Thermofluids Engineer (Nuclear Energy)

Location: Austin, TX, United States; on-site

Company

hirify.global is a US technology company developing and deploying scalable micro nuclear power plants and decarbonized baseload energy systems.

What you will do

• Lead the conceptual design, analysis, and execution of thermal system components and loops for advanced power plant systems.
• Perform multiscale thermal-fluid analysis of complex internal turbulent flows using CFD and system-level codes.
• Develop and validate CFD and thermal-hydraulic models for reactor components, structural stability, performance, and design safety.
• Design and optimize heat exchangers, piping networks, fluid storage tanks, and pressure-boundary equipment.
• Perform structural, thermal, and fluid analyses using FEA and CFD to validate designs for manufacturability and rapid deployment.
• Collaborate with Mechanical, Nuclear, and Systems Engineers while driving projects from concept through final design verification.

Requirements

• Proven experience as a Thermofluids Engineer or in a similar analytical role developing thermal system components for power plants, nuclear systems, or complex industrial systems.
• Expert proficiency in CFD software, such as ANSYS Fluent, STAR-CCM+, or OpenFOAM, and system-level thermal-hydraulic codes.
• Strong knowledge of heat transfer, fluid mechanics, thermodynamics, and internal turbulent flow phenomena.
• Ability to perform in-depth component- and system-level multiscale heat-transfer analyses.
• Strong analytical, problem-solving, decision-making, communication, and cross-functional collaboration skills.

Culture & Benefits

• Hands-on, fast-paced startup environment focused on speed, ingenuity, and accountability.
• Autonomous ownership from concept and analysis through final design verification.
• Daily collaboration within a multidisciplinary engineering team.
• Work focused on scalable, reliable, affordable, and decarbonized nuclear energy.