Water Tank Engineer Whitman, Requardt & Associates, LLPWater Tank EngineerFairfax, VA$90,000–$185,000 / yearFull timeThis role involves collaborating with multidisciplinary teams, delivering high-quality engineering solutions, and ensuring projects meet client expectations, budget, and schedule. The specific compensation offered to a candidate may vary based on factors including, but not limited to, the candidate’s relevant knowledge, training, skills, work location, and/or experience.
Modeling & Simulation Systems Engineer -- T&E Support WILLCORModeling & Simulation Systems Engineer -- T&E SupportDistrict of ColumbiaThe role bridges technical teams and program leadership, ensuring digital engineering, test bed integration, and M&S governance align with Test & Evaluation (T&E) objectives. 3+ years supporting DoD Modeling & Simulation, systems engineering, or programmatic efforts.
AWS Systems Engineer - TS/SCI w/ Poly General Dynamics Information TechnologyAWS Systems Engineer - TS/SCI w/ PolyHerndon, VirginiaTo ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. Education: Bachelor’s degree in Computer Science, Engineering, or a related technical discipline, or the equivalent combination of education, technical certifications or training, or work experience.
System Engineer Que Technology GroupSystem EngineerAnnapolis Junction, MarylandThe ideal candidate will possess strong technical expertise, excellent communication skills, and a commitment to maintaining system integrity, performance, and security while working closely with users and customers. Que Technology Group, Inc. is seeking a highly motivated System Engineer to join a small, mission-focused team supporting critical client/server environments.
Lead Wireless Communications Systems Engineer The MITRE CorporationLead Wireless Communications Systems EngineerMclean, VA$156,400–$195,500 / yearDepartment Summary: MITRE's Technology & Engineering Organization has an excellent opportunity to be part of a dynamic technical team having a substantial impact on the design and development of communications systems in support of various U.S. Government agencies, including the Department of Defense, the Intelligence Community, the Department of Homeland Security, the Federal Aviation Administration, and others. Experience in leading multiple engineering disciplines to provide solutions to complex problems that require unified software, hardware, mechanical and reliability approaches while balancing cost and schedule constraints.
NewSenior Systems Engineer Staffed4USenior Systems EngineerAnnapolis Junction, MarylandIn this role, you'll work closely with mission users, stakeholders, and technical teams to gather requirements, define system capabilities, and ensure operational needs are successfully translated into engineering solutions. This position requires a seasoned systems engineer who enjoys collaborating across multidisciplinary teams while driving technical planning and systems engineering efforts from concept through implementation.
Wireless Communications Systems Engineer The MITRE CorporationWireless Communications Systems EngineerMclean, VA$126,800–$158,500 / yearDepartment Summary: MITRE's Technology & Engineering Organization has an excellent opportunity to be part of a dynamic technical team having a substantial impact on the design and development of communications systems in support of various U.S. Government agencies, including the Department of Defense, the Intelligence Community, the Department of Homeland Security, the Federal Aviation Administration, and others. Experience in working with multiple engineering disciplines to provide solutions to complex problems that require unified software, hardware, mechanical and reliability approaches while balancing cost and schedule constraints.
Cybersecurity Systems Engineer LeidosCybersecurity Systems EngineerLinthicum Heights, MarylandFebruary 26, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Senior Associate, Building Systems Engineer HITT ContractingSenior Associate, Building Systems EngineerFalls Church, VirginiaAs a critical member of our Facilities Team, the Building Systems Engineer, Senior Associate is responsible for the operation, maintenance, and repair of Net Zero building systems, including mechanical, electrical, plumbing, life safety, and building automation systems. Conducts routine building walk-throughs to assess system performance, document equipment condition, identify energy inefficiencies, and report deficiencies requiring corrective action that could impact energy use or NZE performance targets.
Senior Systems Engineer – Advanced Reentry Johns Hopkins Applied Physics LaboratorySenior Systems Engineer – Advanced ReentryLaurel, MarylandFull timeAPL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development. Provide systems engineering expertise and leadership to assess weapon system capabilities and support/lead the development of next generation reentry systems, hypersonic systems, and enabling technologies.
NewPrincipal Systems Engineer, Digital Engineering Solutions Modern Government SolutionsPrincipal Systems Engineer, Digital Engineering SolutionsSterling, VAFull timeTITLE: Principal Systems Engineer, Digital Engineering SolutionsLOCATION: Sterling, VA (Relocation assistance considered)CLEARANCE REQUIRED: Active TS/SCI with CI PolyEMPLOYMENT TYPE: Part-Time / As Needed, Onsite POSITION SUMMARYModern Government Solutions (MGS) is seeking a Principal Systems Engineer, Digital Engineering Solutions to lead the architecture, deployment, and sustainment of enterprise engineering platform environments in support of national security missions. Bachelor's degree in Systems Engineering, Computer Science, Computer Engineering, Software Engineering, Information Technology, Electrical Engineering, Mathematics, Physics, or a related field.16+ years of experience architecting, deploying, and sustaining enterprise engineering platforms and IT infrastructure within cloud-hosted environments.
NewSr. Systems Engineer, Platform/Infrastructure Modern Government SolutionsSr. Systems Engineer, Platform/InfrastructureSterling, VAFull timeExperience supporting relational and non-relational databases including PostgreSQL, MySQL, and MongoDB.Experience supporting IdAM technologies including Active Directory, SAML, OpenLDAP, OAuth 2.0, and OIDC.Experience with DevOps tooling including Ansible, Terraform, Jenkins, and GitLab. Administer relational and non-relational databases including PostgreSQL, MySQL, and MongoDB.Support Identity and Access Management (IdAM) solutions including Active Directory, SAML, OpenLDAP, OAuth 2.0, and OIDC.Implement and maintain DevOps automation using Ansible, Terraform, Jenkins, and GitLab.
NewSenior Systems Engineer (IBM ELM) - TS/SCI w CI Poly Modern Government SolutionsSenior Systems Engineer (IBM ELM) - TS/SCI w CI PolySterling, VAFull timeBachelor's degree in Systems Engineering, Computer Science, Computer Engineering, Software Engineering, Information Technology, Electrical Engineering, Mathematics, Physics, or a related field.10+ years of experience supporting enterprise systems and engineering environments.10+ years of experience configuring, deploying, and maintaining enterprise engineering applications using Automation as Code (AaC) and CI/CD pipelines within cloud-based environments. Experience supporting enterprise infrastructure, including relational and non-relational databases, Identity and Access Management (IDAM), and authentication technologies such as Active Directory, SAML, OAuth 2.0, OpenLDAP, and OIDC.Experience implementing DevSecOps and infrastructure automation solutions utilizing GitLab, Jenkins, Terraform, Ansible, or similar tools, with strong troubleshooting, testing, documentation, and communication skills.
NewSr. Systems Engineer (Citrix) - TS/SCI w CI Polygraph Modern Government SolutionsSr. Systems Engineer (Citrix) - TS/SCI w CI PolygraphSterling, VAFull timeExperience may be acceptable in lieu of a degree.10+ years of experience deploying and maintaining platform infrastructure and COTS applications in cloud-based environments.5+ years of hands-on experience with Citrix Virtual Apps and Desktops, including expert knowledge of Citrix architecture, components, and deployment methodologies. Implement and manage Citrix Provisioning Services (PVS) or Machine Creation Services (MCS) for desktop image management; manage Virtual Delivery Agents (VDAs), hypervisors, and storage systems.
NewPrincipal Systems Engineer (API Gateway) - TS/SCI w CI Poly Modern Government SolutionsPrincipal Systems Engineer (API Gateway) - TS/SCI w CI PolySterling, VAFull timeBachelor's degree in Systems Engineering, Computer Science, Computer Engineering, Software Engineering, Information Technology, Electrical Engineering, Mathematics, Physics, or a related field.16+ years of experience designing, integrating, and supporting enterprise systems, cloud architectures, and API-driven solutions within complex mission environments.5+ years of experience implementing and administering API gateway technologies in cloud-based architectures; Experience designing secure APIs and enterprise integration solutions utilizing REST, GraphQL, event-driven architectures, message queues, streaming platforms, or ETL pipelines. TITLE: Principal Systems Engineer (API Gateway)LOCATION: Sterling, VA (Relocation assistance considered)CLEARANCE REQUIRED: Active TS/SCI with CI PolyEMPLOYMENT TYPE: Full-time, Onsite POSITION SUMMARYModern Government Solutions (MGS) is seeking a Principal Systems Engineer to architect, integrate, and secure mission-critical API ecosystems supporting next-generation national security capabilities.
Linux Systems Engineer WCBincLinux Systems EngineerSpringfield, VirginiaOur work depends on a TS/SCI cleared Linux Systems Engineer joining our team to support our customer in Springfield, VA and help ensure today is safe and tomorrow is smarter. Oversee complex infrastructure including installing, configuring, testing, and maintaining operating systems, application software, and system management tools.
Decision Systems Engineer Johns Hopkins Applied Physics LaboratoryDecision Systems EngineerLaurel, MarylandFull timeYou will serve on a highly motivated multi-disciplinary team that: develops and evaluates new capabilities; figures out how to implement those capabilities in new or existing systems; uses models and simulations to evaluate different options; translates selected concepts into specific functional and performance requirements; and presents results in technical meetings and program reviews with government, contractor, and research laboratory participants. Your primary responsibility will be to contribute to systems engineering activities on sophisticated air, missile, and multi-domain defense programs, in the context of a focused digital engineering development process.
Software Engineer (Mid/Senior) - Embedded Systems & HITL ZTI Solutions, LLCSoftware Engineer (Mid/Senior) - Embedded Systems & HITLReston, Virginia$140,000–$200,000Qualifications: Typical Education and Experience: Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, or a related technical discipline; career experience, knowledge, and industry certifications will be considered in lieu of degrees. The successful candidate will be embedded with a multidisciplinary team of software, hardware, and systems engineers responsible for the design, development, integration, and certification of low-level software running on bare metal targets and interfacing with custom and government-furnished hardware.
Senior Systems Engineer Supernus PharmaceuticalsSenior Systems EngineerRockville, MarylandPosition may require prolonged sitting, standing, walking, reaching, twisting, turning, kneeling, and bending; the ability to push, pull, drag, and/or lift to 25 pounds; normal manual dexterity and hand/eye coordination; repetitive hand movement using a computer keyboard and mouse. This role serves as a technical leader to a team of system administrators, collaborate with cross-functional teams, and play a critical role in shaping Supernus’s technology strategy.
Senior Automation Systems Engineer, NA Vantage Data CentersSenior Automation Systems Engineer, NASterling, VADeveloping and operating across North America, EMEA and Asia Pacific, Vantage has evolved data center design in innovative ways to deliver dramatic gains in reliability, efficiency and sustainability in flexible environments that can scale as quickly as the market demands. While performing the duties of this job, the employee is occasionally required to stand; walk; sit; use hands to handle, or feel objects; reach with hands and arms; climb stairs; balance; stoop or kneel; talk and hear.