Mechanical Engineer II (VA) Sparton.Mechanical Engineer II (VA)Fairfax, VirginiaWe serve multiple government and commercial customers worldwide with wide-area persistent surveillance solutions that are critical to the success of their missions in national defense, public safety and border security, and humanitarian assistance. Assist in the creation and management of project deliverables, including, but not limited to detailed project plans, project schedules, resource plans, risk assessment/issue tracking, and status reports for customer and Logos management.
Mechanical Engineer ParsonsMechanical EngineerCentreville, VirginiaSystems should include: HVAC systems, chillers, boilers, steam systems, cooling water systems, pumps, fans, compressors, cooling towers, plumbing systems, fire suppression systems, and other building services related systems. We take special pride in projects and solutions that improve communities as well as people’s quality of life by promoting economic growth, enhancing mobility, and increasing sustainability and resiliency.
Senior Mechanical Engineer Kimmel & AssociatesSenior Mechanical EngineerWashington, DCThrough innovative HVAC engineering, electrical upgrades, building automation systems, preventative maintenance, and energy optimization, the company helps commercial and institutional clients reduce operating costs while improving building performance and environmental impact. This is an excellent opportunity for a technically strong engineer who enjoys solving challenging engineering problems, mentoring junior staff, and collaborating with multidisciplinary teams throughout the entire project lifecycle—from conceptual design through construction.
Senior Mechanical Engineer MeadeSenior Mechanical EngineerAshburn, VA$130,100–$167,600 / yearMeade is a full-service design firm specializing in innovative and cost-effective engineering solutions for data centers, cloud providers, and large-scale construction projects. Our team of expert engineers, designers, and consultants is dedicated to delivering high-quality, reliable, and sustainable solutions that drive the industry forward.
Mechanical Engineer Intern/Co-Op Fall 2026 LegenceMechanical Engineer Intern/Co-Op Fall 2026Arlington, VARequirements:• Pursuing a Bachelor of Mechanical Engineering or Architectural Engineering, preferably a sophomore (2nd year), or junior (3rd year),• Strong interest in Building Systems Mechanical Engineering,• AutoCAD and REVIT experience preferred,• Strong interpersonal and communication skills,• Proficiency with Microsoft Word and Excel,• Ability to work both independently and with a team,• Ability to work full time in our office throughout the co-op term,• Ability to travel locally for job site inspections, field work, etc. Job Functions: (may include but are not limited to)• Produce detailed layout and equipment details of HVAC systems,• Produce one-line diagrams/schematics,• Assist the design team in the process of assembling organized sets of drawings,• May assist in the data collection and/or field verification, and• Work in conjunction with designers and engineers to help develop all aspects of a project.
Mechanical Engineer Intern/Co-Op Spring 2027 LegenceMechanical Engineer Intern/Co-Op Spring 2027Arlington, VAJob Functions: (may include but are not limited to)• Produce detailed layout and equipment details of HVAC systems• Produce one-line diagrams/schematics• Assist the design team in the process of assembling organized sets of drawings• May assist in the data collection and/or field verification• Work in conjunction with designers and engineers to help develop all aspects of a projectRequirements:• Pursuing a Bachelor of Mechanical Engineering or Architectural Engineering, preferably a sophomore (2nd year), or junior (3rd year)• Strong interest in Building Systems Mechanical Engineering• AutoCAD and REVIT experience preferred• Strong interpersonal and communication skills• Proficiency with Microsoft Word and Excel• Ability to work both independently and with a team• Ability to work full time in our office throughout the co-op term• Ability to travel locally for job site inspections, field work, etc. For college students interested in engineering design for the built environment, CMTA has a robust co-op program for students pursuing a degree in Mechanical Engineering, Electrical Engineering, and Architectural Engineering.
Mechanical Engineer Parsons Commercial Technology Group Inc.Mechanical EngineerColumbia, MD$88,400–$154,700 / yearParsons' extensive experience in the cleared space, combined with your technical knowledge, will propel your career forward with an opportunity to work in an exciting unconventional access mission where our teams are focused on advancing capability and technical support for cyber operations. What Desired Skills You'll Bring: Experience in rugged chassis enclosure design for electronics hardware, including mil-spec connectors, coatings, and hardware for MIL-810 applications.
NewMedical Device Mechanical Engineer Tunnell Government ServicesMedical Device Mechanical EngineerWashington, DCThe successful candidate will provide scientific and engineering consultation to OPEQ reviewers evaluating premarket submissions, including 510(k)s, PMAs, De Novo requests, IDEs, EUAs, combination products, and Pre-Submissions, as applicable. The candidate will apply expertise in mechanical engineering, computational modeling, testing, materials, and risk assessment to evaluate device design, structural integrity, mechanical performance, durability, and potential failure modes.
Telescope Opto-Mechanical Engineer LV8D SolutionsTelescope Opto-Mechanical EngineerChantilly, VAThe successful candidate will support the maturation of advanced telescope technologies, manage cross-vendor interface coordination efforts, and contribute to the development of common engineering approaches that enhance interchangeability across future spacecraft builds. LV8D Solutions is an elite Systems Engineering and Technical Advisory (SETA) company that delivers advanced systems engineering, integration, acquisition, mission operations, network communications, and cybersecurity support to our defense and intelligence customers.
Mechanical Engineer Intern/Co-Op Summer 2027 LegenceMechanical Engineer Intern/Co-Op Summer 2027Arlington, VAJob Functions: (may include but are not limited to)• Produce detailed layout and equipment details of HVAC systems• Produce one-line diagrams/schematics• Assist the design team in the process of assembling organized sets of drawings• May assist in the data collection and/or field verification• Work in conjunction with designers and engineers to help develop all aspects of a projectRequirements:• Pursuing a Bachelor of Mechanical Engineering or Architectural Engineering, preferably a sophomore (2nd year), or junior (3rd year)• Strong interest in Building Systems Mechanical Engineering• AutoCAD and REVIT experience preferred• Strong interpersonal and communication skills• Proficiency with Microsoft Word and Excel• Ability to work both independently and with a team• Ability to work full time in our office throughout the co-op term• Ability to travel locally for job site inspections, field work, etc. For college students interested in engineering design for the built environment, CMTA has a robust co-op program for students pursuing a degree in Mechanical Engineering, Electrical Engineering, and Architectural Engineering.
Senior Mechanical Engineer Whitman, Requardt and Associates, LLPSenior Mechanical EngineerFairfax, Virginia$160,000–$240,000 / yearFull timeAs a Senior Mechanical Engineer at Whitman, Requardt & Associates, LLP, you will play a pivotal role in the design and execution of mechanical engineering projects across various industries, including government, education, transportation, and commercial. Whitman, Requardt & Associates, LLP (WRA) is a leading multidisciplinary engineering and architectural firm committed to providing innovative and sustainable solutions to our clients' most complex challenges.
Mechanical Engineer (Secret Clearance Required) GCI IncMechanical Engineer (Secret Clearance Required)Chantilly, VAThe employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber Operations. This job frequently requires the individual use hands and fingers to operate, handle, or feel objects, tools, or controls in a light-production shop facility with professional manufacturing equipment.
Automation Engineer I (Mechanical) Ion Storage SystemsAutomation Engineer I (Mechanical)Beltsville, MDFull timeResponsibilities: Design, build, and iterate on mechanical equipment, tooling, and fixtures to support prototype cell fabricationTroubleshoot equipment and process issues on the line, working hands-on to identify root causes and implement fixesSupport installation, setup, and debugging of new equipmentMeasure and evaluate the performance of designs and process changes against yield, speed, and reliability targetsCollaborate with cell engineers and technicians to translate process requirements into mechanical solutionsMaintain detailed documentation for all phases of work Experience and Qualifications:B.S. or M.S. in Mechanical Engineering or related field0-3 years of work experience (post B.S.)Experience in 3D CAD for design of equipment / tooling / fixtures / assembly aidsExperience in measurement of outcomes of your designsA passion for creative problem solvingPreferred: Machining experience (manual or CNC mill/lathe) sufficient to fabricate and modify prototype parts, tooling, and fixtures to specified tolerancesExperience with GD&T and precision fit/tolerance analysisExposure to automation controls (PLCs, sensors, actuators) or willingness to learn Physical Demands and Working Conditions:Work onsite at ION's Beltsville, MD facility; this is a hands-on and collaborative role requiring regular presenceWear personal protective equipment including, but not limited to, a lab coat, gloves, safety glasses, and safety-toe shoes. Automation Engineer I (Mechanical) - Cell EngineeringAs part of our Cell Engineering group, you'll use your background in mechanical engineering and technical creativity towards the development and optimization of first-of-its-kind prototyping line for ION's solid state cells and anodes.
Mechanical Design Engineer III/IV Artis, LLCMechanical Design Engineer III/IVHerndon, VAThis advanced position will also require the application of your experience across a wide range of design challenges including designing for a variety of manufacturing methods, thorough analysis of designs before fabrication, validation and failure analysis of produced parts and assemblies, and production documentation preparation and review. You will develop designs from concept to production, with hands-on involvement to oversee parts fabrication, system assembly and validation testing along the way.
Senior Mechanical Engineer - Hybrid Washington, DC ParsonsSenior Mechanical Engineer - Hybrid Washington, DCCentreville, VirginiaDemonstrate a range of technical capabilities with experience in Mechanical Engineering and design, and development of contract documents (design reports, analysis reports, calculations, drawings, specifications, etc.). We take special pride in projects and solutions that improve communities as well as people’s quality of life by promoting economic growth, enhancing mobility, and increasing sustainability and resiliency.
Mechanical Project Designer | Germantown, MD IMEG ConsultantsMechanical Project Designer | Germantown, MDGermantown, MarylandIn this role, you will lead design efforts as a project manager or lead engineer for low to moderate complexity projects, collaborate with senior staff on larger and high complexity projects, and provide engineering solutions and advice to clients. Collaborate with a seasoned multidisciplinary team of Professional Engineers, LEED Accredited Professionals, energy modeling experts, CFD specialists, lighting designers, commissioning professionals, and healthcare facility design experts.
Senior Mechanical Design Engineer KBRSenior Mechanical Design EngineerWashington, DC$150,000–$190,000 / yearKBR is seeking a Senior Mechanical Design Engineer with strong CAD proficiency and leadership experience to join our growing team of engineers supporting cutting-edge defense programs. KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities.
Mechanical Systems Engineer CACIMechanical Systems EngineerSterling, Virginia$72,700–$149,200 / yearDemonstrated experience with requirements development, decomposition, and design support (SRR, PDR, CDR, TRR).• Experience with mechanical design and analysis tools (SolidWorks, CAD).• Strong written and verbal communication skills, including participation in technical discussions and design reviews. Perform development‑focused activities such as requirements decomposition, interface definition, and support for TRR, SRR, PDR, and CDR.• Support quality, reliability, and safety assessments—including FMECA, FRACAS, and hazard analysis—ensuring issues are identified, tracked, and resolved.•
Senior Mechanical Packaging Engineer Tcom, L.P.Senior Mechanical Packaging EngineerColumbia, Maryland$129,373–$180,760 / yearTCOM is seeking a Senior Mechanical Packaging Engineer Lead to work on and lead a team of mechanical engineers on the design, production support and test of electrical/electronic systems for lighter-than-air vehicles and their ground support facilities. The individual will be responsible for leading a team of mechanical engineers in the design of lightweight electrical assemblies in space restricted enclosures for use in avionics applications where the assemblies are exposed to the atmosphere and operate in high EMI environments.
Junior Mechanical Engineer Advanced Technology and Research CorporationJunior Mechanical EngineerBethesda, MD$86,000–$101,000 / yearPRINCIPAL DUTIES & RESPONSIBILITIES: The successful applicant will join ATR's Engineering Services Division, working as a team member at our government client site, located at the Naval Surface Warfare Center, Carderock, MD, involved in development and execution of the US Navy’s Underwater Electromagnetic (UEM) Signatures Silencing program as a Test and Evaluation engineer. 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.