NewSystems Engineer, Linux and AI VisaSystems Engineer, Linux and AIAshburn, VA$88,000–$136,900 / yearAs an Associate Systems Engineer, you’ll join a global team that plans, implements, and supports secure, resilient endpoints and platforms—partnering closely with vendors and global support groups to deliver nimble, client‑centric solutions. Deploy models as APIs or services, integrate with existing applications, implement and tune orchestration around tools and plugins (MCP‑style connectors, function‑calling schemas, vector DBs), including prompt design, safety/guardrails, and evaluation of agent behavior.
Water/Wastewater Engineer Whitman, Requardt & Associates, LLPWater/Wastewater EngineerFairfax, VA$90,000–$185,000 / yearFull timeWe are seeking an experienced Water/wastewater engineer with progressive experience in water and wastewater system planning, hydraulic modeling, design and construction management, of water and wastewater facilities, pipelines, water storage tanks, pumping stations, force mains, and the evaluation, design and rehabilitation of sanitary sewer systems. The successful candidate is expected to be able to independently work on technical tasks with minimum supervision, lead and coordinate technical tasks and, when appropriate, serve as the project design lead.
Senior Water/Wastewater Engineer Whitman, Requardt & Associates, LLPSenior Water/Wastewater EngineerFairfax, VA$160,000–$240,000 / yearFull timeWe are seeking an experienced water/wastewater engineer with progressive experience in water and wastewater system planning, hydraulic modeling, design and construction management, of water and wastewater facilities, pipelines, water storage tanks, pumping stations, force mains, and the evaluation, design and rehabilitation of sanitary sewer systems. The successful candidate is expected to be able to independently work on technical tasks with minimum supervision, lead and coordinate technical tasks and, when appropriate, serve as the project design lead.
NewRailway Engineer - Remote Teoresi GroupRailway Engineer - RemoteWashington DC, DCRemoteIntegration of onboard and wayside subsystems, including signaling components, sensors, communication interfaces, and control units, into system-level testing environments (e.g., HIL/SIL). At Teoresi, we specialize in supporting companies in creating projects using cutting-edge technologies such as self-driving cars and nanotechnology for the medical field.
NewForward Deployed Engineer - RMF Customer Value PartnersForward Deployed Engineer - RMFWashington, DCAs an FDE-RMF you will deploy FiferAUDIT in customer environments (AWS, Azure, GCP), configure control mappings, train agency staff on the platform, and ensure successful adoption. It accelerates the NIST 800-53 assessment process by intelligently scanning controls, generates assessment evidence, produces System Security Plan (SSP) narratives, and automates POA&M tracking.
NewSenior Mission Critical Electrical Engineer Whitman, Requardt & Associates, LLPSenior Mission Critical Electrical EngineerFairfax, VA$160,000–$240,000 / yearWe are seeking a highly skilled Mission Critical Professional Electrical Engineer to join our dynamic team responsible for the design and analysis of high-reliability electrical systems supporting mission critical environments and data centers. Design experience with the following: One-line diagrams and specifications for mission critical electrical components, including UPS systems, generators, medium voltage switchgear, and static transfer switches.
NewSenior Project Engineer - Alexandria, VA rand* construction corporationSenior Project Engineer - Alexandria, VAAlexandria, VAAbility to build and maintain positive relationships with clients, building owners, building managers, consultants, architects, and fellow employees. If working for a team of dynamic professionals that creates award winning projects for some of the world’s most successful companies sounds exciting, rand* construction corporation is where you want to be.
Senior Software Simulation Engineer By Light Professional IT ServicesSenior Software Simulation EngineerChantilly, VAVeraxx has a high level of expertise in flight simulation hardware and software development, as well as computer architecture, tactical environments, interoperability (HLA/DIS), avionics systems, graphics and real-time embedded systems. Candidate will have the opportunity to work on a variety of flight simulators and develop/integrate software in areas such as avionics, tactical environments, interfaces to audio, visual, motion, and I/O systems, and Instructor Operator Stations (IOS).
User Activity Monitor (UAM) Engineer System OneUser Activity Monitor (UAM) EngineerLorton, VA$80.50–$96.15 / hourSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Support the User Activity Monitor Software solution, executing all updates, changes, deployments, and other sustainment activities.
NewSenior Mechanical Engineer WabtecSenior Mechanical EngineerGermantown, MD$91,100–$129,800 / yearThe salary rate for this role is currently $91100-129800 The actual salary offered to a candidate may be influenced by a variety of factors, such as: training, transferable skills, work experience, education, business needs, market demands and work location. With roots that date back to George Westinghouse, Thomas Edison, and Louis Faiveley, Wabtec has always built technologies and implemented solutions for a variety of sectors that are critical to meeting the needs of customers and governments alike.
NewSenior Machine Learning Engineer CoVarSenior Machine Learning EngineerMcLean, VAWe're seeking a Senior ML Engineer (Technical Lead) with deep hands-on expertise in machine learning and computer vision, who can also lead DoD-focused programs, own customer engagement, contribute to business development, and help grow and manage a local engineering team in McLean over time. Communicate and publish: Present results to high-level DoD and industry customers; author technical reports; publish novel work in classified/unclassified settings when applicable.
NewSenior Machine Learning Engineer II Rocket Lab CorporationSenior Machine Learning Engineer IIChantilly, VA$153,000–$229,500 / yearTo conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), Rocket Lab Employees must be a U.S. citizen, lawful U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum, or be eligible to obtain the required authorizations from the U.S. Department of State and/or the U.S. Department of Commerce, as applicable. As a Senior Machine Learning Engineer II based at our Optical Systems sites in Chantilly, VA, you will have the opportunity to support Tranche 3 of the U.S. Space Development Agency's (SDA) Proliferated Warfighter Space Architecture (PWSA) and beyond by building deep learning neural networks for advanced Electro-Optical (EO/IR) image processing.
NewSenior Engineer Alexton IncorporatedSenior EngineerLorton, VAdocumentation to support tracking and control of the utilization of DOE/HQ personnel, equipment, facility and supply resources which are required to support radio, conference audio. The engineer provides design, installation, operation and component level repair for conference audio and television systems at.
NewCyber Operations Readiness Assessment Network Engineer/Reviewer TekSynapCyber Operations Readiness Assessment Network Engineer/ReviewerFort Belvoir, VA$125,000–$160,000 / yearThis high-impact mission involves conducting advanced cybersecurity inspections, uncovering vulnerabilities across cutting-edge networks, and supporting real-time decision-making that directly shapes DTRA’s global operations. The salary range displayed is an estimate only and is not a guarantee of compensation or salary, and will be determined on several factors regarding the individual’s particular combination of education, knowledge, skills, competencies and experience, as well as contract parameters and organizational requirements.
NewGeotechnical Design Engineer DGI - Menard INCGeotechnical Design EngineerWashington, DCPerform finite element modeling, as needed, to understand complex soil-structure interactions and estimate deformations and stresses within the soil and ground improvement elements. Perform all required design calculations and analyses including, but not limited to, global stability, settlement, bearing capacity, and structural and geotechnical capacity of CMCs.
NewSenior Platform Engineer BixalSenior Platform EngineerFairfax, VA$135,000–$145,000 / yearBixal is a consulting company headquartered in Fairfax, VA, working alongside governments and organizations to help them deliver better services and experiences to the communities they serve. Hands-on experience building and maintaining delivery pipelines, infrastructure automation, and shared platform services for high-availability systems.
NewSenior AI Engineer US Citizens with active TS/SCI clearance required LTC Solutions LLCSenior AI Engineer US Citizens with active TS/SCI clearance requiredWashington, DCThe Senior AI Engineer serves as the principal contractor technical lead for advanced analytics supporting LOG IT data, integrating artificial intelligence frameworks, simulation models, optimization methodologies, and operations research techniques to evaluate GPN throughput, asset distribution, network performance, and future operational scenarios. The Senior AI Engineer / Research Analyst provides senior-level artificial intelligence, machine learning, predictive analytics, and operations research support to Headquarters Marine Corps (HQMC), Installations and Logistics (I&L), and the Global Positioning Network (GPN) Program.
NewSenior Quality Engineer Antenna Research Associates IncSenior Quality EngineerLaurel, MDARA is a leading C5ISR company that designs, manufactures, tests and installs innovative technologies that provide the national security community with unparalleled situational awareness, threat detection, and communications capabilities.\r\nOur disruptive, integrated solutions, assemblies and subsystems rise to the challenging demands of discerning, mission-critical customers.\r\nWe leverage our capabilities to meet and exceed the requirements of our customers and empower them to remain ahead of evolving threats and complexities in a dynamic security landscape. This role involves developing and implementing quality control systems, conducting inspections and audits, analyzing data to identify trends and areas for improvement, and collaborating with cross-functional teams to drive continuous improvement initiatives.
Senior Systems Engineer LeidosSenior Systems EngineerLaurel, MD$131,300–$237,350This may include decomposing features into workable stories, prioritizing or reprioritizing items in the backlog for upcoming sprints, refining acceptance criteria and complexity estimates or removing tickets that are no longer relevant. Leidos has an exciting opening for you, as our next TS/SCI cleared Senior Systems Engineer, to play a critical role with design, engineering, development and deployment of software supporting the DIA-NMEC (National Media Exploitation Center) DOMEX Technology Platform (DTP).
NewMechanical Engineer ActalentMechanical EngineerGreenway, VA$50–$67 / hourThe team designs and builds customizable shipping containers used to transport advanced products such as rocket components and small vehicles for major integrators in the aerospace and defense ecosystem. The environment is highly collaborative and project-driven, with frequent interaction across engineering and manufacturing functions and a strong focus on delivering robust, production-ready designs.