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Fuel System Design Engineer Jobs in Washington, DC

X Energy LLC

Mechanical Design Engineer

Rockville, MD · On-site

$77K - $105K/yr

This role is responsible for the engineering design and development of mechanical systems ... fuel, and high temperature materials such as graphite. * Integrate design activities across ...

Baltimore Aircoil Company

Design Engineer

Jessup, MD · On-site

$63K - $108K/yr

Basic knowledge of HVAC/Refrigeration system. * Advanced Excel skills * Sheet metal design ... Design Engineer reports directly to the Order Engineering Manager. He or she will also report ...

Baltimore Aircoil Company

Design Engineer

Jessup, MD · On-site

$63K - $108K/yr

Basic knowledge of HVAC/Refrigeration system. * Advanced Excel skills * Sheet metal design ... Design Engineer reports directly to the Order Engineering Manager. He or she will also report ...

Tate

Design Engineer

Columbia, MD · On-site

$70K/yr

Proficiency with 2D and 3D CAD (Computer Aided Design) systems is required. * Project Management experience is a plus. * Previous experience with engineering drawing standards and practices, new ...

Tate Access Floors Inc

Design Engineer

Columbia, MD · On-site

$70K - $110K/yr

Proficiency with 2D and 3D CAD (Computer Aided Design) systems is required. * Project Management experience is a plus. * Previous experience with engineering drawing standards and practices, new ...

Tate Access Floors Inc

Design Engineer

Columbia, MD

$70K - $110K/yr

Proficiency with 2D and 3D CAD (Computer Aided Design) systems is required. * Project Management experience is a plus. * Previous experience with engineering drawing standards and practices, new ...

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All JobsFuel System Design Engineer JobsFuel System Design Engineer Jobs in Washington, DC

Fuel System Design Engineer information

See Washington, DC salary details

$56.1K

$134.3K

$196.5K

How much do fuel system design engineer jobs pay per year?

As of Aug 22, 2026, the average yearly pay for fuel system design engineer in Washington, DC is $134,314.00, according to ZipRecruiter salary data. Most workers in this role earn between $113,300.00 and $155,200.00 per year, depending on experience, location, and employer.

What is a fuel system design engineer?

Fuel System Design Engineers are specialized engineers who design, develop, and test fuel systems for vehicles, aircraft, or industrial equipment. Their work involves ensuring that fuel delivery systems are efficient, safe, and meet regulatory standards. They collaborate with other engineering teams to integrate fuel systems with engines and other components, and use tools like CAD software for system modeling. These engineers also analyze system performance, troubleshoot issues, and may be involved in testing prototypes or supporting production. The role requires strong knowledge of fluid dynamics, materials, and safety regulations.

What are the key skills and qualifications needed to thrive as a fuel system design engineer?

To thrive as a Fuel System Design Engineer, you need a solid background in mechanical or aerospace engineering, a strong understanding of fluid dynamics, and relevant experience in fuel system components. Familiarity with CAD software (such as CATIA or SolidWorks), simulation tools, and industry standards is typically required, alongside certifications like Professional Engineer (PE) licensure. Excellent problem-solving abilities, teamwork, and clear communication skills set outstanding candidates apart in this role. These skills and qualities ensure the safe, efficient, and innovative design of fuel systems that meet stringent regulatory and performance requirements.

What are some typical challenges faced by fuel system design engineers when collaborating with cross-functional teams?

Fuel System Design Engineers often work closely with teams from mechanical, electrical, and manufacturing disciplines to ensure that fuel system components integrate seamlessly with the overall vehicle architecture. A common challenge is balancing conflicting requirements, such as safety standards, cost targets, and spatial constraints, while meeting performance goals. Clear communication and early alignment with stakeholders are crucial to avoid costly redesigns and ensure the system meets all regulatory and operational demands. Being adaptable and proactive in problem-solving helps Fuel System Design Engineers navigate these interdisciplinary challenges effectively.

What is the difference between Fuel System Design Engineer vs Mechanical Engineer?

AspectFuel System Design EngineerMechanical Engineer
CredentialsBachelor's in Mechanical, Automotive, or Aerospace Engineering; specialized training in fuel systemsBachelor's in Mechanical Engineering; broader engineering focus
Work EnvironmentAutomotive, aerospace, or industrial settings focusing on fuel systemsVarious industries including manufacturing, automotive, aerospace, and energy
Industry UsageSpecific to fuel system design and integrationGeneral engineering tasks across multiple systems

The Fuel System Design Engineer specializes in designing and developing fuel delivery systems, while the Mechanical Engineer has a broader role in mechanical systems. Both roles require similar educational backgrounds but differ in focus and industry application.

What are popular job titles related to Fuel System Design Engineer jobs in Washington, DC?

For Fuel System Design Engineer jobs in Washington, DC, the most frequently searched job titles are:

What job categories do people searching Fuel System Design Engineer jobs in Washington, DC look for?

The top searched job categories for Fuel System Design Engineer jobs in Washington, DC are:

Fuel System Design Engineer jobs near you
Infographic showing various Fuel System Design Engineer job openings in Washington, DC as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 13% Part Time, and 3% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $134,314 per year, or $64.6 per hour.

Mechanical Design Engineer

X Energy LLC

Rockville, MD • On-site

$77K - $105K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 17 days ago

Job description

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 professionals to join our Mechanical Engineering team in the role of Mechanical Design Engineer to support the development of the Xe-100. This role is responsible for the engineering design and development of mechanical systems, structures, and components such as Reactor Internal Structures, Steam Generator System, Helium Circulator System, Graphite Core Components, Reactor Cavity Cooling System, or Nuclear Auxiliary Systems. This includes concept development, evaluation of concepts, analysis of systems, structures, and components for their ability to perform their intended function, and ensuring they meet all technical specifications and requirements. The role will ensure the development of the systems and components through production including any necessary prototyping, testing, and commissioning.
Responsibilities
  • Develop mechanical/physical concepts, design and support development of processes to create or identify structures, systems, and components (SSCs) for use in nuclear products or facilities with a focus on nuclear safety.
  • Identify, collect, and document applicable requirements, interfaces, design basis and criteria by coordinating with key stakeholders/systems engineers and support identifying applicable industry codes and standards and the direction of project leads and systems engineers.
  • Planning and performing the analysis required to assess aspects of the SSCs to ensure they can perform their intended functions and meet technical specifications and design requirements.
  • 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.
  • Develop 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.
  • Integrate design activities across engineering team members, partners, and suppliers and perform supporting scoping and sizing calculations to downselect design features to meet design requirements using guidance from consensus codes and standards.
  • Create and maintain CAD-generated engineering models of reactor SSCs.
  • Support the assessment of SSCs for manufacturability as well as assembly and integration considerations at the direction of project leads.
  • Write and develop design documentation including design basis documents, technical reports, calculations, and drawings in accordance with applicable procedures.
  • Develop Verification and Validation (V&V) plans for analytical tools and support qualification of toolset.
  • Perform work in accordance with X-energy quality procedures for design and configuration management to ensure project quality requirements are met.
  • Provide independent reviews and acceptance reviews of engineering deliverables and data.
  • Maintain professional demeanor and behavior at all times in all forms of communication.
  • Perform other duties as assigned by manager.

Minimum Qualifications
  • Bachelor's degree in mechanical engineering, or related engineering discipline (e.g., nuclear aerospace, chemical, etc.) from an accredited institution required.
  • Proficiency with engineering hand calculations is required.
  • Experience designing and developing mechanical or fluid systems, assemblies, or components.
  • One plus years of demonstrated hands-on experience developing and delivering hardware or manufacturing processes in a production environment is required. May include industry internship experience, hobby, or participation in collegiate engineering projects such as: Formula SAE, Baja SAE, Design Build Fly, Rocket Club, etc.
  • Hardware ownership including manufacturing and testing oversight.
  • Experience in use of Computer-Aided Design (CAD) and product lifecycle management (PLM) software (e.g UG/NX, Solidworks, Pro-Engineer, Teamcenter, Windchill, or similar).

Preferred Qualifications
  • Experience with commercial nuclear power plant operations.
  • Professional experience in commercial nuclear power as well as design, qualification, licensing, and construction to ASME Boiler & Pressure Vessel Code (BPVC) Section III and/or Section VIII.
  • Experience with NRC regulations and licensing requirements for safety-related systems.
  • Experience with design using ASME BPV Code, ASME B31.1 or B31.3, and other industry standards.
  • Experience with Mechanical Process Equipment (Piping, Ducting, HVAC, Fire Suppression, Pumps, Pressure Vessels, Piping, Valves, Structural Supports) selection, sizing, and specification development
  • Hands-on experience with graphite or other non-metallic components, fabrication or assembly sequencing, and/or tooling development preferred. Experience with procurement and manufacturing oversight of pressure vessel or large metallic components.

Job Level Qualifications:
  • Level II
    • Level Tasks/Responsibilities
      • Support team members with the execution of the core tasks and responsibilities listed in the Job Profile Task/Responsibilities section of this document, under guided supervision.
      • Coordinate with engineering team members, partners, and suppliers to facilitate the convergence of efforts, allow design closure, provide design assurance, and deliver high quality engineering work products.
    • Level Minimum Qualifications
      • Typically, three years of experience in an engineering role required.
      • 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.
      • A Ph.D. 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 three years of experience.
  • Level III
    • Level Tasks/Responsibilities
      • Execute the core tasks and responsibilities listed in the Job Profile Task/Responsibilities section of this document, with minimal supervision.
      • Provide ownership, responsibility, and accountability over technical scope involving the coordination of multiple individual contributors working in a specific area.
    • Level Minimum Qualifications
      • Typically, five years of experience in an engineering role required.
      • 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.
      • A Ph.D. 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 three years of experience.
  • Level IV
    • Level Tasks/Responsibilities
      • Lead the execution of the core tasks and responsibilities listed in the Job Profile Task/Responsibilities section of this document, without close supervision and some latitude for independent judgement.
      • Provide feedback and guidance to more junior team members with the execution of the core tasks and responsibilities listed in the Job Profile Task/Responsibilities section of this document.
      • Lead small groups of engineers to solve complex technical problems and deliver high quality engineering work products on time and within budget.
    • Level Minimum Qualifications
      • Typically, ten years of experience in an engineering role required.
      • 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.
      • A Ph.D. 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 three years of experience.
  • Level V
    • Level Tasks/Responsibilities
      • Lead the execution of the core tasks and responsibilities listed in the Job Profile Task/Responsibilities section of this document, without close supervision and extensive latitude for independent judgement.
      • Teach and mentor more junior team members.
      • Stay abreast of industry and academic trends, breakthroughs, and best practices.
    • Level Minimum Qualifications
      • Typically, fifteen years of experience in an engineering role required.
      • 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.
      • A Ph.D. 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 three years of experience
      • .Previous experience at X-energy exceeding performance standards may be in lieu of years of experience.

Location: 9801 Washingtonian Boulevard, Gaithersburg, Maryland
Work Site Expectations: 4-5 days in office
Travel Expectations: up to 10% as needed
Hours: Standard office schedule are 8:00am-5:00pm ET, Mon-Fri
Compensation
As required by Maryland and other applicable state law, X Energy, LLC (X-energy) lists the expected compensation range for a publicly advertised job opportunity based upon the job requirements (e.g. education/training, experience, skill sets, etc.). Individual candidates who meet the job requirements for the posted position will be offered a salary within this range based on their respective levels of education/training, experience, and other qualifications unique to them. Salary ranges may vary based on the specific office location and region referenced in the posting to take into consideration differences in cost of living and may not be reflective of all regions. Please note that compensation ranges listed for US job postings reflect base salary only and do not include benefits or other incentives.
Offers within the posted salary range are commensurate with the individual's qualifications for the position, along with a view on internal equity, market data, and room for growth. The salary range for this position is:
level II: $95,000 - $120,000 level III: $115,000 - $140,000 Level IV: $140,000 - $170,000
Position Job Classification
Full time - Exempt
Benefits
X Energy, LLC offers a robust benefits package that includes a 401K plan with an employer match, Medical/Dental /Vision Insurance, Life and Disability Insurance, Paid Time Off, and a Tuition Reimbursement/Professional Development policy that supports the continuing education of our employees.
An Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.
X Energy, LLC participates in E-Verify. Please visit the links below for more information about E-Verify and the protection of your Right to Work.
Right To Work Link: If you have the right to work, don't let anyone take it away (e-verify.gov)
E-Verify Participation Link: E-Verify Participation Poster English and Spanish

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