Test Engineer (Mechanical/Fluids)

Location: El Segundo, California, United States; 100% onsite at the El Segundo headquarters.

Salary: $106,500–$146,475 per year, plus equity.

Company

hirify.global develops mass-produced, transportable nuclear microreactors, including the 1 MW Kaleidos reactor for critical infrastructure and commercial applications.

What you will do

• Drive development, qualification, and acceptance testing for fluid, electrical, and structural reactor hardware.
• Perform Test Conductor and Test Director activities and translate hardware and software designs into executable test procedures.
• Partner with design engineers to develop test methods for complex mechanisms and structures.
• Support test planning, execution, hardware integration, risk identification and mitigation, post-test inspections, data review, and performance analysis.
• Identify suppliers for component sourcing and fabrication and improve test processes and data delivery quality.
• Maintain clear, usable procedural documentation compliant with DOE and NRC standards.

Requirements

• 2+ years of full-time professional engineering experience involving system design, analysis, or testing.
• Bachelor’s degree from an accredited institution in mechanical, manufacturing, or a related engineering discipline.
• Strong technical fundamentals in fluids and thermodynamics.
• Professional background in a highly regulated industry such as nuclear, aerospace, aviation, or maritime.
• Ability to apply first-principles thinking in uncertain or ambiguous situations.
• Demonstrated ability to lead projects and work independently with minimal direction.
• Strong written and verbal communication skills; flexible, adaptable, and self-driven.
• Must be willing to work extended hours and weekends as necessary.
• Employment is subject to the applicant’s capacity to serve in compliance with U.S. export controls.

Nice to have

• Experience in fast-paced test environments, safety protocols, high-reliability operations, high-pressure gases, or safety engineering, including FMECA and keep-out zones.
• Experience with pressure safety, stored energy, thermal, material, and mechanical test fixtures.
• Experience designing, fabricating, or operating fluid systems and reading P&IDs and drawings.
• Knowledge of pressure transducers, flow meters, thermocouples, RTDs, and accelerometers.
• Experience with DAQ, PLCs, Beckhoff, Python, or MATLAB.
• Familiarity with ASME B31.3, B31.1, and BPVC Sections III and VIII.
• Experience with helium or pressure-decay leak detection.
• Proficiency with Ion, Epsilon3, NX CAD, or Teamcenter.

Culture & Benefits

• Full-time employees receive an incentive stock plan, comprehensive medical, vision, dental, and other voluntary benefits.
• Eight weeks of paid parental leave for all parents, with additional paid pregnancy leave for California employees.
• Fully covered Nuclear Engineering Certificate Program through Penn State University for eligible employees.
• Flexible PTO, a remote workday allocation, catered lunch, snacks, drinks, and commuter benefits.
• In-person team events and an El Segundo headquarters near the Pacific Ocean.

Hiring process

• Interested candidates may contact hirify.global directly at recruiting@hirify.globalnuclear.com for immediate opportunities.