Principal Engineer, Advanced Thermal Modeling Baltimore Aircoil Company, Inc.Principal Engineer, Advanced Thermal ModelingJessup, MD$108,200–$185,200 / yearPart timeThe Global Advanced Digital Engineering team is Baltimore Aircoil Company’s (BAC) engine, combining domain SME, software, and automation expertise to build modular, scalable, and reusable engineering capability, including models, methods, tools, CAD and simulation environments, workflows, and digital architectures that improve speed, quality, and consistency of engineering outcomes across BAC’s products, applications, and digital ecosystems. The role spans unit-level physics, system-level performance, and cost-of-ownership modeling, with accountability for modeling strategy, architecture, and delivery through direct contribution and team execution, and translates thermodynamic and heat transfer expertise into scalable modeling frameworks, simulation tools, and validated methods.
Spacecraft GNC Integration & Test Engineer Quantum SpaceSpacecraft GNC Integration & Test EngineerRockville, Maryland$130,000–$180,000 / yearPlan and execute GNC hardware characterization and calibration activities, including inertial sensor characterization (Allan variance, bias instability, and angular random walk), sensor alignment, timing synchronization and phasing, and spacecraft magnetic characterization campaigns. Analyze spacecraft telemetry and test data to identify root cause, recommend corrective actions, and improve GNC subsystem performance throughout integration, environmental test, and flight operations.
Senior Engineer - Energetics Processing ERG GroupSenior Engineer - Energetics ProcessingIndian Head, MD$150,000–$200,000 / yearPlan and execute Preliminary Hazard Analyses (PHAs), Process Hazard Analyses (PrHAs), Job Hazard Analyses (JHAs), Layer of Protection Analyses (LOPAs), Failure Mode and Effect Analyses (FMEAs), System Hazard Analyses (SHAs), Quantitative Risk Assessments (QRAs), and Operating and Support Hazards Analyses (O&SHAs), and other hazard analysis and risk assessment techniques. Provide other on-site support as needed, including participating in various technical meetings; drafting meeting minutes; performing reviews of technical information, calculations, and previously completed analyses; and performing plant inspections or audits.
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.
Engineer Building MedStar HealthEngineer BuildingClinton, Maryland$31.28–$56.39 / hourPer diemAdditional certification in one or more of the following: electrical mechanical HVAC and refrigeration systems process controls mechanical power transmissions painting plumbing carpentry or engine repair. Inspects building systems including fire alarms HVAC and plumbing to ensure operation of equipment is within design capabilities and achieves environmental conditions prescribed by client.
Systems Engineer - Modeling & Simulation NoblisSystems Engineer - Modeling & SimulationFt Belvoir, Virginia$176,800–$276,250 / yearFull timeCompensation at Noblis is determined by various factors, including but not limited to, the combination of education, certifications, knowledge, skills, competencies, and experience, internal and external equity, location, clearance level, as well as contract-specific affordability, organizational requirements and applicable employment laws. In this role, you will serve as a subject matter expert contributing to the full systems engineering lifecycle, driving technical rigor across analyses of alternatives, trade studies, and predictive capability assessments.
Jr. Rocket Propulsion Engineer Advanced Technology and Research CorporationJr. Rocket Propulsion EngineerIndian Head, MD$86,000–$101,000 / yearPRINCIPAL DUTIES AND RESPONSIBILITIES: The successful applicant will join ATR's Engineering Services Division, working as an entry level Engineer at the Naval Surface Warfare Center, Indian Head Division, Indian Head, MD. Based in Maryland and incorporated in 1973, ATR is an equal-opportunity engineering company with a solid reputation in various engineering disciplines for the government and Fortune 500 commercial customers.
Chief Engineer (FDIC) EMCOR Government Services, Inc.Chief Engineer (FDIC)Arlington, VirginiaFull timeInstall, operate, maintain, inspect, adjust and repair building equipment such as chillers, air handlers, cooling towers, fans, pumps, motors, drives, filters, plumbing fixtures, induction units, VAV boxes, building control systems, lighting control systems, fire alarm and fire suppression systems, dampers, meters, gauges, actuators, and related equipment. When military bases, national security agencies, federal buildings, healthcare facilities, and leading commercial clients in Washington D.C and across the nation need superior facility support services, we answer the call.
Aerospace Software Engineer/Developer Johns Hopkins Applied Physics LaboratoryAerospace Software Engineer/DeveloperLaurel, MarylandFull timeWe are seeking a software engineer/developer to help us develop and translate algorithms, concepts and approaches for the mission planning, fire control and guidance of missile systems to flight-ready software. in Aerospace, Mechanical, or Electrical Engineering; Computer Science; applied mathematics; or related technical field with relevant experience in modeling and simulation of flight systems.
Lethality Modeling & Simulation Engineer Johns Hopkins Applied Physics LaboratoryLethality Modeling & Simulation EngineerLaurel, 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. The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges.
NewEnvironmental Engineer NoblisEnvironmental EngineerBethesda, Maryland$86,800–$135,625 / yearFull timeThe Senior DEA/NATO Engineer will provide program management services, technical support, and assistance in program coordination within and outside the Navy for NATO, Data Exchange Agreements (DEA), and International Maritime Organization (IMO) activities. Compensation at Noblis is determined by various factors, including but not limited to, the combination of education, certifications, knowledge, skills, competencies, and experience, internal and external equity, location, clearance level, as well as contract-specific affordability, organizational requirements and applicable employment laws.
Senior GNC Engineer - Air Platform / Missile Systems ProtingentSenior GNC Engineer - Air Platform / Missile SystemsCrystal City, VA$165,000–$185,000 / yearConduct Hardware in the Loop (HWIL) testing, bench testing, and flight test algorithm validation; analyze test telemetry and generate performance assessments. Minimum 8 years of direct experience developing GNC algorithms for missiles, air platforms, or other advanced aerospace systems.
Travel Commissioning Engineer 3 - Tysons, VA M.C. Dean, IncTravel Commissioning Engineer 3 - Tysons, VATysons , Virginia$104,240–$130,300 / yearFull timeThe Commissioning Engineer team is responsible for performing final testing, startup, and commissioning of low and medium voltage electrical distribution equipment, including breakers, transformers, switches, switchgear, relays, and motor control centers, as well as other electrical apparatus both in the field and in a manufacturing environment. Responsibilities: Assists senior Commissioning Specialists and Managers in coordinating, executing, and reviewing MEP commissioning deliverables, including mechanical, electrical, plumbing, fire protection, life safety, and building automation systems.
Mechanisms Flight Engineer AST SpaceMobileMechanisms Flight EngineerLanham, MDThe role owns the execution and validation of flight operations procedures for deployment and actuation events, including commanding and monitoring mechanisms, validating timelines and mode transitions, rehearsing commissioning activities, and reproducing on-orbit conditions in the lab to support anomaly investigation and resolution. Minimum 3+ years of hands-on experience in spacecraft integration and test, flight hardware operations, mission operations, or related engineering disciplines involving mechanism control systems, actuators, or complex electromechanical systems.
Nuclear Systems Engineer Ocean AtomicsNuclear Systems EngineerBethesda, MarylandAs Nuclear Systems Engineer, you work on the system-level design of the reactor systems that power our maritime nuclear plant: core, primary loop, power conversion, shielding, auxiliaries, and instrumentation & controls, from early concept studies through integrated design and handoff to build. You resolve the interfaces between nuclear, thermal-fluids, mechanical, structural, and controls disciplines, and keep the design compatible with the regulatory pathway and the constraints of the host vessel: mass, volume, motion, shock, and the marine environment.
Energy Engineer Delaware Nation IndustriesEnergy EngineerArlington, VAIn support of the core responsibilities of the division, the following requirements, working conditions, and administrative duties apply generally to all personnel under this task order: Project Documentation: Review technical submittals, prepare reports, draft meeting notes, and provide technical input supporting OBO statements of work, criteria, specifications, cost estimates, contract support materials, and other documents as directed by the program office. As the single real property manager for the planning, acquisition, design, construction, operations, maintenance, and disposal of U.S. government's diplomatic and consular properties overseas, OBO's portfolio spans over 280 worldwide missions and over 80,000,000 square feet of functioning property.
Lead Systems Engineer - RF Systems LeidosLead Systems Engineer - RF SystemsLaurel, MarylandAs a Lead Systems Engineer – RF Systems, you will bring extensive engineering judgment to that challenge—helping ensure requirements remain traceable, interfaces are fully defined, technical risks are understood, system baselines remain controlled, engineering decisions consider lifecycle impacts, and solutions can be verified against mission requirements. You will collaborate with Government stakeholders, developers, engineers, program personnel, and senior leaders to resolve technical issues, evaluate alternatives, manage interfaces and requirements, and guide engineering activities supporting mission delivery.
Commissioning Field Engineer 3 - 100% Travel M.C. Dean, IncCommissioning Field Engineer 3 - 100% TravelDistrict of Columbia, Washington, DC$39.45–$63.11 / hourFull timeOverview: The Commissioning Engineer team is responsible for performing final testing, startup, and commissioning of low and medium voltage electrical distribution equipment, including breakers, transformers, switches, switchgear, relays, and motor control centers, as well as other electrical apparatus both in the field and in a manufacturing environment. Qualifications: Applicants selected must have minimum 10+ years of relevant electrical experience with HS diploma or GED OR associate's degree with minimum of 8+ years or relevant electrical experience OR Bachelor’s degree with minimum 5+ years of relevant electrical experience.
Stationary Operations Engineer 1- Washington, D.C. M.C. Dean, IncStationary Operations Engineer 1- Washington, D.C.District of Columbia, Washington, DC$36.31–$45.38 / hourFull timeDuties involve observing and interpreting readings on gauges, meters, and charts which register various aspects of the system’s operation, adjusting controls to ensure the safe and efficient operation of the system and to meet the demands for the service provided, and recording logs for various aspects of the system’s operation, maintaining equipment of the system in good working order. Applicants selected for this position shall possess demonstrated experience in the operation, monitoring, maintenance, and troubleshooting of central utility plant and institutional mechanical systems supporting mission critical, government, commercial high-rise, healthcare, laboratory, industrial, campus, or other complex facilities environments.
Data Center Facilities Engineer, (Clearance Required TS/SCI with Poly) Manassas, VA Onsite Hewlett Packard EnterpriseData Center Facilities Engineer, (Clearance Required TS/SCI with Poly) Manassas, VA OnsiteChantilly, VirginiaPlease note that Hewlett Packard Enterprise (HPE), its direct and indirect subsidiaries and affiliated companies, and its authorized recruitment agencies/vendors will never charge a candidate a registration fee, hiring fee, or any other fee in connection with its recruitment and hiring process. We help companies connect, protect, analyze, and act on their data and applications wherever they live, from edge to cloud, so they can turn insights into outcomes at the speed required to thrive in today’s complex world.