Staff Application Security Engineer The Nuclear CompanyStaff Application Security EngineerWashingtonWe expect every team member to continuously identify opportunities to automate workflows, enhance decision-making, improve processes, and contribute to the ongoing evolution of NOS as a strategic operating capability that enables The Nuclear Company to scale with excellence. This is a high-ownership role for a builder who is equally comfortable reviewing application architecture, threat modeling an API, improving GitHub security controls, and partnering directly with engineers to ship secure software quickly.
Engineer IV, AI & Digital Engineering X Energy LLCEngineer IV, AI & Digital EngineeringRockville, MD$180,000–$205,000 / yearDepending on scope, an engineer in this role may: contribute to technical specifications and roadmaps aligned with engineering needs; serve as a technical point of contact between the development team and internal customers on assigned work; help track product metrics and success criteria; support evaluation and selection of appropriate AWS services; produce system architecture diagrams and API documentation; participate in technical reviews and code walkthroughs; and develop technical prototypes and proof-of-concepts. Support integrations between customer, partner, and supplier engineering systems (Siemens Teamcenter, PTC Windchill, Dassault 3DEXPERIENCE, Aras Innovator, Siemens Polarion, IBM DOORS/DOORS Next, Jama Connect, Oracle Primavera P6, Procore, SAP ERP, Box) and X-energy's platform and lakehouse, using AWS Glue, DMS, Kinesis, EventBridge, API Gateway, and Lambda.
Software Engineer IV, Artificial Intelligence X Energy LLCSoftware Engineer IV, Artificial IntelligenceRockville, MD$144,000–$192,000 / yearWorking under the leadership of the Artificial Intelligence function in a collaborative tiger team environment, this position requires expertise in at least one of the following areas: front-end development, agentic AI, data/systems integration, ML-Ops, or product management. This role is responsible for contributing to X-energy''s Artificial Intelligence (AI) Solutions Tiger Team that accelerates XE-100 nuclear reactor development workflows across business and engineering functions.
Radiation Hardened (RADHARD) Electronics Engineer Johns Hopkins University Applied Physics Laboratory LLCRadiation Hardened (RADHARD) Electronics EngineerLaurel, MDHave experience with modeling or testing of any radiation effects on electronics including total ionizing dose, dose rate, single event effects and displacement damage from X-rays, gamma rays, neutrons, protons, and heavy ions. Have a Master of Science or Doctorate in Physics, Electrical Engineering, Nuclear Engineering, Applied Mathematics, or a related science/engineering field with 7+ years of relevant experience.
Senior Licensing Engineer - Safety Blue EnergySenior Licensing Engineer - SafetyBethesda, MarylandWe also pair natural gas with nuclear at our sites, so customers can start receiving power from gas turbines right away and then switch over to clean nuclear power once it comes online - getting energy to the grid faster while nuclear is being built. Instead of constructing each plant on-site from scratch - a process that takes 10-15 years and is too expensive and unpredictable to finance - we build our plants like ships: in a factory, on an assembly line, then transport and assemble them at the site.
Licensing Engineer Blue EnergyLicensing EngineerChevy Chase, MarylandWe also pair natural gas with nuclear at our sites, so customers can start receiving power from gas turbines right away and then switch over to clean nuclear power once it comes online - getting energy to the grid faster while nuclear is being built. Instead of constructing each plant on-site from scratch - a process that takes 10-15 years and is too expensive and unpredictable to finance - we build our plants like ships: in a factory, on an assembly line, then transport and assemble them at the site.
Radiation Hardened (RADHARD) Electronics Engineer Johns Hopkins Applied Physics LaboratoryRadiation Hardened (RADHARD) Electronics EngineerLaurel, MarylandFull timeHave experience with modeling or testing of any radiation effects on electronics including total ionizing dose, dose rate, single event effects and displacement damage from X-rays, gamma rays, neutrons, protons, and heavy ions. Have a Master of Science or Doctorate in Physics, Electrical Engineering, Nuclear Engineering, Applied Mathematics, or a related science/engineering field with 7+ years of relevant experience.
Manager, Mechanical Engineer - Reactor Internals X Energy LLCManager, Mechanical Engineer - Reactor InternalsRockville, MD$185,000–$207,000 / yearLead design cycle sprints and provide direction to ensure the convergence of efforts of engineering team members, partners, and suppliers to ensure the successful delivery of high-quality engineering work products are on schedule and within budget as defined by the Project leadership. Uses high level of judgement to make decisions and handle complex tasks or problems in areas of operations, product management, manufacturing, technology, or engineering.
Civil Engineer I-II Orano SACivil Engineer I-IIColumbia, MDRemote$80,000–$95,000 / yeardata-css="[data-component="cookie-banner"] { --a-cookieBannerWidget-wrapper-color: #0000004D; --a-cookieBannerWidget-text-font-weight: 400; --a-cookieBannerWidget-text-text-decoration: none; --a-cookieBannerWidget-link-text-decoration: underline; --a-cookieBannerWidget-label-font-weight: 600; --a-cookieBannerWidget-label-text-decoration: none; --a-cookieBannerWidget-divider-border-style: solid; --a-cookieBannerWidget-text-margin-top: 0px; --a-cookieBannerWidget-text-margin-right: 0px; --a-cookieBannerWidget-text-margin-bottom: 0px; --a-cookieBannerWidget-text-margin-left: 0px; --a-cookieBannerWidget-text-padding-top: 0px; --a-cookieBannerWidget-text-padding-right: 0px; --a-cookieBannerWidget-text-padding-bottom: 0px; --a-cookieBannerWidget-text-padding-left: 0px; --a-cookieBannerWidget-divider-margin-top: 24px; --a-cookieBannerWidget-divider-margin-right: 0px; --a-cookieBannerWidget-divider-margin-bottom: 24px; --a-cookieBannerWidget-divider-margin-left: 0px; --a-cookieBannerWidget-divider-border-width: 1px; }">. Orano's activities in the U.S. include developing uranium enrichment facility in Oak Ridge, TN; packages and transportation of uranium & nuclear fuel assemblies; fabricating & installing used nuclear fuel dry storage canisters and casks, conducting pool-to-pad used nuclear fuel transfers; providing solutions to the National Labs and to the Dept of Energy; and supplying U.S. nuclear energy utilities with uranium, conversion, and enrichment services.
AUKUS Technical / Engineering Professionals (Engineer 4) - 29071 Huntington Ingalls Industries IncAUKUS Technical / Engineering Professionals (Engineer 4) - 29071VA$122,691–$180,000 / yearWhen extending an offer, HIIs Mission Technologies division takes a variety of factors into consideration which include, but are not limited to, the roles function and a candidates education or training, work experience, and key skills. With a holistic approach to life-cycle maritime defense systems-from small watercraft to submarines, surface combatants and aircraft carriers-HII ensures a high state of readiness.
NewMaterials Engineer X Energy LLCMaterials EngineerRockville, MD$80,063–$103,688 / yearPerform and assist metallurgical analysis for the alloys selected for metallic systems, structures, and components of X-energy developed reactors, including pressure vessels and piping, reactor internals, heat exchangers, and other systems and components. Develop and implement methodologies to qualify and characterize materials, especially metallic alloys, graphite, composites, and welding materials for nuclear reactor applications including in high temperature environments.
Software Engineer V, AI Digital & Engineering Software X Energy LLCSoftware Engineer V, AI Digital & Engineering SoftwareRockville, MD$220,000–$245,000 / yearDesign and implement integrations between customer, partner, and supplier engineering systems (Siemens Teamcenter, PTC Windchill, Dassault 3DEXPERIENCE, Aras Innovator, Siemens Polarion, IBM DOORS/DOORS Next, Jama Connect, Oracle Primavera P6, Procore, SAP ERP, Box) and X-energy's platform and lakehouse, using AWS Glue, DMS, Kinesis, EventBridge, API Gateway, and Lambda. Working in a fast-paced, collaborative team environment, this engineer applies modern large language models, agentic AI, and cloud-native engineering to move X-energy from siloed documents toward a living, queryable engineering model spanning requirements, design, manufacturing, regulatory, and deployment processes.
NewSenior Software Engineer The Nuclear CompanySenior Software EngineerWashingtonWe expect every team member to continuously identify opportunities to automate workflows, enhance decision-making, improve processes, and contribute to the ongoing evolution of NOS as a strategic operating capability that enables The Nuclear Company to scale with excellence. The actual salary offered may vary based on relevant factors as determined in the Company’s discretion, which may include experience, qualifications, tenure, skill set, availability of qualified candidates, geographic location, certifications held, and other criteria deemed pertinent to the particular role.
General Engineer (Technical Director) US Department of EnergyGeneral Engineer (Technical Director)Washington, DC$179,460–$209,600 / yearSpecified academic courses -- Successful completion of at least 60 semester hours of courses in the physical, mathematical, and engineering sciences and that included the courses specified in the basic requirements under paragraph A. The courses must be fully acceptable toward meeting the requirements of an engineering program as described in paragraph A. Related curriculum -- Successful completion of a curriculum leading to a bachelors degree in an appropriate scientific field, e.g., engineering technology, physics, chemistry, architecture, computer science, mathematics, hydrology, or geology, may be accepted in lieu of a bachelors degree in engineering, provided the applicant has had at least 1 year of professional engineering experience acquired under professional engineering supervision and guidance. FOREIGN EDUCATION: Applicants who have completed part or all of their education outside of the U.S. must have their foreign education evaluated by an accredited organization to ensure that the foreign education is comparable to education received in accredited educational institutions in the U.S. A written evaluation of any foreign education must be provided with your application in response to this vacancy announcement or be received by the closing date of this announcement.
Civil/Structural Engineer Mpr Associates, Inc.Civil/Structural EngineerAlexandria, Virginia$110,000–$150,000 / yearFull timeDuties/Responsibilities: Typical duties for the role will vary based on project and workload at MPR, but will likely include an array of the following: Apply structural engineering first principles to analyze and solve complex problems across all types of power generation facilities, with a special focus on nuclear power. Work Environment: Collaborative and technically rigorous—you'll lead multiple concurrent projects across different reactor technologies, mentor engineers across technical domains, and continuously expand your expertise while maintaining independence from vendor-specific approaches.
Heat Exchanger Design Engineer X Energy LLCHeat Exchanger Design EngineerRockville, MD$185,000–$207,500 / yearDevelop innovative mechanical solutions to refine and deploy concepts, technologies, and designs associated with X-energy developed reactors, including pressure vessels and piping, reactor internals, nuclear fuel, and high temperature materials such as graphite. 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.
Software Engineer III, AI Digital & Engineering Software X Energy LLCSoftware Engineer III, AI Digital & Engineering SoftwareRockville, MD$150,000–$180,000 / yearDepending on scope and under the guidance of senior engineers, an engineer in this role may: contribute to technical specifications and roadmaps aligned with engineering needs; serve as a technical point of contact between the development team and internal customers on assigned work; help track product metrics and success criteria; support evaluation of appropriate AWS services; produce system architecture diagrams and API documentation; participate in technical reviews and code walkthroughs; and develop technical prototypes and proof-of-concepts. Assist with integrations between customer, partner, and supplier engineering systems (Siemens Teamcenter, PTC Windchill, Dassault 3DEXPERIENCE, Aras Innovator, Siemens Polarion, IBM DOORS/DOORS Next, Jama Connect, Oracle Primavera P6, Procore, SAP ERP, Box) and X-energy's platform and lakehouse, using AWS Glue, DMS, Kinesis, EventBridge, API Gateway, and Lambda.
Project Engineer - Electrical Enercon Services IncProject Engineer - ElectricalTysons, VA$105,400–$170,000 / yearYour role will involve developing winning engineering proposals with technical staff, executing projects within budget and schedule constraints, and maintaining robust client relationships. Imagine a day where you lead dynamic design engineering projects, guiding cross-functional teams to deliver innovative, high-quality solutions on time and within budget.
Project Engineer - Instrumentation & Controls Enercon Services IncProject Engineer - Instrumentation & ControlsTysons, VA$105,400–$170,000 / yearYour role will involve developing winning engineering proposals with technical staff, executing projects within budget and schedule constraints, and maintaining robust client relationships. Imagine a day where you lead dynamic design engineering projects, guiding cross-functional teams to deliver innovative, high-quality solutions on time and within budget.
NewSpecial Structural Analysis Engineer 3 Sargent & Lundy LLCSpecial Structural Analysis Engineer 3Washington, DC$74,353–$113,595 / yearYou will work with a structural engineering team on engineering projects for new nuclear facilities and upgrades and modifications to nuclear power plants and other safety-related structures in the following areas: This position will offer you the ability to directly apply your knowledge of materials, structural analysis, structural steel design, and reinforced concrete design. Since 1954, we've been a trusted leader in nuclear engineering, design, and licensing, with expertise spanning small modular reactors (SMRs), advanced reactor technology (ART), and first-of-a-kind commercial reactor restart projects.