Principal Systems Engineer (Mission Management) Themis InsightPrincipal Systems Engineer (Mission Management)Fort Meade, MDYou will need to be able to understand/learn the data flows between systems; and learn how data is transformed, checked and manipulated to support dissemination adjudicators in getting the information and artifacts needed to verify that described controls and interfaces meet policy, oversight and compliance requirements, as well as any requirements specifically levied by the adjudicating body. We provide fresh alternatives to ordinary, mainstream consulting firms through small, highly skilled, and hand-picked teams that can meet clients' needs in any industry.
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.
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.
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.
Radar Systems Engineer 2 ELTA North AmericaRadar Systems Engineer 2Annapolis Junction, MD$130,000–$151,000 / yearELTA North America (ELTA NA) is a global leader in the design, manufacture and support of innovative electronic systems for the United States government. Develop and maintain detailed technical documentation, including system architecture, integration plans, test procedures, and user manuals.
Systems Engineer With Data Science Expertise -Ts/Sci With Poly CACI International Inc.Systems Engineer With Data Science Expertise -Ts/Sci With PolyFort Meade, MD$94,400–$198,200 / yearPay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. The Opportunity: CACI is seeking talented Systems Engineers with Data Science experience to support our client's national defense initiatives in the Fort Meade, Maryland area.
Systems Engineer/Project Manager PeratonSystems Engineer/Project ManagerChantilly, Virginia$146,000–$234,000 / yearFull timeCandidate will perform traditional Systems Engineering and Project Management activities to include the following tasks/duties: Collaborate with customer and stakeholders to understand mission needs then develop Concept of Operations documents. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies.
Sr. Systems Engineer Ampcus IncorporatedSr. Systems EngineerReston, VAMinimum 3 years of Java experience in the development of Java/JEE enterprise applications using JEE, Spring, Hibernate, Web Services, RESTful, AJAX, JSON, SQL, JUnit, and MavenExperience with Frameworks including Spring MVC, Spring Batch, Spring Boot, Spring Integration, Spring Security, Hibernate, MyBatis. Java/JEE, Spring MVC, Spring Batch, Spring Boot, Spring Integration, Spring Security, Hibernate, MyBatis, AngularJS, REST and SOAP Web Services, Git, Maven, Jenkins, Junit and TestNG, Maven, Ant, XML, MyEclipse, Unix, Big Data.
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.
Control Systems Engineer LeidosControl Systems EngineerSpringfield, Virginia$73,450–$132,775 / yearMay 1, 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.
Systems Engineer PEMCCO Logistic Services LLCSystems EngineerWashington, DC$58.67–$88 / hourIf you're a systems engineering professional looking to solve complex technical problems, support mission-critical programs, and contribute to innovative engineering solutions, we encourage you to apply. This opportunity is a strong fit for candidates with experience in systems engineering, systems integration, systems analysis, requirements management, verification and validation, technical documentation, or systems lifecycle support.
Cybersecurity Systems Engineer Leidos Holdings Inc.Cybersecurity Systems EngineerLinthicum Heights, MD$107,900–$195,050 / yearFor 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.
Systems Engineer Level IV KBRSystems Engineer Level IVWashington Navy Yard, DC$135,600–$186,400 / yearThe Systems Engineer Level IV provides advanced systems engineering leadership across the full lifecycle of space and aerospace systems supporting U.S. Government programs. This role is responsible for requirements development, system architecture, integration, verification, and mission execution, ensuring all subsystems function cohesively to meet mission objectives within cost, schedule, and technical constraints.