Senior Cryogenics Engineer

Ready to take your cryogenics expertise to the next level? At Realta Fusion, you'll join a fast-moving team turning bold scientific ideas into real-world innovation - with cryogenic engineering at the heart of it all.

Realta Fusion is a rapidly growing start-up developing compact magnetic mirror fusion energy systems to address the biggest challenge of our time - tackling global climate change while ensuring a sufficient energy supply for at least ten billion people on (and off) earth. We are building a team with diverse talents dedicated to making fusion energy a real solution to humanity's most pressing problem.

The Senior Cryogenics Engineer will lead the design, development, and operation of advanced cryogenic systems that support Realta's compact magnetic mirror fusion platform. This role will integrate deep expertise in cryogenic processes with hands-on engineering and systems-level thinking to ensure the safe, efficient, and reliable performance of cryogenic infrastructure. The successful candidate will collaborate closely with engineering and physics teams to drive innovation in cryogenic systems for all devices on Realta's technology development roadmap, including the prototype device Anvil, the first commercial device Hammir, and all associated systems and subsystems.

Responsibilities

• Lead design, analysis, development, and deployment of cryogenic cooling and pumping systems.
• Develop and implement process flow diagrams, P&IDs, and thermodynamic models.
• Specify, source, and integrate cryogenic components including valves, pumps, heat exchangers, insulation, and sensors.
• Drive system-level integration of cryogenic subsystems into Realta's experimental and commercial platforms.
• Support commissioning, validation, and operation of cryogenic systems.
• Collaborate with controls teams on automation, data acquisition, and safety interlocks.
• Lead troubleshooting, root-cause analysis, and maintenance planning, for cryogenic equipment.
• Mentor junior engineers and contribute to company-wide technical strategy in cryogenics.
• Ensure compliance with safety codes, pressure standards, and industrial best practices.

Required Qualifications

Preferred Qualifications

Compensation and Benefits

What we are working on is hard... and hugely important. Realta Fusion is assembling a talented team bound together by a passion to solve humanity's biggest challenge with first-of-a-kind technology. Additionally, Realta offers :

We value diversity as a critical factor in innovation and believe a diverse team is necessary to solve the toughest problems. We aim to create an inclusive environment that unleashes the full creativity of our team members from a wide variety of backgrounds and experiences. We provide equal employment opportunities to all individuals based on merit and without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any other protected status under applicable laws.