Technical Fellow, Instrumentation and Controls at X-energy in Rockville, MD

  • Company: X-energy
  • Location: Rockville, MD
  • Salary: $255K – $285K
  • Job type: full time
  • Workplace: onsite
  • Posted: 2026-10-05

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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, LLC is seeking a Technical Fellow - Instrumentation and Control (I&C) to serve as the company's technical authority on instrumentation for the Xe-100 high-temperature gas-cooled reactor (HTGR). The successful candidate provides guidance, sets the standards, reviews and approves the work of others, and provides authoritative technical judgment across the instrumentation lifecycle - from measurement concept through procurement, factory testing, and site commissioning. While primarily consulting, reviewer, and approver role, the Fellow is expected to perform hands-on work as needed to establish expectations, demonstrate standards, and provide worked examples that define the expected rigor and quality of instrumentation engineering. A central dimension of the role is deep experience developing modes of operation for first-of-a-kind technology, ensuring that instrumentation and control approaches are grounded in how a novel plant will actually be operated. Job Profile Tasks/Responsibilities Serve as the senior technical authority and design approver for instrumentation across the Xe-100 program, applying deep expertise in sensor technologies, associated hardware, installation schemes, setting the direction for developing new sensors and installation methods where existing solutions are inadequate Provide expert guidance on the development of detailed description on operating modes and states for first-of-a-kind technology Ensuring instrumentation and control approaches are driven by, and consistent with, the plant's concept of operations - review and approving how measurements and protective functions map to each operating mode and transition Review and approve instrument technology selections and the associated redundancy and voting schemes proposed by the engineering team, based on measurement inputs from system designer/process engineer Develop standards, guidance documents and approve installation schemes for standard measurements, including additional hardware for installation Guide and approve the development of technology selection and installation schemes for non-standard and first-of-a-kind measurement technologies Establish specification standards and review/approve sensor and instrument specifications prepared for procurement, ensuring they are clear, complete, and fit for purchasing and supplier engagemen Lead or oversee the technical evaluation of received instrument quotes and approve supplier recommendations for specific measurement technologies based on that evaluation Advise purchasing and support organizations on the technical aspects of procuring and delivering instruments and associated hardware packages to site on schedule Provide oversight and expert support for instrument testing at the factory, at site, and at other stages, reviewing test approaches and results to confirm performance against specification Provide expert consultation and selective hands-on support for instrumentation-related installation and commissioning at project sites, helping resolve field issues and confirming as-installed performance meets expectations Provide senior I&C expertise into power plant controls development, including review and guidance on control hardware for the investment protection system and the reactor protection system Provide guidance for safety analysis workshops and efforts e.g. HAZID/HAZOP/LOPA etc. Act as a technical mentor and cross-functional influencer - elevating the I&C capability of the broader engineering organization, defining quality

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