• Senior Mechanical Engineer

    Jacobs (Washington, DC)
    …power, mechanical systems, fire protection, construction, etc.) * Professional Engineer (PE) Registration desired * Active Top Secret clearance, ability ... evolve, grow, and succeed - today and into tomorrow. The Mechanical Engineer will have essential multi-discipline team representation and be self-motivated, well… more
    Jacobs (10/10/25)
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  • Senior Mechanical Cx Engineer

    Veolia North America (Ashburn, VA)
    …across North America. **Job Description** **Position Purpose:** Senior Project Engineer - Performs & plans commissioning of mechanical systems. Must ... **Company Description** Veolia in North America is the top -ranked environmental company in the United States for three consecutive years, and the country's largest… more
    Veolia North America (11/21/25)
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  • Senior Navy Mechanical

    Cydecor, Inc. (Washington, DC)
    …commitment to Excellence, what separates us. Job Description: Cydecor is looking for a Senior Navy Mechanical Engineer to analyze UxV designs and tackle ... Here's what you need: + Bachelor's level degree in Mechanical Engineering. + 10 years of relevant experience +...+ Master's degree in an Engineering field + Professional Engineer (PE) Certification Security Clearance: Minimum: Interim or Active… more
    Cydecor, Inc. (11/10/25)
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  • Mechanical Engineer - Senior

    Sargent & Lundy (Elkridge, MD)
    …include, but are not limited to: + You will be responsible for leading the Mechanical Engineering design efforts for a team of junior and senior engineers and ... assignments that include investigating, troubleshooting, and solving a wide variety of mechanical engineering issues. + Act as the Mechanical team lead… more
    Sargent & Lundy (08/26/25)
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  • Senior Mechanical Engineer

    Leidos (Reston, VA)
    **Description** The Mission Solutions Business Area at Leidos is looking for a Mechanical Engineer to join our Reston, VA based team. The successful candidate ... + Model different aspects of a facility to include mechanical , electrical, and structural components within industry software packages...+ Candidate **must possess** an active TS/SCI, or a Top Secret clearance with a current SSBI, and be… more
    Leidos (09/26/25)
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  • Senior Mechanical Engineer 1…

    Sargent & Lundy (Elkridge, MD)
    Description This is a senior level mechanical engineering position that will provide you with a variety of interesting and challenging responsibilities. We are ... candidates with experience in the analysis, design, and licensing requirements of mechanical and nuclear systems and components for nuclear power plants. You will… more
    Sargent & Lundy (09/09/25)
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  • Facilities Mechanical Engineer

    Leidos (Chantilly, VA)
    **Description** ** Senior Mechanical Engineer ** Leidos is seeking a seasoned and innovative Senior Mechanical Engineer to lead the design, ... maintenance, and configuration management of complex building mechanical systems across a secure site. This role demands deep technical expertise, strategic vision,… more
    Leidos (10/27/25)
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  • Mechanical Engineer

    Leidos (Springfield, VA)
    **Description** **Leidos - Multi-Domain Solutions (MDS) Division** **Position: Junior Level Mechanical Engineer ** Leidos and its Multi-Domain Solutions (MDS) ... division are seeking a highly motivated **Junior Mechanical Engineer ** to support the planning, design,...offers the opportunity to work under the mentorship of senior engineers and contribute to system layout, equipment selection,… more
    Leidos (10/23/25)
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  • Mechanical Commissioner - Project…

    Veolia North America (Sterling, VA)
    …than 350 locations across North America. **Job Description** **Position Purpose:** Project Engineer - Performs commissioning of mechanical systems. Must be a ... information; executing daily field activities; maintaining project documentation; assisting the Senior Project Engineer ; and providing guidance to associate… more
    Veolia North America (11/22/25)
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  • Mechanical Engineer

    MPR Associates (Alexandria, VA)
    …engineering services and consulting firm. We have exciting opportunities for experienced mechanical engineers to join our team. If you are seeking a unique, ... of power and energy, federal services, and health and life sciences. We provide top -tier engineering services by focusing on first principles and relying on a team… more
    MPR Associates (10/14/25)
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  • Junior Mechanical Engineer

    Huntington Ingalls Industries (Alexandria, VA)
    …video: https://vimeo.com/732533072 Job Description HII is seeking an imaginative and adaptable Junior Mechanical Engineer that is on schedule to graduate in May ... our Alexandria, VA location. If you're eager to apply your foundational mechanical engineering knowledge to design and rapidly prototype tangible mission hardware… more
    Huntington Ingalls Industries (10/28/25)
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  • Mechanical Engineer

    Leidos (Chantilly, VA)
    **Description** ** Mechanical Engineer - Mission-Critical Facilities Design** Leidos is seeking a driven and detail-oriented Junior level Mechanical ... to support the planning, design, and analysis of mechanical systems-primarily Heating, Ventilation, and Air Conditioning (HVAC)-for secure, mission-critical… more
    Leidos (11/05/25)
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  • Project Engineer - Process…

    Stantec (Washington, DC)
    …Grow with us, H2O+U. Your Opportunity We are looking for a talented Project Engineer who wants to be part of a purpose-driven organization that's focused on helping ... water infrastructure life cycle. The role of a Project Engineer with our Water Team is a dynamic position...and schedules. - Evaluates, selects, specifies, and engineers process mechanical systems or products for a project. - Conducts… more
    Stantec (11/06/25)
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  • Subject Matter Expert (SME) - Professional…

    V2X (Washington, DC)
    …all agency employees. The Subject Matter Expert (SME) - Licensed Professional Engineer (PE) ( Mechanical , Electrical, Structural, Fire Protection, and/or Civil) ... must be highly qualified, possess an active Department of Defense (DoD) Top Secret level Security Clearance (minimum), and demonstrate commitment to ensuring safe,… more
    V2X (11/20/25)
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  • Mechanical Engineer Intern - Energy…

    Sargent & Lundy (Elkridge, MD)
    Description Relocation assistance is not provided for this position. + As a Mechanical Engineering Intern, you will be assigned to work on a project team and assist ... systems and components. + Working under the direction of senior engineers, this position will offer you the opportunity...opportunity to utilize and expand your academic background in Mechanical Engineering in one or more of the following… more
    Sargent & Lundy (10/02/25)
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  • Senior Submarine Structural Engineer

    Serco (Washington, DC)
    …our NAVSEA customers. Serco-NA has an opening for and immediately hiring a Senior Navy Structural Engineer supporting the Structures Systems Integration Team in ... email to: careers@serco-na.com . Click here to apply now (https://careers-sercous.icims.com/jobs/70991/ senior -submarine-structural- engineer /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834477830) **New to Serco?** Join our Talent… more
    Serco (09/05/25)
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  • Senior Electrical (Materials & Assemblies)…

    Serco (Washington, DC)
    …apply now (https://careers-sercous.icims.com/jobs/71082/ senior -electrical-%28materials-%26-assemblies%29- engineer ... defense and safety of our sailors As the Electrical Engineer , you will be on a dynamic team providing...concerns to the PMS 450 Program Manager and other senior officials on complex issues.. + Develop close working… more
    Serco (09/25/25)
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  • Senior Navy Design Engineer

    Cydecor, Inc. (Washington, DC)
    …Cydecor is looking for a highly experienced Senior Navy Design Engineer with expertise in mechanical , structural, electrical, or electronic design, ... Naval vessels and systems. + Lead the design and development of mechanical , structural, electrical, or electronic systems for shipbuilding and defense projects,… more
    Cydecor, Inc. (11/10/25)
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  • Senior Water Reuse Engineer

    Stantec (Washington, DC)
    …H2O+U. Your Opportunity Stantec, a leading global engineering and design firm, is seeking a Senior Water Reuse Engineer to join our team in the Northeast. As a ... Senior Water Reuse Engineer , you will lead...Adobe. Education and Experience - Bachelor's degree in Civil, Mechanical , or Chemical Engineering, Master's degree preferred. - Licensed… more
    Stantec (11/06/25)
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  • Senior Engineer (Ship Control…

    Serco (Washington, DC)
    …projects for the US Navy, Serco has a wonderful opportunity for you! As the Senior Ship Control Systems Engineer , you will be on a dynamic team providing ... to: careers@serco-na.com . Click here to apply now (https://careers-sercous.icims.com/jobs/71518/ senior - engineer -%28ship-control-systems%29 washington%2c-d.c./job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834477830) **New to Serco?** Join… more
    Serco (10/05/25)
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