Test Engineer, Mechanical/Fluids

El Segundo, CAfull time

Remote

entry

$107k–$146k

H1B: no

Radiant Industries The Test Engineer, Mechanical/Fluids drives test operations for development, qualification, and acceptance of nuclear microreactor technology, focusing on fluid and mechanical systems. This role involves test planning, execution, risk mitigation, and hardware performance analysis.

Responsibilities

Perform testing as a Test Conductor/Test Director to gain firsthand experience, ensuring procedures align with real-world execution.
Partner with design engineers to develop innovative test methods for complex mechanisms and structures.
Support testing and iterative improvements of fluid, electrical, and structural hardware of the Kaleidos reactor through development, qualification, and acceptance testing.
Identify and develop appropriate suppliers for component sourcing and fabrication.
Drive initiatives for continuous improvement in test processes and data delivery quality.
Support one-off test campaigns in a fast paced, minimum-requirements environment to drive hardware risk reduction.
Ensure compliance with DOE and NRC standards, maintaining strict formatting, clarity, and usability in procedural documentation.

Qualification

Experience with high pressure gasesExperience with thermalExperience designingKnowledge of instrumentationExperience with DAQFamiliarity with ASME B31

Required

2+ years of full-time professional experience in engineering problem-solving, including system design, analysis, or testing.
Bachelor’s degree from an accredited institution in mechanical, manufacturing, or other related engineering discipline.
Ability to apply first principles thinking to solve problems and make decisions in uncertain or ambiguous situations.
Background in highly regulated industries (e.g., nuclear, aerospace, aviation, maritime).
Demonstrated ability to lead projects and work independently.
Strong technical fundamentals in fluids and thermodynamics.
Strong written and verbal communication skills.
Flexible and adaptable mindset - self-driven with the ability to seek out requirements with minimal direction.

Preferred

Prior experience working in a fast-paced test environments (e.g., rocket engine testing, turbopump testing, component level testing), with familiarity in safety protocols, and high-reliability operations, high pressure gases, safety engineering (FMECAs, Keep-out Zone).
Experience in regulated or high-reliability environments (nuclear, aerospace, aviation, maritime).
Experience with high pressure gases, pressure safety and stored energy.
Experience with thermal, material, and mechanical test fixtures.
Experience designing, fabricating, or operating fluid systems; ability to read P&IDs and drawings.
Knowledge of instrumentation: pressure transducers, flow meters, thermocouples, RTDs, accelerometers.
Experience with DAQ, PLCs, and analysis tools (e.g., Beckhoff, Python, MATLAB).
Familiarity with ASME B31.3, B31.1, and BPVC Sections III/VIII.