Senior Nuclear Process Engineer - Inert Gas and Tritium Management

Job Summary

Kairos Power is seeking a Senior Process Design Engineer to support the Cover Gas and Tritium Management Systems for our first low-power demonstration nuclear reactor and future commercial reactor units. In this role, you will help define and deliver high-purity cover gas processes that ensure safe, reliable, and clean operation of the reactor. This position offers the opportunity to shape core nuclear systems, from design through commissioning, in a collaborative and fast-paced engineering environment.

Responsibilities

* Lead design and integration of Inert Gas System (IGS) processes and components for an advanced reactor, ensuring safety, performance, and regulatory alignment.

* Define technical basis for IGS designs that enable high-purity gas operations and effective removal of chemical and radioactive impurities, encompassing process architecture, component selection, and operating strategies.

* Develop and maintain key system documentation such as P&IDs, process control narratives, and design specifications.

* Define and execute testing commissioning and acceptance plans to verify performance, reliability, and maintainability of critical hardware.

* Collaborate across disciplines-Plant Design, Process Design, I&C, Operations, and Safety-to ensure seamless integration of IGS with interfacing systems.

* Select and qualify materials, instrumentation, and components for use in radioactive gas and high-temperature environments.

* Support hazard analyses, FMEA, and licensing efforts to ensure robust safety and regulatory compliance.

* Work with vendors and suppliers to specify and evaluate nuclear-grade gas handling and tritium management equipment.

* Provide technical mentorship and leadership to engineers developing next-generation gas and process systems.

Qualifications

* B.S. (or higher) in Nuclear, Chemical, or Mechanical Engineering.

* 7+ years of relevant industry experience in nuclear, molten salt, refining, chemical, power generation process design engineering or similar applicable industry

* Demonstrated experience designing, delivering, and commissioning high-purity gas systems skids or other containment-critical chemical processes.

* Proficient in interpreting Process Flow Diagrams (PFDs), Piping and Instrumentation Diagrams (P&IDs), and process equipment datasheets

* Experience with Haz Op, FMEA, and safety-by-design principles for nuclear or high-risk systems.

* Familiarity with codes and standards applicable to nuclear systems (ASME, API, NRC, IAEA).

* Experience using process modeling tools (Aspen Plus, AFT Fathom/Arrow, etc.).

Knowledge, Skills & Abilities

* Ability to work with highly collaborative team with excellent verbal and written communication, presentation, and interpersonal skills

* Demonstrated capacity for autonomous problem-solving

* Ability to solve problems quickly and efficiently

* Prioritizes and ensures safety of oneself and others

* Ability to proactively collect, manage and transfer knowledge

* Ability to seek different and novel ways to create efficiencies when working on problems, challenges and issues

* Experience in a nuclear material, radiological processing, of radioactive gas handling systems facility is preferred but not required.

* Prior experience in nuclear or high-temperature chemical systems preferred.

* Proven ability to work in a fast-paced, cross-disciplinary engineering environment and drive design to completion.

Physical Demands

* Remaining in a stationary position, often standing or sitting for prolonged periods

* Communicating with others to exchange information

Environmental Conditions

* General office environment

* Accessing the accuracy, neatness and thoroughness of the work assigned

* High-concentration, demanding and fast-paced

Travel

* Travel (up to 20%) to other Kairos Power offices and vendor locations

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