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5 jobs found in Gaithersburg, MD

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Gaithersburg, MD $200,000 and up
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QS
Aug 05, 2026
Full time
Director of Mechanical Engineering
$185,000 - $215,000 yearly
Quantum Space Rockville, MD
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 an Director of Mechanical Engineering to own the design, integration, and verification of all mechanical systems on our spacecraft platforms. You will lead a team of engineers and developers building systems that survive launch, operate reliably in space, and enable mission-critical functions including payload support, structural integrity, mechanisms, and thermal control. You'll be responsible for both technical execution and team leadership as you guide the mechanical and propulsion build effort for our Ranger spacecraft programs. Where You'll Make an Impact Lead mechanical design and analysis activities for flight hardware and ground support equipment Own spacecraft mechanical...
Xe
Apr 16, 2026
Full time
Lead, Mechanical Engineering (Reactor Pressure Vessel)
$127,500 - $212,500 yearly
X-energy LLC Rockville, MD
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 X-energy is seeking an experienced Design Lead for our Reactor Pressure Vessel (RPV) team to lead the design, analysis, and qualification of pressure boundary components for our Xe-100 small modular reactor. This role will be responsible for ensuring RPV designs meet all regulatory, safety, and performance requirements while leading a team of engineers through the design and licensing process. This position provides management support and technical leadership to the group performing a subdiscipline of mechanical...
Xe
Aug 25, 2025
Full time
Principal Engineer/ Mechanical Engineering Manager (Heat Exchanger Design)
$152,000 - $228,000 yearly
X-energy LLC Rockville, MD
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 X-energy, LLC is seeking an accomplished Principal Engineer/Mechanical Engineering Manager (Heat Exchanger Design) to lead our advanced Mechanical Design team in the development of Steam Generators and Heat Exchangers for advanced nuclear reactor applications. This leadership position drives the strategic direction and technical excellence of mechanical design operations for the Steam Generator of the Xe-100 Small Modular Reactor (SMR), with particular emphasis on mission-critical reactor systems. The successful candidate...
OA
Aug 05, 2026
Full time
Reactor Core Mechanical Engineer
$110,000 - $240,000 yearly
Ocean Atomics LLC Bethesda, MD
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...
Pe
Aug 05, 2026
Full time
Electrical Engineer (Spacecraft Electrical)
$135,000 - $216,000 yearly
Peraton Washington, DC
Responsibilities Peraton is looking for an Senior Spacecraft Electrical Engineer in the Power Systems and Instrumentation Section in the Spacecraft Engineering Division of the Naval Research Laboratory (NRL). This position is responsible for the design, development, and test of circuit card assemblies and electronics boxes for space flight hardware. This position includes a varied responsibility set to include development of electrical power systems, design and application of power supplies, power distribution, analog/digital instrumentation, stepper and 3-phase DC motor control, and test equipment. Responsibilities of the position: Collaborate with a small team of engineers, customers, and others to discuss existing or potential products or projects Design and develop spacecraft power systems and sensor instrumentations Create and build spacecraft control electronics Create and build spacecraft motor control electronics Create and build spacecraft health and status...
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