Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Mechanical Engineer Jobs

$100k - $135k

ClearanceJobs

Mechanical Engineer

The Sensors Division at STR excels at applied research and advanced technology development of impactful sensor system technology to address warfighter and intelligence needs. Our contributions are the culmination of modeling, development, integration, and test and evaluation of new capabilities, with validation testing at each step of development. The Ocean Technology and Acoustic Systems (OTAS) Group within the Sensors Division executes a broad portfolio of undersea technologies to impact sensing capabilities in contested areas. The Group develops signature exploitations, implements advanced algorithms and processing, and creates new sensing and payload technologies for critical undersea missions. The technologies can be stand-alone or for platforms such as AUVs. STR is seeking a Mechanical Engineer with experience in the design, fabrication, integration, and testing of subsystems or payloads for unmanned platforms with emphasis on undersea sensors, payloads and vehicles. You will work with teams to realize challenging undersea applications requiring novel and complex engineering solutions. These solutions can only be accomplished by working across multidisciplinary teams to implement and demonstrate them in specific warfighter and intelligence applications.

What you will do:

  • Develop technical solutions for mechanical deployable payloads and vehicles, taking into account their complex interactions with harsh maritime environments. This work requires teamwork in key areas of design and simulation, fabrication, and validation testing of mechanical payloads and systems in underwater environments
  • Collaborate in all stages of undersea systems testing, including developing comprehensive test plans, building test infrastructure, and supporting teams both in the laboratory and at-sea to mature key technology and prototypes
  • Provide regular communication with internal leadership and teammates while providing key input to reports and presentations for customer reviews and engagement

Who you are:

  • Ability to obtain and maintain a Top Secret security clearance, for which U.S. citizenship is needed by the U.S. Government
  • BS with 2+ years relevant experience or a MS in Mechanical Engineering, Ocean Engineering, Physics, or related fields
  • Demonstrated background in the design, modeling, fabrication, integration, and validation of mechanical systems in support of first-concept undersea sensor payloads and vehicles
  • Familiarity with computer-aided CAD/CAM design tools such as COMSOL, ANSYS, SolidWorks and tools to design components and systems
  • Proficiency in thermal modeling, finite element analysis, computational fluid dynamics, or other multi-physics modeling and simulation required to quantify system performance in its operational environment
  • Experience combining multiple external vendors and fabricators with in-house fabrication and integration resources to arrive at complete systems that meet functional objectives
  • Experience with materials and designs to survive harsh conditions including temperature and overpressure Ability to design and implement testing methods and apparatus to quantify mechanical functionality, performance, and readiness against metrics
  • Adherence to best practices for development and testing using system engineering processes that allow for continuous risk-reduction and evolution of functionality
  • Ability to prepare and deliver briefings to customers, program managers, and senior management with messages appropriately tailored to the audience and purpose

Even Better:

  • Strong background in working with teams to field ocean-going unmanned systems and payloads.

Pay Information Full-Time Salary Range: $100,000-135,000 The salary range listed is based on external market data. Offers are based on factors, such as but not limited to, the candidate's experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions.

Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the Mechanical Engineer Jobs in Arlington, VA vacancy
  • $90k - $125k

     ...Control Systems Engineer Our team is growing and we are seeking a Control Systems Engineer to join our federal team supporting the...  ...efficiency and sustainability needs, primarily related to the HVAC Mechanical and HVAC Controls (Building Automation Systems). At Johnson... 
    Suggested
    Worldwide
    Monday to Friday

    Johnson Controls International Plc

    Arlington, VA
    1 day ago
  • PRO-Telligent, A Tetra Tech Company, needs a Mechanical Engineer in Ashgabat, Turkmenistan for construction of New US Embassy Compound (NEC) with State Department Bureau of Overseas Buildings Operations (OBO). Requires a US Govt. Secret Security Clearance. The Project17... 
    Suggested
    For contractors
    Work at office
    Local area
    Worldwide
    Overseas

    Tetra Tech

    Washington DC
    2 days ago
  •  ...?Watch Our Story:' We believe building engineering is more than systems and structures, it’...  ...and human experience. We bring together mechanical, electrical, structural, and civil engineering...  ...built environment. This isn’t just a job, it’s a chance to lead innovation,... 
    Suggested
    Contract work

    HDR

    Arlington, VA
    3 days ago
  • $89k - $140k

     ...HVAC Controls and Building Automation System (BAS) pre-sales engineering efforts, helping shape solutions during the design and proposal...  ...evaluate vendor proposals, and support scope definition for mechanical, electrical, and other subcontracted work. Interpret... 
    Suggested
    Work experience placement
    For subcontractor
    Remote work
    Flexible hours

    Johnson Controls

    Washington DC
    1 day ago
  • $120.58k

     ...This is an Excepted Service position and does not require or confer Civil Service Competitive StatusWork type: Permanent, Full TimeRelocation: FalsePosition ID: CPP-2026-106Document ID: 863228900Grade: GS 13Job category: Mechanical Engineering (0830)Hiring path: public
    Suggested
    Permanent employment

    United States Government

    Washington DC
    2 days ago
  • $86.8k - $198k

    Mechanical EngineerThe Opportunity:Provide mechanical engineering review, coordination, and oversight for operations, maintenance, repair, and construction work and oversee and coordinate activities with trade shops, including prioritizing work, reviewing ongoing projects... 
    Full time
    Contract work
    Part time
    For contractors
    Work at office
    Local area
    Remote work

    Booz Allen Hamilton

    McLean, VA
    2 days ago
  • $143.91k

     ...to 09/11/2026Schedule: Full-timeWork type: Multiple Appointment TypesRelocation: FalsePosition ID: DLADS-26-13037244-MPDocument ID: 881146300Grade: GS 14Job category: Mechanical Engineering (0830)Hiring path: fed-internal-search, fed-transition, vet, mspouse, disability

    United States Government

    Arlington, VA
    3 days ago
  • $107.3k - $155.5k

     ...integrated design practice. Our architects, engineers, interior designers, consultants,...  ...Buildings team is looking for a Project Mechanical Engineer with a focus in HVAC design. You...  ...Basis of Design.Development of project job specific discipline specifications independently... 
    Full time
    Temporary work
    Part time
    For contractors
    For subcontractor
    Casual work
    Work at office
    Local area
    Flexible hours

    Stantec

    Washington DC
    1 day ago
  • $103.8k - $218.1k

    Job Title: Mechanical EngineerJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee...  ...supporting National Security Initiatives as a Mechanical Engineer. Come grow your career at CACI, your potential is limitless... 
    Contract work
    For contractors
    Work experience placement
    Local area
    Flexible hours

    CACI International

    McLean, VA
    2 days ago
  •  ...Compliance, Business Process, IT Effectiveness, Engineering, Environmental, Sustainability, and...  ...at DescriptionProSidian Seeks a Mechanical Engineer | Technical Due Diligence & Engineering...  ...Utilities) Sector Clients such as DOE.JOB OVERVIEWProvide services and support as... 
    Full time
    Contract work
    Temporary work
    For contractors
    Work at office
    Remote work
    Flexible hours

    Prosidian Consultng

    Washington DC
    1 day ago
  • $84.7k - $144.43k

     ...Senior Mechanical Controls Engineer - Mission Critical DLR Group is an integrated design firm with a promise to elevate the human experience through design. This fuels the work we do around the world and inspires our mission to improve the lives of our clients, our... 
    Local area

    DLR Group

    Washington DC
    2 days ago
  • $105k - $123k

    ARA is seeking a Staff Mechanical Engineer to support the design of equipment, tooling, and equipment interfaces for energetics chemical manufacturing...  ...: Relevant mechanical design experience with a Bachelors.Job SummaryRequisition Number: STAFF010068Job Category:... 
    Full time

    Applied Research Associates

    Arlington, VA
    2 days ago
  •  ...The Opportunity Black & Veatch is seeking a Mechanical HVAC / Plumbing Engineer to provide design for a variety of buildings in the Federal market...  ...offered after the first 90 days of employment based upon manager discretion, job performance and work assignments.... 
    For contractors
    Work experience placement
    Work at office
    Flexible hours

    Black & Veatch Family of Companies

    Arlington, VA
    11 days ago
  •  ...in your community, but around the world.In the role of Senior Mechanical Engineer (Pipe Stress), we'll count on you to:Perform pipe stress...  ...group has an executive sponsor and is open to all employees.Job Field: Building EngineeringSchedule: Full-timeEmployee Status... 
    Contract work
    Work at office

    HDR

    Arlington, VA
    1 day ago
  •  ...global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and...  ...purpose to deliver a better world. Join us.Job DescriptionAECOM is seeking a creative and highly talented Senior Mechanical Engineer for immediate employment in our... 
    Contract work
    For contractors
    Work at office
    Local area
    Immediate start
    Remote work
    Worldwide
    Flexible hours

    AECOM

    Arlington, VA
    2 days ago
  • $126.4k - $189.6k

     ...integrated design practice. Our architects, engineers, interior designers, consultants,...  ...Your OpportunityWe are seeking a Senior Mechanical Engineer to help lead exciting and complex...  ...promotion, compensation, fringe benefits, job training, terminations or any other... 
    Full time
    Contract work
    Temporary work
    Part time
    For contractors
    Casual work
    Work at office
    Local area
    Flexible hours

    Stantec

    Washington DC
    1 day ago
  • $90k - $120k

     ...Buro Happold has an exciting opportunity for a talented Senior Mechanical Engineer to join our hybrid team in Washington, DC! As a Senior...  ...client, other professionals and suppliers.Set up and manage job/project administrative systems, including planning and monitoring... 
    Permanent employment
    Contract work
    Summer work
    Immediate start
    Flexible hours

    BuroHappold Engineering

    Washington DC
    3 days ago
  •  ...construction, and major equipment repairs; engineering, construction, and operations support;...  ...technical security services. As the Mechanical Engineer , you will be designing,...  ...paced, classified environment. ESSENTIAL JOB FUNCTIONS: Design, develop, and... 
    Contract work

    Intrepid USA

    McLean, VA
    4 days ago
  •  ...Job Title: Mechanical EngineerJob Description This Mechanical Engineer role focuses on HVAC design for large commercial buildings, including office spaces, multifamily developments, and commercial interiors. You will perform heating and cooling load calculations, create... 
    Contract work
    Temporary work
    Work at office
    Remote work
    3 days per week

    Actalent

    Arlington, VA
    3 days ago
  • $107.3k - $155.5k

     ...integrated design practice. Our architects, engineers, interior designers, consultants,...  ...Buildings team is looking for a Project Mechanical Engineer with a focus in HVAC design. You...  ...Basis of Design. Development of project job specific discipline specifications... 
    Full time
    Temporary work
    Part time
    For contractors
    For subcontractor
    Casual work
    Work at office
    Local area
    Flexible hours

    Stantec

    Washington DC
    2 days ago
  •  ...organization providing a board range of facilities engineering and support services. The incumbent provides mechanical engineering advice, guidance, and direction to...  ...and significant experience as it relates to this job announcement. Be clear and specific when describing... 
    For contractors
    Internship
    Relocation

    National Gallery of Art

    Washington DC
    3 days ago
  •  ...Mechanical Engineer Duties As a Mechanical Engineer you will be responsible for the following duties: # Lead and manage complex engineering, construction, and facility projects from planning through execution, coordinating design, construction, analysis, and related... 
    Contract work
    For contractors

    US Department of War

    Arlington, VA
    2 days ago
  • $100k - $135k

     ...Mechanical Engineer The Sensors Division at STR excels at applied research and advanced technology development of impactful sensor system technology to address warfighter and intelligence needs. Our contributions are the culmination of modeling, development, integration... 
    Full time
    Local area
    Night shift

    Science & Technology Research (STR)

    Arlington, VA
    2 days ago
  • $75k - $90k

     ...Mechanical Engineer CMTA, a Legence company, is one of the fastest growing engineering firms in the U.S., with nationally recognized expertise...  ...provides unparalleled growth and career opportunities. Job Summary: CMTA, a Legence company, is looking for an entry-level... 
    Contract work

    Black Bear Energy Inc.

    Washington DC
    2 days ago
  •  ...Mechanical Engineer At Blueprint Automation, we design, develop and manufacture case packers and tray packing solutions for flexible and other tough-to-handle packages such as doypacks, pillow bags, and four-sided sealed bags. Built for around-the-clock operation, these... 
    Worldwide
    Flexible hours

    BluePrint Automation (BPA)

    Arlington, VA
    8 hours ago
  •  ...Join a Team Where Engineering Excellence Drives Opportunity At Affiliated Engineers, Inc. (AEI) , we bring together expertise and...  ..., and your work helps shape a brighter future. As a Mechanical Engineer II in our Washington, D.C. office, you will help... 
    Work at office
    Flexible hours

    SPINX Company

    Washington DC
    3 days ago
  •  ...Mechanical Engineer Job Location: Washington, DC Eligibility/Clearance: Secret or Interim Secret Responsibilities Review, verify, and update mechanical infrastructure data within SMS Builder, including HVAC equipment, piping systems, plumbing components, pumps... 
    Interim role

    ATR Inc

    Washington DC
    4 days ago
  •  ...Mechanical Design Engineer III Working under limited supervision, the Mechanical Design Engineer III will design, develop, test, implement, and...  ...working indoors in environmentally controlled conditions. Job tasks are performed in close physical proximity to other people... 
    Permanent employment
    Full time

    Oceaneering

    Washington DC
    1 day ago
  • $120k - $150k

     ...Mechanical Engineer This role focuses on the mechanical design of large commercial buildings, with a strong emphasis on data centers. The...  ...quality mechanical designs for complex commercial facilities. Job Type & Location This is a Permanent position based out of... 
    Permanent employment
    Temporary work
    For subcontractor
    Work at office
    Flexible hours

    Actalent

    McLean, VA
    8 hours ago
  • $112k - $190k

     ...TSC is seeking a highly motivated and skilled Mechanical Design Engineer to support our customer in Washington, DC. The ideal candidate will be a hands-on engineer with a strong background in mechanical systems and equipment, assemblies and product development. This... 
    Contract work
    For contractors
    Work experience placement
    For subcontractor
    Local area
    Relocation package
    Flexible hours

    Technology Service Corporation

    Washington DC
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Mechanical Engineer Jobs. Be the first to apply!