Senior Test Engineer — Fuel Handling System
About The Position
As a Test Engineer on the Fuel Handling System (FHS) team, you will design, build, and operate the test infrastructure required to validate complex mechanical systems operating in challenging environments. This includes mechanisms, sealing systems, sodium-compatible components, and fluid systems used in fuel handling, cleaning, and storage. You will play a critical role in turning concepts into reality—building test rigs, running experiments, diagnosing failures, and driving rapid iteration. This role is highly hands-on and requires both engineering judgment and practical fabrication skills. You will work in an environment where requirements are evolving and ambiguity is high. Success in this role requires ownership, creativity, and the ability to move quickly to unblock progress.
Requirements
- Bachelor’s degree in Mechanical Engineering or related field
- 6+ years of hands-on engineering experience (industry, internship, or equivalent)
- Experience with fabrication, assembly, or electro-mechanical testing
- Strong mechanical intuition and troubleshooting ability
- Comfortable working with incomplete requirements and high ownership
- Based in the United States
- Willing to work on-site in Austin, TX
- Applicants must be U.S. Citizens or U.S. Persons in compliance with 10 CFR Part 810 and may not hold non-compliant foreign citizenships.
Nice To Haves
- Experience with fluid systems (valves, seals, hydraulics, or gas systems)
- Designing and building custom test rigs or experimental setups
- Experience with high-pressure, high-temperature, or hazardous systems
- Familiarity with instrumentation and data acquisition systems
- Experience diagnosing mechanical failures and root cause analysis
- Exposure to sodium systems, vacuum systems, or inert gas environments
- Hands-on project experience (e.g., Formula SAE, robotics, lab systems, hardware startups)
- Comfortable working in a hands-on lab and factory environment
- Ability to lift up to 25 lbs and stand for extended periods
- Willingness to perform hands-on work including assembly, plumbing, and troubleshooting
Responsibilities
- Design and build test rigs for mechanical, thermal, and fluid system validation
- Execute tests on components such as valves, seals, hoists, and handling mechanisms
- Develop test strategies for systems operating in sodium, inert gas, and high-temperature environments
- Instrument systems (pressure, temperature, force, radiation proxies, etc.) and collect high-quality data
- Diagnose failures and work with design engineers to iterate quickly
- Perform hands-on fabrication, assembly, and modification of test hardware
- Develop procedures for testing sodium vaporization, sealing performance, and mechanism reliability
- Document results and clearly communicate findings, risks, and blockers
- Support system integration and commissioning efforts
- Travel occasionally to test sites or reactor installations
Benefits
- Health, Dental, Vision Insurance
- Paid Time Off
- Corporate Gym Membership
- Opportunities for professional growth
- Intellectually challenging careers
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What This Job Offers
Job Type
Full-time
Career Level
Senior
