{"id":1258656,"url":"https://alion.io/job/x-energy-thermal-analysis-manager","title":"Thermal Analysis Manager","company":{"id":1789545,"name":"X-energy","domain":"x-energy.com","url":"https://alion.io/company/x-energy","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":null},"role":"HR","role_family":"HR","seniority":"junior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Rockville, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":140000,"max":180000,"currency":"USD","period":"year","gross":null,"usd_annual":180000},"salary_estimate":null,"experience_years_min":2,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-09-16T00:00:00Z","employer_posted_date":"2026-09-16","last_verified_at":"2026-09-25T19:45:00Z","board_verified":true,"closed_at":null,"days_open":10,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":10},"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.\nJob Description\nThis position is responsible for managing the group of engineers responsible for performing a subdiscipline of mechanical engineering across all projects and programs. This includes directing the work of individual contributors on the team, at the discretion of projects which they are supporting, providing organizational support for the project team, and assisting with the design, analysis and drafting of systems, structures, and components for various advanced reactor plants.Job Responsibilities\nManages the execution of the mechanical design, analysis, and evaluation of assigned projects using sound engineering principles and adhering to business standards, practices, procedures, and product / program requirements.\nManages the utilization of engineering resources across multiple projects and ensures qualified engineers are performing assigned work.\n\nAdjudicates technical differences within their area of responsibility to determine best option, while fostering a healthy engineering dialogue.\n\nLead 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.\n\nManages staff by ensuring they are meeting expectations and promoting their professional development.\n\nInfluences the development of strategy, methodology and technical tools for the area of responsibility, including control of resources, policy formulation, and ways in which technical work is executed.\n\nInterprets simple internal and external business challenges and recommends best practices to improve products, processes, tools, or services.\n\nUses high level of judgement to make decisions and handle complex tasks or problems in areas of operations, product management, manufacturing, technology, or engineering.\n\nAct in advisory capacity to define scope and level of effort estimates for areas where their resources would be supporting.\n\nWork within a multidisciplinary engineering team to create the next generation nuclear power plants.\n\nPerform work in accordance with design control procedures, ensuring thorough documentation of work, facilitation of internal and external design reviews, and control of product design configuration data.\n\nMaintain professional demeanor and behavior at all times in all forms of communication.\n\nPerform other duties as assigned by manager.\n\nJob Qualifications\nBachelor’s degree in mechanical engineering or related discipline from an accredited university or college.\nTypically, ten years of engineering experience. Graduate degrees typically count as two plus years of experience.\nUse of 1D flow-solvers performing heat/energy and mass balance (e.g., RELAP, Flownex, NPSS, SINDA/FLUINT, ASPEN Plus, Flomaster, or similar).\nPreferred Skills\n5+ years of dedicated thermal-hydraulic or thermodynamic systems analysis experience within the nuclear industry.\nSupervisory experience: perform yearly performance reviews, guide career development, and provide coaching and conflict resolution.\nExecute project schedule - ensure team delivers technical tasks on-time while maintaining quality.\nPlant-Level Steady-state Analysis: oversee/perform thermodynamic assessment of primary and secondary systems to define cycle efficiency and mass and energy balance. \nPlant-level Transient Analysis: Oversee/ Evaluate system behavior during normal operational cycles and off-normal accident scenarios.\nDeep understanding of single and two-phase flow fluid mechanics, heat transfer phenomena, and plant dynamics.\nLocation: 9801 Washingtonian Blvd, Gaithersburg, MD \nWork Site Expectations: 4 days in office\nTravel Expectations: up to 10% as needed\nHours: Standard office schedule are 8:00am-5:00pm ET, Mon-Fri\nCompensation\nAs 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.\nOffers 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:\n$140,000 - $180,000Position Job Classification\nFull time - ExemptBenefits\nX 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/ProfessionalDevelopment policy that supports the continuing education of our employees.\nAn 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.\nX 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.\nRight To Work Link: If you have the right to work, don't let anyone take it away (e-verify.gov)\nE-Verify Participation Link: E-Verify Participation Poster English and Spanish","description_format":"text","description_chars":6329,"description_truncated":false,"requirements":{"experience_years_min":2,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["401k plan","Equity","Professional development","Vision insurance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Energy & Utilities","Nuclear Energy"],"lifecycle":[{"event":"open","at":"2026-09-25T19:45:00Z"}],"liveness":{"score":69,"band":"ok","label":"Likely open","p_open":1,"p_active":0.77,"p_room":0.9,"age_days":10,"expected_fill_days":20,"reasons":["conf:6","win:mid","comp:junior,brand"],"computed_at":"2026-09-26T02:12:45Z"},"pay":{"stated_usd_annual":180000,"is_top_pay":true},"html_url":"https://alion.io/job/x-energy-thermal-analysis-manager","json_url":"https://alion.io/job/x-energy-thermal-analysis-manager.json","meta":{"generated_at":"2026-09-26T02:12:45Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2232,"day_limit":5000,"remaining_today":2768,"minute_limit":60,"resets_at":"2026-09-27T00:00:00Z"}}}