3,979 Results for

Mechanical Engineering Jobs in McLean, VA

Jobs

Solar Engineer Intern/Co-op Spring 2027 - Energy Solutions Legence Holdings LLC

Fairfax, VA

The company specializes in designing, fabricating, and installing complex HVAC, process piping, and other mechanical, electrical, and plumbing (MEP) systems-enhancing energy efficiency, reliability, and sustainability in new and existing facilities. Whether co-ops are interested in building their skill set in identifying and calculating energy savings measures, developing renovation documents, or hands-on field experience, CMTA Energy Solutions is bound to overcome expectations.

30+ days ago

CFD/ Thermal Hydraulics Engineer III X Energy LLC

Rockville, MD

$115,000–$140,000 / year

A master's degree in engineering or related field (may include a combination of experience obtained through an academic institution, e.g., design projects, research, or design teams, as well as professional experience) may be in lieu of two years of experience. Perform computations utilizing hand calculations and analytical tools for structural, thermal, hydraulic, and other scoping calculations as required at the direction of project leads and systems engineers to ensure SSCs can meet technical requirements.

30+ days ago

Senior Mechanical Design Engineer, Data Center Design Engineering Amazon.com Inc

Herndon, VA

We pioneered cloud computing and never stopped innovating - that's why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses. We support all AWS data centers and all of the servers, storage, networking, power, and cooling equipment that ensure our customers have continual access to the innovation they rely on.

22 days ago

Data Center Facilities Technician I, Mechanical Google LLC

Leesburg, VA

From software to hardware our teams are shaping the future of world-leading hyperscale computing, with key teams working on the development of our TPUs, Vertex AI for Google Cloud, Google Global Networking, Data Center operations, systems research, and much more. Were the driving force behind Googles groundbreaking innovations, empowering the development of our cutting-edge AI models, delivering unparalleled computing power to global services, and providing the essential platforms that enable developers to build the future.

8 days ago

CFD/Thermal Hydraulics Engineer III-IV X Energy LLC

Rockville, MD

$122,500–$138,750 / year

The role may include specialization in one or more of the following areas: Responsible for providing heat transfer, fluid mechanics, and particulate mechanics analysis to support the design of various X-energy developed reactors and supporting subsystems. Perform computations utilizing hand calculations and analytical tools for structural, thermal, hydraulic, and other scoping calculations as required at the direction of project leads and systems engineers to ensure SSCs can meet technical requirements.

14 days ago

FPGA Intern Engineer General Dynamics Corp

Manassas, VA

$24.70–$30.45 / hour

Engineering Interns must be enrolled in an accredited degree program in Computer Engineering, Systems Engineering, Software Engineering, Electrical Engineering, Mechanical Engineering or other related scientific or technical discipline with a preference for a standing of a sophomore or higher. General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation.

10 days ago

Mechanical Engineer (Secret Clearance) The Building People

District of Columbia

This role requires strong technical judgment, clear communication, and the ability to report regularly to the secure federal campus to coordinate with stakeholders, validate field conditions, and support planning and execution activities. The ideal candidate is a well-rounded mechanical engineering professional with broad experience across HVAC, plumbing, controls, energy management, facility assessments, operations support, and infrastructure modernization.

7 days ago

Mechanisms Engineer AST SpaceMobile

Lanham, MD

Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. The ideal candidate is hands-on, innovative, and thrives in a fast-paced environment, collaborating cross-functionally to bring complex mechanical systems from design to deployment.

30+ days ago

Electrical Engineer KFORM Defense

Sterling, VA

You should have one strong engineering discipline, such as mechanical engineering or electrical engineering, and enough working knowledge of adjacent disciplines to build complete products with a multidisciplinary team. Rapidly prototype proof-of-concept designs using practical engineering judgment, fabrication tools, electronics, test equipment, and hands-on iteration.

13 days ago

Application Engineer II IDEX

Linthicum, Maryland

The Valves and Flow Control Applications Engineer plays a key role in helping customers, sales teams, and internal engineering groups select and apply valves and fluid control products. The person in this role uses technical knowledge, strong communication skills, and practical engineering judgment to make sure customers receive solutions that fit their performance and compliance requirements.

30+ days ago

Title Project Engineer AHU Technologies

Washington, District of Columbia

$120,000–$130,000 / year

The Project Engineer supports the Engineering department by providing all aspects of engineering of the HVAC system project design to ensure engineering deliverables meet project, schedule, and technical requirements. We are currently working on Various projects such as media entertainment, ERP Solutions, data warehousing, Web Applications, Telecommunications and medical to our clients all over the world.

30+ days ago

Lead ICT Design Engineer, ICT Infra Engineering Amazon.com Inc

Herndon, VA

We pioneered cloud computing and never stopped innovating - that's why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses. As an ICT Design Engineer, you will be part of a global engineering team, comprised of highly effective Architects, Structural, Civil, Mechanical, Electrical, Security, and Control Engineers.

30+ days ago

Structures Engineer Aurora Flight Sciences

Manassas, VA

$75,000–$134,000 / year

Aurora Flight Sciences provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. During the last three decades, Aurora has designed, rapid-prototyped, and flown an average of one new vehicle a year for both government and commercial customers.

30+ days ago

Senior Systems Engineer General Motors Co

Washington, WA

$153,200–$234,100 / year

This role focuses on system‑level decisions at the intersection of sensors, embedded software, vehicle platforms, and autonomy software, ensuring that sensing solutions are technically sound, aligned with product intent, and executable in production. The role is intended for engineers who are comfortable operating with autonomy, applying first‑principles and physics-based analysis, and delivering robust technical contributions as systems mature from early development into deployed solutions.

3 days ago

ICT Design Engineer, Data Center Design Engineering Amazon.com Inc

Herndon, VA

As an ICT Design Engineer, you will be part of a global engineering team, comprised of highly effective Architects, Structural, Civil, Mechanical, Electrical, Security, and Control Engineers. You'll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles.

2 days ago

Development Project Engineer - Fire Protection & Fire Alarm QTS Realty Trust LLC

Ashburn, VA

$91,065–$139,262.67 / year

The Project Engineer will interact daily with Facilities, Contractors, Designers, Engineers, Commissioning Agents, Vendors, Authorities Having Jurisdiction (AHJs), Insurance Representatives, and Data Center Operations staff and should possess written and verbal communication skills commensurate with this level of engagement. The Development Project Engineer - Fire Protection & Fire Alarm is primarily responsible for assisting with the design, preconstruction, procurement, construction, testing, and commissioning activities for fire protection, fire alarm, and life safety systems across assigned projects.

21 days ago

Fire Protection Engineer; Fairfax, VA Career Collective

Fairfax, Virginia

The ideal candidate has experience with building systems design, enjoys collaborating with multidisciplinary teams, and is comfortable working through all phases of project development. In this role, you will be responsible for designing plumbing and fire protection systems for a variety of commercial, institutional, healthcare, educational, and other building projects.

30+ days ago

Fire Protection Engineer Data Centers Jacobs Solutions Inc

Baltimore, MD

$102,000–$120,000 / year

In this role, you will collaborate with clients, architects, engineers, contractors, authorities having jurisdiction (AHJs), and internal leadership teams to develop innovative fire protection designs that meet stringent reliability, operational, and code requirements. At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good.

8 days ago

Principal Systems Engineer - R&D ON Energy Storage Inc

Reston, VA

The Principal Systems Engineer will own requirements development, drive early-stage prototyping, coordinate with supply vendors on component engineering, and apply structured qualitative decision-making to navigate the trade-offs inherent in grid-scale energy storage system design. Architecture Definition: Lead the definition of system architectures for new products, including power conversion topology, DC bus design, protection and isolation strategy, control hierarchy, and mechanical/thermal layout.

7 days ago

Plumbing Engineer; Fairfax, VA Career Collective

Fairfax, Virginia

The ideal candidate has extensive experience in building systems design, can manage multiple projects simultaneously, and works effectively with clients and multidisciplinary engineering teams. In this role, you will lead the design and coordination of plumbing systems for a wide variety of projects, including healthcare, laboratories, commercial, institutional, educational, and transportation facilities.

30+ days ago

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Mechanical Engineering Jobs in McLean, VA

Solar Engineer Intern/Co-op Spring 2027 - Energy Solutions Legence Holdings LLC

CFD/ Thermal Hydraulics Engineer III X Energy LLC

Senior Mechanical Design Engineer, Data Center Design Engineering Amazon.com Inc

Data Center Facilities Technician I, Mechanical Google LLC

CFD/Thermal Hydraulics Engineer III-IV X Energy LLC

FPGA Intern Engineer General Dynamics Corp

Mechanical Engineer (Secret Clearance) The Building People

Mechanisms Engineer AST SpaceMobile

Electrical Engineer KFORM Defense

Application Engineer II IDEX

Title Project Engineer AHU Technologies

Lead ICT Design Engineer, ICT Infra Engineering Amazon.com Inc

Structures Engineer Aurora Flight Sciences

Senior Systems Engineer General Motors Co

ICT Design Engineer, Data Center Design Engineering Amazon.com Inc

Development Project Engineer - Fire Protection & Fire Alarm QTS Realty Trust LLC

Fire Protection Engineer; Fairfax, VA Career Collective

Fire Protection Engineer Data Centers Jacobs Solutions Inc

Principal Systems Engineer - R&D ON Energy Storage Inc

Plumbing Engineer; Fairfax, VA Career Collective

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