Barstow, MD 20610 • (25.7 miles) • Full Time • 9/23/2025

Overview: SimVentions is a 100% employee-owned business and has consistently been voted one of Virginia's Best Places to Work. SimVentions is seeking a System Administrator to maintain servers for compliance with Naval Air Systems Command (NAVAIR) and Defense Information Systems Agency (DISA) policies for Linux and Windows-based operating systems. We are looking for an out-of-the-box thinker equally comfortable performing installs, patches, upgrades, and troubleshooting for servers as they are building new infrastructure servers or solving complex problems related to Continuous Integration / Continuous Development (CI/CD) pipelines. This position is located at NAVAIR Station Pax River in St. Mary's County, MD and requires daily on-site presence. Clearance: A Top-Secret Clearance is require

Hanover, MD 21076 • (44.5 miles) • Full Time • 9/13/2025

ManTech seeks a motivated, career- and customer-oriented Cloud Engineer to join our team in Hanover, MD. Our team delivers enterprise infrastructure capabilities for a global workforce performing a wide range of missions in defense of our Nation. This effort supports the Enterprise Infrastructure Services (EIS) organization, which oversees MPO’s Enterprise Information Technology (EIT)the backbone platform for all enterprise users.Responsibilities include, but are not limited to:Manage and maintain server infrastructure in a hybrid environment (on-premises and AWS cloud).Administer and troubleshoot Linux (Amazon Linux 2023, RHEL 8/9) and Windows Server (2016/2022) systems.Configure and manage core services such as Active Directory, DNS, and Group Policy.Utilize automation and scripting tool

Barstow, MD 20610 • (25.7 miles) • Full Time • 9/21/2025

Overview: SimVentions is a 100% employee-owned business and has consistently been voted one of Virginia's Best Places to Work. We are seeking a detail-oriented candidate with extensive knowledge of computer or software engineering, and an interest in shaping acquisition efforts and documentation to support the Standard Tester of Reprogrammable Munitions (STORM) Major Capability Acquisition Program (ACAT-III). This position is located at NAVAIR Station Pax River in St. Mary's County, MD and requires daily on-site presence. 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. Requi

Hanover, MD 21076 • (44.5 miles) • Full Time • 9/9/2025

ManTech seeks a motivated, career- and customer-oriented SrCloud System Administrator to join our team in Hanover, MD.Our team delivers enterprise infrastructure capabilities for a global workforce performing a wide range of missions in defense of our Nation. This effort supports the Enterprise Infrastructure Services (EIS) organization, which oversees MPO’s Enterprise Information Technology (EIT)the backbone platform for all enterprise users.Responsibilities include, but are not limited to:Provide administration and support for Windows Server 2022 environments, including Active Directory, and manage Windows 10/11 client systems.Architect, deploy, and maintain robust cloud environments, primarily within AWS, while also supporting existing on-premise server infrastructure.Develop, implement

Barstow, MD 20610 • (25.7 miles) • Full Time • 9/4/2025

Overview: SimVentions is a 100% employee-owned business and has consistently been voted one of Virginia's Best Places to Work. We are seeking a detail-oriented candidate with extensive knowledge of computer or software engineering, and an interest in shaping acquisition efforts and documentation. Ideal candidates will have thorough knowledge and experience working with avionics systems, components, and software. This position is located at NAVAIR Station Pax River in St. Mary's County, MD and requires daily on-site presence. Clearance: An Interim 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 clear

Hanover, MD 21076 • (44.5 miles) • Full Time • 9/9/2025

ManTech seeks a motivated, career- and customer-oriented Cloud System Administrator to join our team in Hanover, MD. Our team delivers enterprise infrastructure capabilities for a global workforce performing a wide range of missions in defense of our Nation. This effort supports the Enterprise Infrastructure Services (EIS) organization, which oversees MPO’s Enterprise Information Technology (EIT)the backbone platform for all enterprise users.Responsibilities include, but are not limited to:Provide administration and support for Windows Server 2022 environments, including Active Directory, and manage Windows 10/11 client systems.Architect, deploy, and maintain robust cloud environments, primarily within AWS, while also supporting existing on-premise server infrastructure.Develop, implement

Charlotte Hall, MD 20622 • (39.4 miles) • Full Time • 9/12/2025

Overview: SimVentions, consistently voted one of Virginia's Best Places to Work, is looking for a Junior Test Automation Software Developer to join our team supporting a US Naval Weapons System. Position requires close collaboration and teamwork with a strong ability to work independently and be self-motivated. This role is located 5 days a week on-site at the NSWC at Dahlgren Naval Base in King George, VA. Travel: Limited Regional 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: Minimum 1 year of experience in software or systems testing.Excellent written and v

Hanover, MD 21076 • (44.5 miles) • Full Time • 9/3/2025

MANTECH seeks a motivated, career and customer-orientedCNO System Administratorto join our team in theHanover, Maryland.Responsibilities include, but are not limited to:Develops and executes plans for new technologies to enhance security capabilities including, perimeter security protections, firewalls, proxies, load balancers, monitoring tools, and data analytics and analysis.Provide support for implementation, troubleshooting, and maintenance of IT systems.Provide Tier 1 problem identification, diagnosis, and resolution of problems.Provide day to day systems support including maintenance, monitoring, and problem resolution.Optimize system operations and resource utilization and perform system capacity analysis and planning.Minimum Qualifications:Bachelor’s Degree and 5+ years of system a

Charlotte Hall, MD 20622 • (39.4 miles) • Full Time • 9/12/2025

Overview: SimVentions is a 100% employee-owned business and has consistently been voted one of Virginia's Best Places to Work. We are seeking an experienced Software Developer to provide engineering support in an Agile development environment for the Tomahawk program. As part of a Scrum team, you will be performing software design, implementation, and test, documentation, and defect analysis, as well as CI/CD pipeline development. This is a journeyman-to-senior level position requiring a minimum of 5 years of professional experience. Must be willing to work on-site at Dahlgren Naval Base 4+ days/week. Travel: Likely none. 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 requ

Hanover, MD 21076 • (44.5 miles) • Full Time • 9/8/2025

MANTECH is seeking a motivated, career and customer-oriented ExpertCNO Software Developer to join our team in Hanover, MD. As a valued member of our organization, you will play a pivotal role in developing advanced cyber capabilities while delivering exceptional service to our clients.Responsibilities include, but are not limited to:Design and develop new hardware or software based CNO capabilities.Manage the designing, developing, documenting, testing, and debugging of applications software and systems.Apply expert knowledge of security concepts and networks.Communicate status with leadership and customers.Ensure software standards are met.Minimum Qualifications:Bachelor's degree and 8+ years of relevant experience, OR 10+ years of relevant experience if no degree.Proficiency in Python an

Hanover, MD 21076 • (44.5 miles) • Full Time • 9/23/2025

ManTech seeks a motivated, career and customer-oriented Software Test Engineer to join our team in Hanover, MD.This team provides software development support for an organization that is tasked with dissemination of data to various customers within the Intelligence Community.Responsibilities include, but are not limited to:Leading the development of Software Assurance Analysis methodologies, formulating, and validating testing scores, creating, and validating test cases that support Software Assurance (SwA) tool analysis.Provide technical expertise in the testing of client software and providing remediation recommendations with clients.Mentoring junior Software Assurance Evaluation Engineers providing advice, guidance, consultation and teaching state-of-the-art software assurance testing a

Hanover, MD 21076 • (44.5 miles) • Full Time • 9/21/2025

Mantech seeks a motivated, career and customer-oriented Cloud DevOps Engineer to join our team in Hanover, MD.In this role you will be working as a cloud Engineer utilizing cloud computing platforms and developing full stack web application interfacing with AWS services. The team delivers enterprise infrastructure capabilities for a global workforce performing a wide range of missions in defense of our Nation.Responsibilities Included but are not limited to:Responsible for building new and improving existing CI/CD pipelines.Responsible for performing operations on end-user virtual machine provisioning/de-provisioning (VMWARE, and Amazon AWS platforms) supporting the automation of Active Directory security group manipulations.Will perform daily development using .Net framework with C#, Pyth

Hanover, MD 21076 • (44.5 miles) • Full Time • 9/21/2025

ManTech seeks a motivated, career and customer-orientedLead CNO Software Engineerto join our team in theHanover, Maryland.Responsibilities include, but are not limited to:Coding and development with Python, Java and Groovy.Performing data analytics on logs, images, and other formats.Working with Databases and General Troubleshooting (tuning and optimization, deadlocks, keys, normalization) in any Relational Database Engines (MySQL, PostgreSQL, Oracle, SQL Server).Using streaming technologies (e.g. Kafka), including customization of data flows.Log analysis and General Troubleshooting (tuning and optimization, Search and Indexing Operations, mapping, monitoring).Working with Elastic Stack (Elastic, Logstash, Beats, Kibana, Fluent etc.) and Opensearch APIs.Perform system and subsystem definit

Hanover, MD 21076 • (44.5 miles) • Full Time • 9/21/2025

ManTech seeks a motivated, career and customer-orientedCNO SoftwareEngineer to join our team in the Hanover, Maryland location. Provides 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 metPerform system and subsystem definition, preliminary and detailed design, design implementation, and subsystem and system integration and tests for a systemResearch requirements for a product, including CNO deployment environment, performance criteria, and competitive issuesDesign for new capabilities or recommendations for improvements to existing capabilitiesDetermining computer user needs; analyzes system capabilities to resolve problems on

Laurel, MD 20724 • (44.6 miles) • Full Time • 9/21/2025

Mantech seeks a motivated, career and customer-oriented LinuxSystem Administrator to join our team in Laurel, MD. You will be part of a dedicated team delivering enterprise infrastructure capabilities for a global workforce that supports a wide range of national defense missions. This role directly supports the Enterprise Infrastructure Services (EIS) organizationthe foundation of all Enterprise Information Technology (EIT) for MPO.Responsibilities include but are not limited to:Configure and manage Linux operating systems. Installs/loads operating system software, troubleshoots maintains integrity and configures network components along with implementing operating systems enhancements to improve reliability and performance.Provides support for implementation, troubleshooting and maintenan

Laurel, MD 20724 • (44.6 miles) • Full Time • 9/21/2025

Mantech seeks a motivated, career and customer-oriented OracleDatabase Administrator/Engineer, to join our team in Laurel, MD.The team delivers enterprise infrastructure capabilities for a global workforce performing a wide range of missions in defense of our Nation.Responsibilities Included but are not limited to:Manages the full lifecycle of Oracle databases, including builds, structure development, decommissioning, monitoring, data migrations, configuration, software baseline maintenance, patching, and documentation.Responsible for supporting the development of long- and short-term requirements for database administration and design.Will assist with guiding users in formulating requirements, advises alternative approaches, and conducts feasibility studies.Responsible for supporting the

Laurel, MD 20724 • (44.6 miles) • Full Time • 9/21/2025

Mantech seeks a motivated, career and customer-oriented Cloud Solution Architect to join our team in Laurel, MD.We deliver critical enterprise infrastructure capabilities that enable a global workforce to carry out vital national defense missions. Our work is a key component of the Enterprise Infrastructure Services (EIS) organization, which oversees MPO's Enterprise Information Technology (EIT). EIT serves as the backbone platform supporting all enterprise users.Responsibilities include, but are not limited to:Serve as a cloud strategy and architecture lead, supporting the customer’s transition to modernized, cloud-native environments.Lead technical exchange meetings and provide expert consultation on cloud migration, transformation planning, and solution optimization.Conduct Analysis-of-

Laurel, MD 20724 • (44.6 miles) • Full Time • 9/21/2025

Mantech seeks a motivated and career-oriented Windows Systems Administrator to join our team in Laurel, MD.You will be part of a dedicated team delivering enterprise infrastructure capabilities for a global workforce that supports a wide range of national defense missions. This role directly supports the Enterprise Infrastructure Services (EIS) organizationthe foundation of all Enterprise Information Technology (EIT) for MPO.Responsibilities include, but are not limited to:Support the implementation, troubleshooting, and maintenance of IT systemsProvide Tier 1 (Help Desk) and Tier 2/3 (Escalation) support for problem identification, diagnosis, and resolutionIdentify and resolve performance and capacity issues in Windows systems, and support hardware-related problem resolution and dispatchi