role, you will work closely with architects, DevOps, and database teams to optimize Oracle cloud environments, ensure security and scalability, and support mission-critical applications.Responsibilities include but are not limited to:Design & Deploy: Architect and deploy scalable and secure solutions onOracle Cloud Infrastructure (OCI).Automation & Optimization: ImplementIaC (Infrastructure as Code)using Terraform, Ansible, or OCI Resource Manager to automate cloud provisioning.Database & Storage Management: Manage Oracle Cloud databases (Autonomous DB, Exadata, Oracle RAC) and storage solutions (Object Storage, Block Volumes).Networking & Security: ConfigureVCNs, subnets, load balancers, and security listsfor cloud applications.Monitoring & Performance Tuning: Use OCIMonitoring, Logging, and Performance Hubto optimize cloud resources and troubleshoot performance bottlenecks.Disaster Recovery & High Availability: Designbackup, replication, and failoverstrategies for critical workloads.Cloud Cost Optimization: Monitor resource utilization and implementcost-saving strategiesto optimize OCI spending.Compliance & Security: Ensure compliance with industry security standards (NIST 800-53) and implement best practices forIAM policies and access controls.Minimum Qualifications:7+ yearsof hands-on experience with a Cloud Service Provider (CSP) orOracle Cloud Infrastructure (OCI).Proficiency in deploying and managing OracleAutonomous Database, Oracle Exadata, and Oracle Cloud VM instances.Expertise inTerraform, Ansible, or OCI Resource Managerfor infrastructure automation.Strong understanding ofnetworking concepts (VCNs, Load Balancers, VPN, FastConnect).Experience withOracle Identity and Access Management (IAM)and security policies.Hands-on experience withLinux environments, scripting (Bash, Python), and CI/CD pipelines.Knowledge ofCloud monitoring toolssuch as Oracle Cloud Monitoring, Prometheus, or Grafana.Preferred Qualifications:Hands-on experience working with and developing on OCI, particularly 2 years of consulting experience preferred.Oracle Cloud certifications(e.g., Oracle Cloud Infrastructure Architect Associate/Professional).Experience withmulti-Cloud environments (AWS, Azure, GCP, OCI) and hybrid cloud solutions.Background inDevOps, Kubernetes, or containerized deployments on OCI or another cloud provider.Strong knowledge ofOracle Database Administration (DBA)and SQL performance tuning.Clearance Requirements:Must have active TS/SCI with Full Scope PolygraphPhysical Requirements:Must be able to remain in a stationary position 50% of the time.Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

ManTech seeks a motivated, career and customer-oriented Security Engineer to join our team in Herndon, VA. We are searching for a highly skilled Security Engineer to design, implement, and maintain secure environments that align with compliance standards in support of a high priority mission at one of our National Intelligence Customers.This role requires an individual with a strong technical foundation in cybersecurity, a deep understanding of federal security frameworks, and a proactive approach to protecting mission-critical systems.Responsibilities include but are not limited to:Implement and maintain cybersecurity solutions across classified and unclassified environmentsPerform risk assessments, vulnerability scans, and system hardening in compliance with NIST 800-53 and RMFSupport the preparation and submission of security documentation for Authority to Develop (ATD) and Authority to Operate (ATO) under IC guidelinesCollaborate with system owners, ISSOs, ISSEs, ISSMs, engineers, and auditors during security assessments and continuous monitoringMonitor and respond to security incidents, performing root cause analysis and remediationIntegrate security controls into DevSecOps pipelines and cloud architectures (AWS, Azure, GCP, or Oracle)Support development and implementation of security policies, plans, and SOPsStay current on evolving federal cybersecurity directives, threats, and compliance requirementsMinimum Qualifications:Bachelor’s degree in Cybersecurity, Computer Science, Information Systems OR 4+ years of additional equivalent experience in a related field7+ years of experience in cybersecurity or related IT security rolesExperience with NIST Risk Management Framework (RMF), FedRAMP, or DoD Cybersecurity Maturity Model Certification (CMMC)Hands-on experience working in air-gapped Cloud environmentsKnowledge of system/network security principles and incident response practicesExperience supporting the Intelligence CommunityPreferred Qualifications:DoD 8570.01-M IAT Level II or III certification (e.g., Security+, CISSP, CEH, CISM)Knowledge of STIGs, SCAP tools, and secure system baseliningHands-on experience with security tools (e.g., ACAS, Splunk, Tenable, Palo Alto, CrowdStrike, or similar)Scripting or automation experience (Python, Bash, PowerShell) to support security operationsClearance Requirements:Must have active TS/SCI with Full Scope PolygraphPhysical Requirements:Must be able to remain in a stationary position 50% of the timeNeeds to occasionally move about inside the office to access file cabinets, officemachinery, etc.Frequently communicates with co-workers, management, and customers, which mayinvolve delivering presentations. Must be able to exchange accurate information inthese situations.

ManTech is seeking a motivated, career and customer-oriented Enterprise Systems Engineer to join our team in McLean, VA.Responsibilities include but are not limited to:Develop complex, enterprise solutions across the appropriate engineering environments to meet business and mission requirements or enhance performancePlan, conduct, and oversee the technical aspects of large, complex projects; coordinate the efforts of technical support staff in the performance of assigned projectsPerform full-stack software engineering development using Agile methodologiesDevelop and execute business process analysis, reengineering and digital transformation that adapt to user needs and requirements and meet business goalsOversee the day-to-day operation of Tier 1 - 3 support as needed (troubleshooting, problem resolution support, and Root Cause Analysis (RCA)Develop and apply advanced methods, theories and research techniques in the investigation and solution of highly complex system requirements and problemsProvide complex technical consultation on current and proposed systems to other organizations and clientsEnhance web-based applications to maximize User Experience (UX) and accessibility standardsBasic Qualifications:Bachelor’s Degree in a technical field (Science, Technology, Engineering, and Mathematics (STEM))7+ years serving as an Engineering Lead or similar work leading high performing teamsExperience in maintaining compliance with Natural Industrial Security Program Operating Manual (NISPOM) requirements and Intelligence Community Directives (ICDs)Familiarity with virtualizing servers, storage, networks, desktop and applications to improve efficiency, security and scalabilityFamiliarity with access control models and network securitySolid understanding of server operating systems (Linux, Windows)In-depth understanding of communication protocols and routing protocolsPreferred Qualifications:Advanced degrees and certifications are desired (e.g. - MCSE, CCNP, or CISSP)Experience supporting configuration management in a multi-region environmentExperience building PaaS or internal cloudAdvanced experience in systems integration, the ability to write integration code for ServiceNowClearance Requirements:Must have a current/active TS/SCI w/ polygraph.Physical Requirements:The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.

ManTech seeks a motivated, career and customer-oriented Senior Network Engineer to join our team in Chantilly, VA. This is a position requiring onsite work at customer locations within the local area (up to 10% travel).Responsibilities include but are not limited to:Designing and integrating comprehensive network, VoIP, VTC, and data center solutions, adhering to security guidelines and customer specifications to ensure robust and secure communication infrastructures.Managing the end-to-end integration of black and red networks, overseeing design, installation, maintenance, and coordination of a growing network with multiple external services to support operational needs.Diagnosing and resolving complex issues related to customer sites, telecommunications circuits, routing, switching, VoIP, VTC, network encryption devices, and Cisco data center/security to maintain network stability and performance.Developing and maintaining detailed documentation, diagrams, and standard operating procedures to facilitate knowledge sharing and efficient network management.Providing expert guidance, training, and support to network administrators, service desk personnel, and junior engineers to enhance team capabilities and operational effectiveness.Minimum Qualifications:Bachelor’s degree in Computer Science, Network Engineering, or equivalent field, demonstrating a strong academic foundation in related disciplines.8+ years of extensive experience in networking, including VoIP, VTC, data circuits, network encryption devices (e.g., General Dynamics TACLANE), and virtualization technologies.Proficiency in dynamic routing protocols such as OSPF and BGP, with a deep understanding of MPLS and DMVPN Hub and Spoke technology for efficient network routing.DoD 8140 IAT Level II certification: Security+CE and Computing Environment (CE) certification in Cisco technology (CCNA Voice) required.Valid US Driver's License with the ability to travel up to 10% locally to customer sites.Preferred Qualifications:Cisco Collaboration, Data Center, or Security certifications, indicating advanced expertise and specialized knowledge in relevant Cisco technologies.Clearance Requirements:Must have a current/active TS/SCI with the ability to obtain a CI polygraph.Physical Requirements:The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations

MANTECH seeks a motivated and enthusiastic Systems Test Engineer to support our current Marine Corps Warfighting Laboratory (MCWL) contract out of Quantico, VA. Responsibilities include but are not limited to:Prepare and/or lead Systems Engineering Technical Reviews (SETRs) such as Preliminary Design Reviews (PDRs), Critical Design Reviews (CDRs), and Test Readiness Reviews (TRRs).Generate technical documentation and artifacts such as System Engineering Plans, Configuration Management Plans, and Interface Control Documents.Provide Courses of Action and trade-off analysis to inform design decisions considering cost, schedule, and performance.Participate in Configuration Control Boards (CCBs) and evaluate engineering artifacts throughout the acquisition life cycle.Provide configuration management support for the development, engineering, testing, integration, fielding, and sustainment of weapon systems.Establish and maintain the hardware and software configuration baseline, which is a set of approved and controlled versions of project or system components serving as the reference point for further development, testing, and deployment.Support CCB activities and the Engineering Change Proposal (ECP) process.Travel up to 50 percent of the timeMinimum QualificationsBachelor’s degree and at least 5 years of related systems engineering or configuration management experience (additional 2 years of experience may be substituted in lieu of degree).Experience in using Configuration Management softwareExperience with systems integration and testing to verify required performance.Experience with navigating and applying DoDI 5000.80 (DoD System Acquisition Life Cycle)Preferred Qualifications:Experience using CMPro software.Experience supporting USMC ProgramsClearance Requirement: Must have an Active DoD TS/ SCIPhysical Requirements:Must be able to remain in a stationary position 50%

ManTech seeks a motivated, career and customer-oriented Network Engineer Architect to join our team in Stafford Virginia.This position will assist Marine Corps Warfighting Laboratory (MCWL) and Deputy Commandant Information ICD 705 Task Force (TF) leadership plan, design, install, and maintain networks across multiple security domains for ICD 705 Sensitive Compartmentalized Information Facilities (SCIFs) and Special Access Program Facilities (SAPFs).Responsibilities include but are not limited to:In direct support of MCWL Program and Task Force Staff, work closely across multiple locations and with local Site Security Manager (SSM)/Special Security Representative (SSR) and Information Systems Security Managers (ISSMs) to plan and oversee the installations and operations of systems across multiple security domains and in accordance with policies, directives, and best practices.Design/Architect supporting collateral, SCI, and SAP networks - both “inside plant” and “outside plant.”Understand multiple networks across several security domains and bring them into a working environment.Work across IT core areas - Network Design; Network Engineering; Computer System Engineering; Computer System Services; Data Management Services; Modeling, Analysis and Simulation; Professional Support Services; Test, Analysis and Evaluation; and Systems Integration.Advises Program leadership and assist on-site ISSOs to establish and satisfies complex system-wide information security requirements based upon the analysis of user, policy, regulatory, and resource demands.Support receiving Marine Corps units in the development and implementation of network/IA doctrine and policies.Minimum Qualifications:Bachelor’s degree and at least 10+ years’ experience operating within or constructing ICD 705 facilities.DoD 8570 IAT II (Security +).Ability to draft network diagrams and IT rack elevations.Ability to perform 10% international travel (e.g., Japan)Experience with MS Word, MS Excel.Preferred Qualifications:Master’s degree in information systemsExperience with ICD 705 SCIF/SAPF systems and network requirementsClearance Requirements:Must hold a current active TS/SCI clearancePhysical Requirements:Work both inside in office environment as well as on-location at sites under construction. Walk (with personal protective equipment) to observe and lead network infrastructure installation and activation. Environment will transition to a structure under construction and then an environmentally controlled facility.

MANTECH seeks a motivated, career and customer-oriented Software Engineer to join our team onsite in Alexandria, VA. As part of the position, you will act as a Software Engineer designing and implementing services and components for AI applications.Responsibilities include but are not limited to:Develops, implements, and maintains full-stack software solutions for AI-enabled applications.Works closely with the Software Architect to understand project requirements and translate them into technical specifications.Develops and integrates AI and ML capabilities on a cloud-hosted data platform that supports significant market adoption, high performance, and strict access control and governance.Designs and builds prototype and proof of concept User Interfaces using modern UX/UI standards.Stays current with advancements in AI, machine learning, and software engineering, incorporating best practices into the development process.Performs system optimization, performance tuning and assists in capacity planning.Performs proactive analysis of potential issues, risks and roadblocks during system implementation and operations.Documents software designs, code, and processes to ensure maintainability, scalability, and knowledge sharing among team members.Participates in code reviews and provides constructive feedback to peers to ensure code quality, adherence to coding standards, and knowledge transfer within the team.Minimum Qualifications:Bachelor's degree in Computer Science, Information Technology, or a related field.10 or more years (7 with Master’s) of experience in software development, systems integration, data management, or related fields.Experience with configuring and developing in a major public cloud system such as Oracle, Azure, AWS, or GCP.Experience in programming and/or scripting languages such as JavaScript, Python, C++, or Java.Experience with software development frameworks and tools (e.g., TensorFlow, PyTorch, Flask, Docker).Strong understanding of software engineering principles, including design patterns, data structures, and algorithms.Experience with DevOps tools and techniques for building integrations with external systems including Infrastructure as Code (IaC). Example tools include Jenkins, GitLab, Ansible, Terraform, AWS Cloud Formation TemplatesPreferred Qualifications:Master's degree in Computer Science, Information Technology, or a related field.Strong analytical and problem-solving skills.Excellent communication and interpersonal skills.Experience working with data ingest and transformation.Ability to work effectively in a team-oriented environment.Clearance Requirements:Must possess a current and active TS/SCIPhysical Requirements:The person in this position must be able to remain in a stationary position 50% of the time.Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.

MANTECH seeks a motivated, career and customer-oriented Mid-Level DevOps Engineer to join our team onsite in Alexandria, VA.Responsibilities include but are not limited to:Develop and manage infrastructure as code (IaC) using Terraform, Ansible, and/or AWS Cloud Formation Templates.Provision and configure cloud service provider (CSP) systems including Google Cloud Provider (GCP), Microsoft Azure, and Amazon Web Services (AWS) to ensure reliable and scalable solutions.Deploy and configure CSP SaaS offerings such as API gateways and SaaS databases to support various project requirements.Utilize programming or scripting languages such as Python and Bourne Shell to automate processes and enhance system functionality.Build and maintain CI/CD pipelines using tools like GitLab to compile, unit test, and deploy software efficiently.Implement containerization solutions using Docker, Podman, or Kubernetes for building and deploying containers to ensure consistent environments.Secure software through code and container scans to maintain high security standards and compliance.Minimum Qualifications:Bachelor’s degree in Computer Science, Engineering, Math, or a related field and at least 5 years of experience in software systems development and management.Proficiency with Terraform, Ansible, and/or AWS Cloud Formation Templates.Experience provisioning and configuring CSP systems (GCP, Microsoft Azure, AWS).Experience deploying and configuring CSP SaaS offerings (API gateways, SaaS databases, etc.).Knowledge of programming or scripting languages (Python, Bourne Shell, etc.).Experience building CI/CD pipelines using tools like GitLab.Proficiency in containerization with Docker, Podman, or Kubernetes. Experience securing software through code and container scans.Preferred Qualifications:Experience with MLOps, including building and deploying machine learning models.Knowledge of generative AI technologies.Experience with SaaS AI tools such as AWS SageMaker.Experience with network configuration and management.Understanding of Zero Trust security principles.Security+ certificationClearance Requirements:Must possess a current and active Top Secret/SCI clearance.Physical Requirements:The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.