Skip to content
CV Rocket
Get started
How it worksThe enginePricingBlogContactSign in

Open nowPosted 36 days ago

Materials Engineer

X-energy107 open roles

Pay
$80,063 – $103,688 a year
Where
Rockville, MD
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowMaterials EngineerX-energy · Rockville, MD

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on X-energy's own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

12.1% of postings close within 7 days. Measured by our own scanner across the market. X-energy postings stay open a median of 45 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.1%7 days
  4. 19.1%14 days
  5. 35.6%30 days
  6. 52.7%60 days
This job: posted 36 days ago

X-energy median: 45 days open

The posting

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 hiring a Materials Engineer to join its Nuclear Engineering team. This role is responsible for performing engineering tasks associated with selecting, qualifying, and conducting lifetime assessment analyses for materials in a nuclear reactor and nuclear facility.

Job Profile Tasks/Responsibilities

  • 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.
  • Support selection of appropriate materials, test methods, codes and standards, and prepare material specifications for component procurement.
  • Inform development of and assist in oversight of materials testing programs to collect material properties and establish basis for material qualifications.
  • Use engineering tools, including appropriate simulation software, hand calculations, and engineering judgment, assess microscale behavior, grain boundaries, surface effects, degradation behavior (corrosion, oxidation kinetics, neutron damage, etc.), and lifetime performance of materials.
  • The role may include specialization in one or more of the following areas:MetallurgyPerform 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. Collect and use data to support the generation of constitutive material models and perform and assist structural integrity, creep-fatigue, and strain evaluations for metals at high temperatures. GraphitePerform and assist material degradation analysis for graphite and composite components of X-energy developed reactors, including graphite core assemblies, and assessment of as-manufactured, irradiated, and oxidized data. Collect and use data to support the generation of constitutive material models / analytical tools and perform and assist structural integrity, cracking, dimensional change, and stress/deformation evaluations for irradiated graphite. ChemistryPerform system-level and component-level analyses to support impurity inventory calculation and assessment of oxidation, corrosion, and associated material property evolution for these and other relevant degradation mechanisms through the life of the reactor. Collect and use data to support the generation of models / analytical tools and perform and assist oxidation, corrosion, particulate, and impurity inventory management evaluations for systems and components. NuclearPerform system-level and component-level analyses to support assessment of radiation aging / embrittlement, and associated material property evolution for these and other relevant degradation mechanisms through the life of the reactor. Collect and use data to support the generation of models / analytical tools and perform and assist radiation effects life assessment evaluations for system and components.
  • Support the assessment of SSCs for response to environmental conditions at the direction of project leads.
  • Consider effects of tribology and material property evolution on system and component design as a function of temperature and environment.
  • Write and develop design and analysis documentation including design basis documents, technical reports, calculations, and drawings in accordance with applicable procedures, as well as industry publications and engagement in professional forums.
  • Develop Verification and Validation (V&V) plans for analytical tools and support qualification of toolsets.
  • 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

  • Level I: Typically zero to two years of experience in an engineering role required.
  • Level II: Typically three years of experience in an engineering role required.
  • Level III: Typically five years of experience in an engineering role required.
  • Bachelor’s degree in materials engineering, or related engineering discipline (e.g., chemical, nuclear, mechanical etc.) from an accredited institution.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.
  • Experience and/or knowledge in a minimum of one of the following areas:MetallurgyExperience with metallurgical analysis and strong familiarity with metallic alloy material behavior GraphiteExperience with nonmetallic materials behavior (e.g. ceramic / composite / graphite / brittle materials) ChemistryExperience with assessment of oxidation, corrosion, and associated material property evolution for relevant degradation mechanisms. NuclearExperience with assessment of radiation aging and associated material property evolution for relevant degradation mechanisms.

Preferred Qualifications

  • Experience using modeling and simulation software like Aspen and COMSOL.
  • Experience designing or evaluating graphite and carbon-based materials for high‑temperature environments.
  • A background in oxidation kinetics, corrosion science, or materials degradation mechanisms.
  • Familiarity with laboratory methods for characterizing high‑temperature oxidation behavior (e.g., TGA, DSC, SEM/EDS).
  • Prior work experience in nuclear, aerospace, or advanced energy systems involving graphite or refractory materials is a plus.

Location: 9801 Washingtonian Blvd, Gaithersburg MD

Work Site Expectations: 4 days a week in office

Travel Expectations: Up to 10% as needed

Hours: 8:00am-5:00pm, 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 I: $80,063- 103,688; Level II: $93,188- $122,063; Level III: $131,250- $149,625

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

From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against X-energy's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.

  3. We apply on X-energy's form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.

  4. Every reply, sorted

    X-energy's answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.

  5. Reply with AI

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
Get the CV for this job

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

Get the CV for this job
By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.