NewProcess Mechanical Engineer Project Manager Wastewater PM PL ASSOCIATES INC. (PLA)Process Mechanical Engineer Project Manager Wastewater PMWashington, DCMechanical Engineer shall have a bachelor’s degree in mechanical engineering, Five years of experience performing engineering design related functions for water and/or wastewater facilities owned by municipalities or regional water and/or wastewater authorities. Shall review contract specifications for proposed mechanical systems, equipment and materials for sufficiency and for probable, good durability and long-term reliability.
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.
Systems Engineer Booz Allen HamiltonSystems EngineerLorton, Virginia$53,000–$108,000 / yearOnsite : If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.
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.
Senior Systems Engineer Absolute Business Solutions CorpSenior Systems EngineerBethesda, MD$90,000–$140,000 / yearAs a senior member of the team, you bring deep expertise in Systems Engineering (SE) and will work closely with Systems Engineers, Software Engineers, Architects as well as Government counterparts on the following key tasks: Technical support, coordination, and execution of systems engineering activities such as feature/requirements analysis, design, implementation planning, integration and test, sustainment, documentation, deployment, and system assessment. As the Senior System Engineer, you will perform and manage the full spectrum of systems engineering tasks to include requirements analysis, feature, system and interface design, system integration, system testing, as well as working with the SE team in support of Model Based Systems Engineering (MBSE) and all associated documentation.
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.
Systems Engineer Level 1 WOOD Federal SolutionsSystems Engineer Level 1Ft. Meade, MDBachelor’s degree in System Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or related discipline from an accredited college or university is required and seven (7) years as a SE in program and contracts of similar scope, type, and complexity is required. This role is ideal for someone who thrives in a practical, problem‑solving environment and wants to make an immediate impact on enterprise‑scale cybersecurity.
NewSenior Systems Engineer PeratonSenior Systems EngineerSpringfield, Virginia$135,000–$216,000 / yearFull timeResponsibilities: Senior-level Systems Engineers guide engineering teams in taking a multi-discipline approach to requirements engineering, solutions engineering, scheduling, reliability, resiliency, services development, integration, test and evaluation, maintainability and analysis across the National System of Geospatial-intelligence (NSG), Allied System of Geospatial-intelligence (ASG) and Federal Agencies to ensure timely and accurate GEOINT. Required: Bachelor’s degree or higher in Systems Engineering or in related technical or scientific fields such as engineering, physics, mathematics, operations research, engineering management, Computer Science, Information Technology, Management Information Systems, or related STEM degree program, or 12+ years of Systems Engineer work experience.
Lead Systems Engineer Xcellent Technology SolutionsLead Systems EngineerSuitland, MDSkills and Qualifications To be considered for this role, the desired candidate must demonstrate: Bachelor’s degree and 15 years of relevant experience Relevant experience must demonstrate expertise with cloud environments Includes experience working with Oracle databases and SQL proficiency. In this role, you will be offering your oversight and expertise for the systems’ transition to cloud-native environments, leading efficient workflows on the GEOTAM team to provide accurate accessible data to end-users, and maintain and improve current frameworks.
Geospatial Systems Engineer Meridian SystematicsGeospatial Systems EngineerSpringfield, VAFull timeEnterprise GIS Architecture: Design, integrate, and optimize enterprise GIS platforms (ArcGIS Enterprise/Pro, GeoServer, PostGIS) and interoperable OGC-compliant web services (WMS, WFS, WMTS, OGC API – Features). This role bridges enterprise GIS and modern cloud-native software engineering, focusing heavily on Kubernetes orchestration, DevSecOps pipelines, and containerized microservices within secure environments.
Data Integration Systems Engineer 686 Freedom Technology Solutions GroupData Integration Systems Engineer 686Annapolis JunctionThe ideal candidate will help design and implement automated workflows for ingesting structured spreadsheet data into enterprise databases, converting source data into JSON representations, validating data integrity and supporting integration into Pega-based workflows and reporting ecosystems. Working alongside experts in software engineering, cloud computing, DevSecOps, systems engineering, user experience, and enterprise platforms, you'll help modernize legacy systems, automate business processes, integrate commercial technologies, and deliver innovative solutions that improve efficiency, reduce costs, and enhance the user experience.
Space Systems Engineer (Expert) - TS/SCI Clearance Required Core-CSI LLC.Space Systems Engineer (Expert) - TS/SCI Clearance RequiredSpringfield, VAFull timeThis role applies to a multi-disciplinary approach to the development, integration, and sustainment of space-based capabilities within Controlled Access Programs (CAPs) and Special Access Programs (SAPs) across the National System for Geospatial Intelligence (NSG) and the Department of Defense/Intelligence Community (DoD/IC).The engineer will engage in activities including requirements engineering, solutions development, systems reliability and resiliency, services deployment, research and development (R&D), systems integration, test and evaluation (T&E), and maintainability analysis. Responsibilities:The KPMO Space Systems Engineer provides advanced engineering support across all phases of the system lifecycle to ensure the delivery of timely and accurate Geospatial Intelligence (GEOINT).