{"id":1289337,"url":"https://alion.io/job/terrestrial-energy-mechanical-engineering-manager","title":"Mechanical Engineering Manager","company":{"id":1848872,"name":"Terrestrial Energy","domain":"terrestrialenergy.com","url":"https://alion.io/company/terrestrialenergy","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"BambooHR","truth_index":{"grade":"C","score":60,"open_postings":12,"ghost_share":0.667,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-01T05:45:00Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Charlotte, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":101000,"max_usd":205000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":989},"experience_years_min":10,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-07-10T00:00:00Z","employer_posted_date":"2026-07-10","last_verified_at":"2026-10-01T18:38:12Z","board_verified":true,"closed_at":null,"days_open":83,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":83},"description":"Interested in helping us transform thermal and electric energy?\nBecome a part of the leading Generation-IV nuclear plant development team.\nCome join us at Terrestrial Energy, a US developer of advanced, Generation IV nuclear reactors. We are growing our workforce to develop and deploy our Integral Molten Salt Reactor (IMSR) small modular nuclear plant to provide cost-competitive, clean firm heat and power to industry.\nThe Company has recently completed a merger creating a publicly listed operating company (NASDAQ “IMSR”), to secure the capital resources for our next growth phase. With the current alignment of US Federal and State government, as well as industry interest in Small Modular Reactor (SMR) and advanced reactor technologies such as Terrestrial Energy’s IMSR, there is today a unique and compelling opportunity to participate in the execution of the company’s growth business plan.\nThe Company is building a team of high-performing business professionals and leaders in engineering, R&D, product management and business development areas at our Charlotte, North Carolina headquarters and future project sites. We are looking for talented individuals who can help build the organization, processes, and goal-orientated corporate culture to lead the company in our expansion. We are seeking people who:\nHave US market experience and perspectives bringing good judgement and innovative approaches to problem solving and business plan execution.\nHave demonstrated exceptional performance in past engineering projects.\nOffer exceptional leadership and team building capabilities.\nHave a deep understanding of the requirements for advanced reactor development.\nCan assist in the creation of the discipline and organized company structure, and contributed to a culture of excellence, necessary for the development and deployment of the Company’s IMSR plant.\nCan thrive in a fast growing business environment, and are capable of flexibility and adaptability at a time of organizational change.\nHave the specific skillset and experience for the following role:\nThe experienced Mechanical Engineering Manager, reporting to the Engineering Director, will primarily be responsible for leading our mechanical engineering function within a dynamic matrix organization. This senior leadership role will provide functional management for the Mechanical Engineering, Stress Analysis, CAD Design, and Thermal Hydraulic groups, ensuring technical excellence while supporting project delivery across multiple programs. The successful candidate will be responsible for building and maintaining a world-class engineering team capable of delivering innovative solutions for the commercialization of the Integral Molten Salt Reactor.\nKey Responsibilities\nYou will serve as the functional leader responsible for the supervision, professional development, and technical qualification of mechanical engineering staff across multiple disciplines.\nYou will establish and maintain engineering standards, processes, and procedures that ensure compliance with nuclear industry codes and standards including ASME, CSA, and relevant regulatory requirements.\nYour role will involve workforce planning, recruitment, and retention strategies to build organizational capability aligned with business objectives.\nYou will provide technical oversight and guidance to ensure engineering deliverables meet quality standards and project requirements while fostering a culture of innovation and continuous improvement.\nIn the matrix organization structure, you will collaborate closely with project managers and other functional leaders to allocate resources effectively, balance workload across the Engineering Department, and resolve competing priorities.\nYou will be accountable for the performance management of your team, including conducting regular reviews, identifying skill gaps, and creating individual development plans that support both employee growth and organizational needs. The position requires establishing and maintaining technical competency frameworks for each engineering discipline under your supervision, ensuring that staff members possess the appropriate qualifications and certifications required for nuclear engineering work.\nYou will serve as a technical lead within the organization, participating in design reviews, providing input on major technical decisions, and representing the mechanical engineering function in interactions with regulators, customers, and industry partners.\nYou will champion safety culture and ensure adherence to quality assurance protocols throughout all engineering activities.\nRequirements\nEducation\nBachelor's degree in Mechanical Engineering or closely related engineering discipline from an accredited institution\nProfessional Engineering (P.Eng.) license or equivalent professional registration\nExperience:\nMinimum 10 years of progressive engineering experience\nMinimum 5 years in leadership or management capacity overseeing multidisciplinary technical teams\nSubstantial experience in the nuclear industry or other highly regulated sectors (pressure vessel design, power generation, or aerospace)\nDemonstrated experience working within matrix organizational structures\nProven track record managing resources across multiple concurrent projects\nTechnical Knowledge:\nStrong knowledge of ASME Boiler and Pressure Vessel Code\nFamiliarity with ASME B31.1 and B31.3 piping codes\nUnderstanding of CSA nuclear standards and relevant regulatory requirements\nExperience with engineering analysis tools and CAD systems\nWorking knowledge of stress analysis and thermal hydraulic principles\nLeadership & Management:\nExcellent leadership and people management skills\nProven ability to build high-performing teams and develop engineering talent\nStrong technical communication skills with ability to explain complex concepts to diverse audiences\nExperience conducting performance reviews and creating professional development plans\nCross-Functional Collaboration:\nDemonstrated ability to work effectively across organizational boundaries with multiple departments\nExperience partnering with Research & Development teams to identify engineering data requirements, develop test specifications, and translate research and testing results into practical engineering applications\nStrong collaboration skills with Safety and Licensing functions to support regulatory compliance and licensing submissions\nProven track record working with Quality Assurance organizations to maintain documentation and quality standards\nAbility to interface with IT departments on engineering software implementation, data management, and digital infrastructure\nExperience facilitating cross-functional design reviews and technical meetings with diverse stakeholders\nSkills in managing competing priorities and resolving technical issues that span multiple departments\nAssets\nAdvanced degree (Master's or PhD) in Mechanical Engineering, Nuclear Engineering, or related field\nDirect experience within the nuclear power industry, particularly with advanced reactor technologies or molten salt systems\nStrong knowledge of ASME Boiler and Pressure Vessel Code Section III Division 5\nFamiliarity with United States Nuclear Regulatory Commission (US NRC), United States Department of Energy (DOE), and/or Canadian Nuclear Safety Commission (CNSC) licensing processes and regulatory requirements\nExperience with finite element analysis (FEA) and computational fluid dynamics (CFD)\nBackground in advanced simulation and modeling techniques\nPrevious involvement in nuclear licensing or regulatory submissions\nBenefits\nExtended Healthcare Plan \nA vacation policy designed to support your work-life balance\nEAP Programs available to you and your family \nWellness Subsidy \nAnnual Performance Review\nPaid Volunteer Days - A chance to give back!\nCareer development opportunities\nPlease submit a Resume and Cover Letter.\nCandidates must be legally authorized to work in the US without the need for sponsorship for employment visa status.\nTerrestrial Energy requires that the successful candidate be able toaccess and use information subject to U.S. Export Control Laws, which mandate all citizenships (including dual citizenships) be from the U.S. Department of Energy’s List of Generally Authorized Countries (10 CFR Part 810 Appendix A and can be found here: \n\nhttps://www.ecfr.gov/current/title-10/chapter-III/part-810/appendix-Appendix%20A%20to%20Part%20810) unless a specific authorization from the U.S. Department of Energy is obtained or unless you are a U.S. citizen, U.S. national, U.S. permanent resident, or protected individual under the U.S. Immigration and Naturalization Act (8 U.S.C. 1324b(a)(3)). Additional information can be found here: https:/ /www.energy.gov/nnsa/10-cfr-part-810.\nTerrestrial Energy Inc. is an equal opportunity employer and does not discriminate on the basis of any legally protected status or group. We encourage applications from all qualified individuals.\nIf you require accommodation during the application or interview process, please advise us as soon as possible so appropriate arrangements can be made. 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