Chantilly, VA 20151 • (43.9 miles) • Full Time • 9/17/2025

ManTech seeks a motivated, career and customer-oriented Senior Cyber Security Engineer to join our team in Chantilly, VA. Senior Cyber Security engineers are responsible for the quality of cyber security related solution delivery, development, testing and deployment in support of cyber security efforts. They are involved in creating quality cyber solution components based on the provided requirements. The successful candidate must possess the ability to work in a team environment as well as independently.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

King George, VA 22485 • (34.1 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

Manassas, VA 20110 • (34.5 miles) • Full Time • 8/28/2025

AWS Infrastructure Services owns the design, planning, delivery, and operation of all AWS global infrastructure. In other words, we’re the people who keep the cloud running. We support all AWS data centers and all of the servers, storage, networking, power, and cooling equipment that ensure our customers have continual access to the innovation they rely on. We work on the most challenging problems, with thousands of variables impacting the supply chain and we’re looking for talented people who want to help. You’ll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles. You’ll collaborate with people across AWS to help us deliver the highest standards for safety and security while providing see

Chantilly, VA 20151 • (43.9 miles) • Full Time • 9/3/2025

MANTECH seeks a motivated, career and customer-orientedSenior DevOps Developerto join our team inDenver, CO or Chantilly, VA. This role supports key development efforts and will contribute to building scalable, high-quality solutions that align with mission needs.Responsibilities include but are not limited to:You will develop applications including configuration, report development, and data migration, where applicableIdentify and implement best-practice solutions to address client requirementsPerform custom development and third-party integrationsConduct unit-testing and resolve code defectsMigrate code changes to the production environmentAssist with technical design and documentationCollaborate with internal stakeholders and team members to build solutions that support business require

King George, VA 22485 • (34.1 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

Chantilly, VA 20151 • (43.9 miles) • Full Time • 8/29/2025

MANTECH seeks a motivated, career-drivenPrincipal Cyber Security Systems Engineerto join our team inChantilly, VA. This role offers an exciting opportunity for an experienced engineer to secure and optimize complex infrastructure in support of critical missions. You will work closely with cross-functional teams to ensure secure, scalable, and high-performing systems.You will help design, implement, and maintain secure and scalable systems and infrastructure aligned to mission and business needs. Your role ensures performance, integrity, and protection across enterprise platforms. You will serve as a senior technical leader and mentor, guiding strategic improvements while staying on the forefront of evolving cybersecurity technologies.Responsibilities include but are not limited to:Designin

Dahlgren, VA 22448 • (41.1 miles) • Full Time • 8/23/2025

Overview: SimVentions is looking for a mid to senior level embedded software developer to help develop government systems onsite at NSWCDD. Travel: Travel on occasion within Continental US. 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: 5 Years experience with embedded softwaredevelopment related to microcontrollers or similar devicesProficiency in CExperience in C#Experience with gitExperience with software debugging and associated toolsExperience with hardware debugging at the logical level and associated toolsExperience with Code Composer Studio and/or MPLA

Chantilly, VA 20151 • (43.9 miles) • Full Time • 8/29/2025

MANTECH seeks a motivated and experienced Senior Principal Azure Cloud Engineer to join our team in Chantilly, VA.In this role, you will support mission-critical operations by designing, implementing, and managing Azure cloud infrastructure. You will collaborate with cross-functional teams to enhance cloud environments using modern tools and best practices.Responsibilities include but are not limited to:Supporting Azure cloud services and infrastructure using Infrastructure as Code (IaC) tools such as Terraform or ARM templatesTroubleshooting and resolving issues related to Azure cloud environmentsImplementing Azure security best practices and managing Windows and Linux serversLeveraging Azure data services and containerization technologies alongside DevOps tools including Azure DevOps, Je

Dahlgren, VA 22448 • (41.1 miles) • Full Time • 9/1/2025

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. 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.** Future Funded Travel: Very rare. Less than 10%. Clearance: A DOD Secret Clearance is required for this position. Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for a

Quantico, VA 22134 • (27.9 miles) • Full Time • 8/30/2025

ManTech seeks a motivated, career and customer-oriented Simulation Developer to join our team in Quantico, VAResponsibilities include but are not limited to:Designs, develops, and sustains simulation models and environments using a variety of programming languages, tools, and data sourcesIntegrates simulations into larger system architectures and supports Naval Capabilities Integration Process (NCIP) efforts for interoperability testingCollaborates with engineers, analysts, and operational subject matter experts to enhance model fidelity and ensure simulation accuracyImplements new features, conducts model testing and validation, and troubleshoots issues across evolving simulation platformsLeads and supports planning, coordination, and documentation activities for simulation projects, incl

Chantilly, VA 20151 • (43.9 miles) • Full Time • 9/3/2025

ManTech seeks a motivated, career and customer-oriented Systems Administrator to join our team in Chantilly, Virginia.As a Systems Administrator on our team, you will support a high visibility program that offers challenging positions with significant impact on national security.Responsibilities include but are not limited to:Install, configure, and maintain servers, networks, and computer systemsManage software updates, handle security patches, and troubleshoot any technical issues that may arise.Monitor and track system health.Recognize unusual network activity, which may involve security-sensitive actions like illicit network access or data transfer.Minimum Qualifications:Bachelor’s degree and 4+ years of experience in systems administration or High School Diploma and 8+ years of experi

Chantilly, VA 20151 • (43.9 miles) • Full Time • 8/25/2025

MANTECH seeks a motivated, career and customer-oriented Senior ETL Developer to join our team in Chantilly, VA. Responsibilities include but are not limited to:Designing and implementing large-scale ingest systems in a Big Data environmentOptimizing all stages of the data lifecycle, from initial planning, to ingest, through final display and beyondDesigning and implementing data extraction, cleansing, transformation, loading, and replication/distributionDeveloping custom solutions/code to ingest and exploit new and existing data sourcesWorking with Sponsor development teams to improve application performanceOrganizing and maintaining documentation so others are able to understand and use itCollaborating with teammates, other service providers, vendors, and users to develop new and more eff

Chantilly, VA 20151 • (43.9 miles) • Full Time • 8/23/2025

ManTech seeks a motivated, career and customer-oriented Senior Oracle Database Administrator to join our team in Chantilly , VAThe Senior Oracle Database Administrator will work as part of the overall DBA team to determine, implement, and maintain the most efficient ways to ingest, organize and store petabytes of data from disparate system.Responsibilities include but are not limited to:Participating in leading the design, development, and administration of Oracle 19c databasesDesigning and developing database code for ETL of data from multiple sourcesConducting performance tuning and forecasting system scalabilityRecommending appropriate procedure, query, or package changes and optimizations to ensure and improve system performance and reliabilityInstalling and configuring database enviro