ManTech seeks a motivated, career and customer-orientedCNO SoftwareEngineer to join our team in Hanover, Maryland.As a CNO Software Engineer on our team, you will provide specialized development, testing and evaluation capabilities tailored to system functions.Responsibilities include, but are not limited to:Develop and code in Python, Java and XML, ensuring software standards are met.Perform system and subsystem definition, preliminary and detailed design, design implementation, and subsystem and system integration and tests for a system.Research requirements for a product, including CNO deployment environment, performance criteria, and competitive issues.Design ideas for new capabilities or recommendations for improvements to existing capabilities.Determine computer user needs; analyzes system capabilities to resolve problems on program intent, output requirements, input data acquisition, programming.Debug and troubleshoot software, modifying existing software to correct errors, to adapt to new requirements, or to improve performance.Perform quality control on team products.Coordinate and perform software deployments for developed products.Minimum Qualifications:Bachelor’s degree in computer science or related technical field and 7+ years of programming experience or High School Diploma and 11+ years of programming experienceExperience with Python and JavaExperience with build environments such as Gradle or MavenExperience with Object Oriented Analysis and DesignKnowledge Software Version ControlKnowledge of CNO environmentKnowledge of XML or XSLTPreferred Qualifications:Experience with SQL and NoSQL databasesExperience with Subversion/GITKnowledge of agile software development methodologyKnowledge of Atlassian Tools, such as Confluence, Jira, Bamboo, Crucible or similarSecurity Clearance Requirements:Must have an active/current TS/SCI with PolygraphPhysical Requirements:Must be able to remain in a stationary position 50% of the time

MANTECH seeks a motivated, career and customer-oriented SeniorApplication Architect to join our team in Alexandria, VA.Responsibilities include but are not limited to:Provide architectural and technical leadership to a small, highly dedicated team operating in a dynamic and flexible environment to serve continuously evolving client needs.Lead the design and implementation of scalable cloud and on-premises infrastructure for large-scale document and case management applications. Guide cross-functional teams to optimize and scale data pipelines for ingesting, conditioning, and storing diverse data sources to support comprehensive analysis, especially of image and video.Lead the standardization and institutionalization of core data and case processing tools and infrastructure, ensuring seamless integration across client workflows.Architect and lead the design of user-friendly case management and records management capabilities, built from commercial and open source components. Architect and oversee the integration of foundational systems to support advanced capabilities, such as AI/ML in cloud environments, ensuring high performance and reliability.Architect and lead the design to expand existing and newly created capabilities for continuously emerging user needs, operating in a highly dynamic and flexible environment.Define architectural design decisions affecting selection, design, and instantiation of infrastructure and environment to meet functional and nonfunctional architectural requirements. These environments will typically be cloud-based but may include on-premises. Decisions include evaluating choice of cloud and comparison with on-premises when applicable.Work closely with development and data science teams to ensure infrastructure supports the solution life cycle, including continuous integration and deployment as applicable. Identify and document cloud and legacy system architectural design risks for selected architectural design.Facilitate the transition to new technical environments, including cloud and infrastructure, ensuring secure data transfer and tool integration. Collaborate with client representatives to assess and recommend networking and environment configurations to enhance data connectivity and transport.Minimum Qualifications:Bachelor’s degree in Computer Science, Engineering, Information Technology, or related technical area. Equivalent experience may be considered in lieu of degree.Minimum of 12 (10 with Master’s) years of experience in software or system architecture and design. At least 5 years of experience in developing secure cloud solutions with one or more major cloud service providers (IBM, AWS, MS Azure, Oracle and Google), including at least 2 years with AWS.Strong experience with Infrastructure as Code.Proven experience with agile methodologies and technical leadership skill. Strong oral and written communication skills, including client-facing discussions and presentations.Proficiency in architecting and designing cloud environments and infrastructure, including AWS services. Must understand the tradeoffs when choosing services and approaches to system design.Experience with architectures supporting full Software Development Life Cycle (SDLC) and/or Machine Learning Operations (MLOps). Familiarity with machine learning and generative AI, object-oriented programming languages, cybersecurity, and relational databases.Experience with containerization and microservices solutions (e.g., Kubernetes, OpenShift).Security Plus or equivalent certification, or ability to obtain such certification.Proficiency in one or more programming languages, including Python. Knowledge and experience working with federal compliance and guidance, such as FISMA, RMF, Federal Enterprise Architecture Framework, DoDAF, NIST Cybersecurity Framework, NIST 800 series, FedRAMP and cloud-based security controls.Preferred Qualifications:Master's degree in a related field.Experience with AWS Direct Connect and other data connectivity solutions.Familiarity with integrating advanced technical capabilities, including tools from organizations such as GTRI and MIT’s Lincoln Labs.Strong understanding of ICD 203 compliance and NARA records management standards.Knowledge of data lifecycle management and data normalization techniques. Experience with integrating case management tools with organizational IAM systems and existing communication channels.Clearance 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.

MANTECH is seeking a motivated, career and customer-oriented Software Engineer to join our team in the Springfield, VA area.Responsibilities include, but are not limited to:Provide expert guidance on Enterprise Asset Management; Identify, recommend, and implement agreed upon leading industry practices, process methodologies, new technologies, and streamlined approaches that afford the client the ability to improve system performance.Provide support to maintain IBM's Maximo to ensure that all Maximo Users have a stable platform to perform daily operations; support reporting capabilities and requirements that streamline and reduce where possible, the manual input of existing data.Provide technical and business-level assistance, incident resolution, and daily support to the Maximo user community; maintain and enhance the functionality, reliability, availability, performance, stability, sustainability, and security of the Maximo application and its databases and tools.Implement best practices, create and improve existing Maximo workflows to manage work management, logistics, and property management processes; oversee the validation and testing of deliverable products in accordance with our customer's approved processes.Provide installations, customizations and design changes for software and hardware products; provide support to a wide array of customers as part of a complex team of multiple contractors and government personnel.Write SQL scripts to support various aspects of customer support and Maximo Development requirements; develop and manage queries, ad hoc reports, and KPI’s.Manage and observe data quality and health throughout front-end database; ability to handle pressure and manage multiple tasks in a fast-paced environment.Minimum Qualifications:Bachelor's degree in Computer Science, Information Technology and 9 years of relevant experience.Experience with JavaScript, Linux/Unix, Perl, Shell, Java, Ruby, PHP, Python, Hands-On SQL, Microsoft ASP.NET MVC, Web API, Node.js.DoD 8570.01-M compliant, IAT II. (CCNA Security, CySA+, GICSP, GSEC, Security+, or SSCP)Troubleshoot and resolve issues related to OpenShift, Kubernetes, and Linux environments.Red Hat Certified Specialist in OpenShift Administration or similar certification.Requires understanding of the RedHat OpenShift cluster to include basic operations of backup, restore and failover/redundancy of services.Preferred Qualifications:4+ years of Maximo Development experience.Maximo versions: at least Maximo 7.6. Able to work on upgrades and development on 7.6.1.2.Maximo modules: must be able to work on all Maximo modules and functionalities, including Work Order Management, Asset Management, Preventive and Corrective Maintenance, Configuration, Scripting, Report Development, Maximo Interfaces with other systems like ERP.Development and maintenance experience with Maximo including TRM rules, Maximo automation scripting, BIRT Reports Development, and work order reports.Provide service for GIS geodatabase editing, data creation and maintenance for applications and as needed.Experience of ArcGIS Server management tools to deploy and manage map and web servicesClearance Requirements:Must have current/active TS/SCI clearance.Physical Requirements:Must be able to remain in a stationary position 50%The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.The 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 situations.

MANTECH seeks a motivated, career and customer-oriented Mission Systems Architect to join our team in Stafford, VA. In this role, you will play a key part in supporting Marine Corps mission engineering initiatives by aligning Modeling, Simulation, Analysis, and Wargaming (MS&A) activities with warfighting experimentation and joint interoperability efforts. You will work closely with stakeholders to plan, coordinate, and execute high-impact projects that directly influence operational readiness and decision-making.Responsibilities include but are not limited to: Define and translate mission objectives into system architectures, requirements, and design specifications in alignment with DoDAF/UAF standards.Develop mission concepts of operations (CONOPS), operational scenarios, and performance models to ensure comprehensive mission planning and execution.Apply Model-Based Systems Engineering (MBSE) methods and tools to generate, maintain, and interpret mission architecture views, ensuring traceability between mission needs and technical solutions.Lead integration, verification, and validation efforts to confirm system readiness and mission success across the program lifecycle.Collaborate with cross-functional teams and stakeholdersincluding analysts, warfighters, developers, and subject matter expertsto align mission objectives with system capabilities and drive continuous improvement.Minimum Qualifications:Minimum of 3 years of experience in systems engineering, software development, or related engineering discipline, with exposure to complex military systems and architectures.Bachelor’s degree in Computer Engineering, Electrical Engineering, Systems Engineering, or a related technical field. Additional 2 years of experience may be substituted in lieu of degree.Hands-on experience applying DoDAF and/or UAF for system architecture definition, visualization, and documentation.Proficiency with requirements management tools (e.g., DOORS, Jama, Cameo) and model-based systems engineering (MBSE) methodologies, including modeling and simulation tools (e.g., SysML, MATLAB, Simulink).Strong communication skills with the ability to convey complex technical concepts clearly across multi-disciplinary teams and stakeholdersPreferred Qualifications:Proficiency in one or more programming languages such as C++, Python, or Java.Experience with hardware/software integration and familiarity with network architectures and protocols.Advanced expertise with modeling and simulation tools and technologies (e.g., Cameo & SysML, MATLAB, Simulink, ExtendSim).Demonstrated success operating in fast-paced, multi-disciplinary environments supporting mission-driven objectivesClearance Requirements:This role requires an active DoD TS/SCI Clearance with SAP eligibly.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 Model Based Systems Engineer (MBSE) to join our team in Stafford, VA.This is a full-time onsite position where you will provide subject matter expertise to perform MBSE activities using Cameo Systems Modeler in support of a critical Department of Defense (DoD) mission.The ideal candidate will bring deep expertise in systems modeling, operational architecture, and mission thread development in alignment with DoDAF and UAF frameworks. This role is pivotal in supporting mission engineering analysis, capability gap assessment, and architecture development within a highly dynamic and collaborative environment to enable and enhance our Nation's fighting forces.Responsibilities include but are not limited to:Lead the development and maintenance of system models for DoD mission engineering projects using Cameo Systems Modeler.Design and update mission threads, operational views, and system architecture models in line with DoDAF/UAF standards.Integrate both existing and new capabilities into mission-level architectural models.Work with stakeholders to find capability gaps, define decision points, and assist with data-driven risk and performance assessments.Collaborate with various teams, including systems engineers and analysts, to ensure traceability between requirements and operational objectives.Contribute to a collaborative modeling environment, such as a Government-managed Teamwork Cloud.Prepare and deliver technical briefings and model walkthroughs to Government stakeholders, and mentor others on MBSE processes and best practices.Minimum Qualifications:Bachelor’s degree and at least 12 years of experience in Systems Engineering, Computer Science, or a related technical field or Master's degree with 7+ years of professional experience in systems modeling using Cameo Systems Modeler (MagicDraw).Deep knowledge of DoDAF, UAF, SysML, and model organization best practices.Hands-on experience with Teamwork Cloud and other simulation/analysis tool integrations.Strong understanding of systems engineering principles, including requirements management, system architecture, and verification and validation.Strong understanding of mission engineering, kill chains/kill webs, and joint all-domain operations concepts like CJADC2.Excellent communication skills with a proven ability to deliver briefings to senior leadership and work effectively with technical and operational teams.Preferred Qualifications:A Master's degree in Computer Science, Software Engineering, or a related field.Experience with international standards like ISO and IEEE.Experience working with a DoD Combatant Command or supporting Navy, Marine Corps, or Joint Staff missions.Familiarity with MBSE for advanced prototyping and digital engineering efforts, along with knowledge of government modeling environments like the Navy Integrated Modeling Environment (NIME).Relevant certifications, including OCSMP, INCOSE CSEP/ESEP, or DoDAF/UAF certifications.Clearance Requirements:Candidate must have an active / current TS/SCI clearancePhysical Requirements:Must be able to be in a stationary position more than 50% of the time.Must be able to communicate, converse, and exchange information with peers and senior personnel.Constantly operates a computer and other office productivity machinery.The 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 situations.The 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 Systems Engineer to join our team in Belcamp, MD. This is an onsite position.Responsibilities include but are not limited to:Focus on delivering high-quality DoD 5000.02 artifacts and documentation that support critical US Government programs.Apply comprehensive systems engineering principles across all phases of the systems lifecycle, ensuring successful project outcomes.Engage effectively with Government stakeholders, providing expert technical guidance on systems engineering matters and resolving issues proactively.Communicate clearly and concisely with project personnel, Government representatives, and senior executives.Maintain the technical integrity and quality of all work and deliverables in alignment with ISO/IEC15288 process areas, driving operational excellence.Develop and contribute to key systems engineering documentation, including System Engineering Plans, requirements specifications, and interface control documents, ensuring accurate project execution.Provide leadership and mentorship to subordinate project and ManTech team members, fostering a collaborative and high-performing team environment.Minimum Qualifications:Bachelor's degree in STEM field or Highschool and 13 years of experience; Associates and 11 years of experience in lieu of degree, a candidate holding a relevant master’s degree may be granted 2 years’ experience credit for that extra education, a candidate holding a relevant PhD degree may be granted 4 years’ experience credit for that extra education5 years of relevant work experience in systems engineering or a related field.DoD 8570.01-m IAT Level II certification.Proven experience with DoD 5000.02 documentation requirements.Experience with use case development, requirements derivation, and management.Demonstrated ability to develop high-quality technical project artifacts.Familiarity with Agile software development processes and methodologies.Experience with software engineering processes and best practices.Preferred Qualifications:Bachelor's degree in Systems Engineering.Professional Certifications: Certified Systems Engineering Professional (CSEP), Expert Systems Engineering Professional (ESEP), or DAWIA Systems Engineering Level III.Clearance Requirements:Top Secret Clearance with SCI eligibility.Must be a US Citizen and able to obtain and maintain a Top Secret Clearance with SCI eligibility.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.Ability to travel to various physical customer locations within APG as needed.

MANTECH seeks a motivated, career and customer-oriented Systems Engineer III to join our team in Annapolis Junction, Maryland.ManTech is currently seeking Systems Engineer III to join our team at Annapolis Junction, MD. We are seeking a Senior Systems Engineer who is a seasoned IT professional responsible for designing, implementing, and a top-level trouble shooter supporting a high-level architecture of an organization's backend infrastructure. You will communicate with other project personnel, Government stakeholders, and senior executives.Responsibilities include but are not limited to:Administer and maintain IT infrastructure by utilizing expert-level knowledge of the Linux operating system, along with deep expertise in server administration, virtualization, and cloud platforms like AWS or Azure, to manage the organization's backend systems.Develop and implement automation solutions through creating scalable automation services using strong scripting and orchestration skills, with proficiency in tools like Python, Bash, and Ansible.Design and manage system architecture by applying systems engineering principles to design, implement, and manage the high-level architecture of the organization's backend infrastructure.Ensure network and system security through a strong understanding of networking and security fundamentals, including TCP/IP, firewalls, and VPNs, to protect the organization's infrastructure.Communicate with stakeholders - Interact directly with government personnel, senior executives, and other project members to discuss technical issues and project status.Provide technical guidance and troubleshooting as a top-level troubleshooter, addressing technical considerations, problems, and issues for both internal teams and government stakeholders.Minimum Qualifications:Bachelor's degree in STEM field or Highschool and 13 years of experience; Associates and 11 years of experience in lieu of degree, a candidate holding a relevant master’s degree may be granted 2 years’ experience credit for that extra education, a candidate holding a relevant PhD degree may be granted 4 years’ experience credit for that extra education.5 years of position-relevant work experience.DoD 8570.01-m IAT Level II.Strong proficiency in scripting and automation, with hands-on experience in Python, Bash, and an infrastructure orchestration tool like Ansible.Experience in front-end web development to create internal tools and solutions.Proven background as an Orchestration Engineer or in a similar role focused on building scalable automation services.Solid grasp of TCP/IP networking, firewalls, VLANs, and VPNs.Expert-level knowledge of the Linux operating system.Preferred Qualifications: Experience with full-stack development, including creating and interacting with databases and APIs.Knowledge of Infrastructure as Code (IaC) principles, preferably with experience using Terraform.Familiarity with public cloud platforms (AWS, Azure, GCP) and container technologies (Docker, Kubernetes).Proficiency with virtualization platforms such as VMware vSphere or Microsoft Hyper-V.Exceptional troubleshooting and problem-solving skills, with a talent for systematically diagnosing and resolving complex technical issues.A foundational understanding of traditional Systems Administration principlesClearance Requirements:TS/SCIPhysical Requirements:The person in this position must have the ability to perform tasks while stationary 50% of the time at a computer, with specific emphasis on visual acuity for close-range work. 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