128 mechanical engineer jobs found in Washington, DC

ABOUT ROCKET LAB Rocket Lab is the end-to-end space company building rockets, spacecraft, and critical subsystems that keep the world connected, protected, expand humanity's reach to the Moon, Mars, and beyond. We move fast, build real hardware for meaningful missions, and make the impossible routine. Come shape the future with us. SPACE SYSTEMS At Rocket Lab, we're not just launching rockets - we're building the future of space. Our Space Systems team builds everything from complete spacecraft, precision payloads to the components and subsystems that allow them to thrive in space, like solar panels, flight software, star trackers, optical systems, separation systems, radios, and more. Our Space Systems team has enabled more than 1,700 missions, ranging from interplanetary exploration, in-space manufacturing to national security and defense initiatives. The team has built spacecraft, payloads, and components for missions to the Moon and Mars, working with partners including...

The ocean is the largest undeveloped frontier on earth - and the next chapter of abundant energy will be written at sea. We're building the infrastructure to power it. About Ocean Atomics (OA) Ocean Atomics is an American company designing, licensing, and assembling a standardized nuclear electric power plant and the surrounding support systems for maritime applications. We will install these plants on any vessel built to our nuclear-ready standards, and will provide end-to-end sustainment in our planned nuclear lifecycle dockyard. We will help develop the licensed operators to unlock this new capability for your energy intensive application at sea. To move fast and to lead the creation of this new market, we are leveraging the compact, proven systems enabled by water-cooled reactors. Our mission Scale nuclear energy. Power generations. Our vision A maritime commons thriving with abundant, economical, modern, and safe nuclear-powered activity - built, serviced, and...

X-energy LLC conducts a thorough recruiting process and will never issue offers without interview to discuss qualifications and responsibilities. All applications will be submitted via our company career page, www.x-energy.com/careers/. We will never ask you to provide payment information as part of the recruiting process. If anyone claiming to represent X-energy directs you in a manner otherwise, please contact us at www.x-energy.com/contact-us. Job Description This position is responsible for managing the group of engineers responsible for designing and integrating the reactor internals in the XE-100. You will also hold design authority responsibilities for a sub-system or group of components. This role includes directing the work of individual contributors on the team, providing organizational support for the project team, and assisting with the design, analysis and drafting of systems, structures, and components. We are looking for high energy individuals with skills that...

Quantum Space is redefining mobility and maneuverability in space. Our high-mobility spacecraft platforms support national security, civil, and commercial missions with unmatched flexibility and propulsion capability. We build fast and iterate quickly. Who We're Looking For We are seeking a Senior Mechanical Engineer to own flight hardware development on our Spacecraft Programs. This role is built for an engineer who can take a subsystem/component from requirements to a released design, through build, integration, and test-while collaborating tightly with AIT and manufacturing. Senior-level expectations include independent ownership of deliverables and leadership of technical execution for meaningful scopes. Where You'll Make an Impact Own mechanical components/subsystems end-to-end: requirements, design, analysis coordination, release, and integration support Develop CAD and drawings in Creo; apply GD&T and define inspectable requirements Drive interface closure:...

Handles projects from start to finish 100% with little to no oversight. Senior Engineers tackle our most complex projects. Provides oversight, mentorship, guidance and training to others. Job Summary Solve complex technical issues on projects Asses the requirements of a project, break a project into tasks, and work with a Project Manager to determine the scope of work, budget, and staffing Write scope of work for mechanical design based on preliminary review and meetings with the client Prepare engineering studies and schematic design for new systems Analyze operation of existing systems Based on knowledge of applicable building codes, work with code officials and other design professionals when an interpretation or exception to building codes is required Assign and review work of project design team Check progress of work and alert Project Manager to change of scope or additional services Review contractor application for payments Coordinate all aspects of project...

Job Title: Sr. Mechanical Engineer Department: Engineering Location: Germantown, MD FLSA Status: Exempt Job Summary: The Senior Mechanical Engineer is responsible for leading the design, development, analysis, and testing of mechanical systems and components. This role supports the full product lifecycle from concept through production and ensures designs meet technical, quality, and regulatory requirements. The Senior Mechanical Engineer collaborates cross-functionally, mentors junior engineers, and contributes to continuous improvement and innovation initiatives. Essential Duties and Responsibilities: Lead mechanical design of systems, assemblies, and components using CAD software (SolidWorks, CATIA, or similar). Perform structural, thermal, vibration, and stress analyses using FEA and other engineering tools. Develop prototypes and iterate designs based on testing and validation results. Ensure designs comply with performance, safety, and regulatory standards. Plan,...

Erdman Anthony is seeking a Mechanical Engineer to work with architects and building owners under the guidance of a Professional Engineer to translate owner needs into a building design that is buildable, cost-effective, and sustainable. Responsibilities: Calculate heating and cooling loads using Carrier HAP software to size equipment Estimate energy use and savings using EQuest and other simulation programs Lay out ductwork, piping and equipment using AutoCAD software Model building HVAC and plumbing systems using Autodesk Revit software Survey buildings: take photos, measurements, assess equipment Calculate pipe sizes for refrigeration systems using Excel and other tools Answer construction questions relevant to your designs Meet with utilities to work out building connections Perform energy code compliance calculations Model buildings for LEED Energy credits Requirements: Bachelor's degree in Mechanical Engineering from EAC/ABET certified school Experience...

Company Overview Pantheon Data (a Kenific Holding company) is a private, small business based in the Washington, DC, area. Pantheon Data was founded in 2011, initially providing acquisition and supply chain management services to the US Coast Guard. Our service offerings have grown in the past ten years, including infrastructure resiliency, contact center operations, information technology, software engineering, program management, strategic communications, engineering, and cybersecurity. We have also grown our customer base to include commercial clients. The company has used this experience to expand our service offerings to other agencies within the Department of Homeland Security (DHS), the Department of Defense (DoD), and other Federal Civilian Agencies. Position Overview Pantheon Data is seeking a motivated Journeyman Marine Mechanical Engineer (Auxiliary) for vessel sustainment regarding equipment overhauls. This will include evaluation of current shipboard auxiliary...

MUST BE A US CITIZEN (Please do not apply if you are not) Company Introduction At BlackSea Technologies, we don't just innovate; we revolutionize. We are a close-knit team of creative and innovative thinkers specializing in full lifecycle development of cutting-edge maritime technology. At BlackSea, you won't just find a job; you'll find a community of experts who aspire to solve diverse and complex challenges. Be part of a company where your ideas matter, your expertise is valued, and your contributions make a real impact. Together, we are not just sailing; we are charting a course to push boundaries of what's possible. Salary Range: $108,000 to $156,000 Travel: Yes, up to 3 trips a year Job Description: MAPC has an opening for a full time (40hr/wk) Mechanical Engineer with with a background and interest in vessel and ship system designs. The ideal candidate will have a strong technical background, real-world operational experience on marine vessels, and will be...

Job description MUST BE A US CITIZEN (Please do not apply if you are not) Company Introduction At BlackSea Technologies, we don't just innovate; we revolutionize. We are a close-knit team of creative and innovative thinkers specializing in full lifecycle development of cutting-edge maritime technology. At BlackSea, you won't just find a job; you'll find a community of experts who aspire to solve diverse and complex challenges. Be part of a company where your ideas matter, your expertise is valued, and your contributions make a real impact. Together, we are not just sailing; we are charting a course to push boundaries of what's possible. Salary Range: $40 - $52 an hour Travel: 5 trips/30 days a year BlackSea Engineering is seeking a Mechanical Engineer with 3-6 years' relevant experience to join our team in Baltimore. This role will focus on the design, development, and integration of mechanical systems, with a strong emphasis on unmanned maritime systems. The ideal...

Job Description The Senior Mechanical Engineer (ME-II) independently applies an advanced knowledge of engineering principles to the division's more challenging engineering and design activities, under the direction of a Staff Engineer or Project Manager. The Senior Mechanical Engineer provides direction to lower level personnel and technicians, and demonstrates independent operation. The Senior Mechanical Engineer interacts with all OTECH departments as necessary to provide technical support to OTECH manufacturing, integration, and test activities. Experience in maritime and/or subsea engineering is highly desired. Responsibilities ESSENTIAL Proficiency to independently perform engineering analysis, such as structural, dynamics, fluid mechanics, thermodynamics, materials, machine design, etc., using judgment in making adaptations and modifications. Coordinate the efforts of technicians, drafters, technical writers, and other engineers. Provide work leadership for lower...

ASR Group is the world's largest refiner and marketer of cane sugar, with an annual production capacity of more than 6 million tons of sugar. The company produces a full line of grocery, industrial, food service and specialty sweetener products. Across North America, ASR Group owns and operates six sugar refineries, located in Louisiana, New York, California, Maryland, Canada and Mexico. In the European Union, the company owns and operates sugar refineries in England, Portugal. ASR Group also owns and operates mills in Mexico and Belize. The company's brand portfolio includes the leading brands Domino®, C&H®, Redpath®, Tate & Lyle®, Lyle's® and Sidul®. OVERVIEW The Mechanical Engineer will provide engineering support to the maintenance department to help improve equipment reliability, operating efficiency, safety and service quality to the refinery. DETAILED ROLES & RESPONSIBILITIES Support the maintenance team through execution of engineering activities as...

RCT Systems, Power Systems Division, is seeking Senior Mechanical Engineers specializing in 3D electronics packaging, thermal system design, and hardware build and test. Responsibilities of a qualified Senior Mechanical Engineer candidate will include: Package complex power converters, energy storage systems, and PLC systems Build and test complex power converters, energy storage systems, and PLC systems Design thermal management systems for power electronics Perform structural analysis for components, support structures, and ruggedized enclosures under harsh environmental conditions and shock and vibration Use FEA, CFD, and hand calculations for thermal and structural analysis Create, review, and issue prototype and production level drawings IAW GD&T standards Source vendors and communicate for quoting and procurement of custom parts Prepare and perform technical presentations and design reviews for customers Create and maintain process and build...

Short Description Bowman has an opportunity for a Mechanical Engineer I to join our team in Towson, MD. At Bowman, we believe in creating opportunities for aspiring people to thrive and achieve ambitious goals. That's why a career at Bowman is more than a job. It is an opportunity to be part of a diverse and engaged community of professionals, to be treated as a respected and valued member of a motivated team and to be empowered to do exceptional work that advances the best interest of everyone involved. We recognize the importance of creating a work environment that is both rewarding to our employees and supportive of our unwavering commitment to provide unparalleled service to our clients. Purpose Perform all levels of mechanical design including the development of construction documents Responsibilities Leadership and Direction Receive general instruction on key objectives for execution. Receive direction as needed, and especially on difficult assignments and...

Job Description The Project Engineer (ME-III) has mastery of at least one core engineering principle and advanced knowledge of related engineering fields. The Project Engineer independently directs and technically manages engineering and design activities under the guidance of a Project Manager, and is responsible for tracking progress and technical adequacy of the design solution. The Project Engineer interacts with all OTECH departments as necessary to provide engineering support to OTECH manufacturing, integration, and test activities, and provides work leadership for lower level employees. Experience in maritime and/or subsea engineering is highly desired. Responsibilities ESSENTIAL Develop and apply advanced engineering analytical and design methods, theories and research techniques, to complex engineering projects. Coordinate and supervise an interdisciplinary design team of engineers, designers, drafters, technical writers, and technicians. Review progress and...

About the Role: As a Mechanical Subject Matter Expert, you will play a critical role in shaping the design and execution of advanced facility projects. Working closely with clients, engineers, and project stakeholders, you will lead mechanical design efforts, evaluate system performance, and develop solutions that support operational excellence in highly regulated environments. This is an opportunity to make a significant impact across the full project lifecycle, from initial planning through construction support. About TAI: TAI brings together engineering, construction, systems integration, on-site services, and technical services - combining proven execution with trusted expertise to support clients across the entire project lifecycle. Team members at TAI are capable, well-rounded, flexible, and optimistic. We have found that the best employees are the ones who recognize the importance of what they do and the ones who let that guide them in the actions they take. More than...

Job Description Take Your Design Career to the Next Level Kleinfelder, a Forbes' Top Employer for Engineers in North America, is committed to a people-first culture, technical excellence, and creating opportunities where employees can thrive! Are you ready to be challenged, make a difference, and experience professional growth in your career? Kleinfelder's Design team is looking for you! From bridge and structural engineering to civil, electrical, mechanical, and process engineering, Kleinfelder's collaborative Design Services create synergy across multiple disciplines. Step Into Your New Role As a Project Manager, Mechanical Engineer on our MEP engineering team within our facilities department, you will work closely with architects, owners, developers, site development engineers, structural engineers and other team members to provide project management and technical expertise, design and consulting services for all aspects of facility and site design. This includes...

Overview Job Title: Mechanical/Aerospace System Engineer Location: Maryland: AEDC White Oak Campus MD Job Family Code: O- Engineering Function/Branch: Tunnel 9 Directorate: Test Operations Position Type: Regular, Full time Pay Type: Exempt Sponsorship: Position Not Sponsored Grade: M07 (OA0717) - M08 (OA0815) Salary Range: M07: $87,000 - $119,500, M08: $107,200 - $147,300 Overview Open to External candidatesBeyond New Horizons, LLC (BNH) has an exciting opportunity for a Mechanical or Aerospace Systems Engineer, supporting TOS II, at Tunnel 9 in Silver Spring, MD. The Systems Engineer will be working as a member of an integrated team responsible for operating and maintaining, as well as supporting tests the United States Air Force Test Operations and Sustainment efforts. Job Summary Systems Engineers provide engineering functions to support hypersonic wind-tunnel testing at Tunnel 9. The candidate will take ownership of major systems;...

Overview Job Title: Mechanical/Aerospace System Engineer Location: White Oak, MD Function/Branch: Engineering / Tunnel 9 Directorate: Test Operations Position Type: Regular, Full-Time Pay Type: Exempt Grade: L06 / L07 Salary Range : Grade 06: $82,000 - $108,000; Grade 07: $88,000 - $125,000 **Current US Citizenship required** **If you are seeing this posting on a job board, BNH highly recommends you apply directly on the Careers Center page of our business website (https://careers-bnh.icims.com/jobs). Job board applications are not always compatible with company applicant tracking systems.** Overview Beyond New Horizons, LLC (BNH) has an exciting opportunity for a Mechanical or Aerospace Systems Engineer, supporting TOS II, at Tunnel 9 in Silver Spring, MD. The Systems Engineer will be working as a member of an integrated team responsible for operating and maintaining, as well as supporting tests the United States Air Force Test Operations and...

Mechanical Design Engineer Role Title: Mechanical Design Engineer (Level III / Equivalent) Location: Rockville, Maryland Working Pattern: 4-5 days onsite Travel: Up to 10% About the Role We're partnered with a pioneering advanced nuclear energy company at the forefront of developing the next generation of clean, reliable power. As the energy landscape evolves, this organization is helping deliver dependable, always-on carbon-free electricity that supports economic growth while driving the transition to a more sustainable future. We are seeking a seasoned, hands-on Mechanical Design Engineer to spearhead the development of heavy, complex physical hardware and integrated systems. This is not a purely analytical or desk-bound role. We are looking for an execution-focused engineer who takes pride in physical delivery. You will guide projects through their entire lifecycle-from initial conceptual sketches and detailed engineering through to manufacturing, shop-floor assembly, rigorous...