> Markdown version of [/jobs/ext/3784123-build-engineer-turbomachinery](https://www.wearedevelopers.com/jobs/ext/3784123-build-engineer-turbomachinery). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Build Engineer, Turbomachinery

- **Company:** Radiant Compensates
- **Location:** El Segundo, United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** 3d Models, Hardware Design, Systems Integration, Hardware Testing, Reliability of Systems, Build Process
- **Published:** October 16, 2026
- **Apply:** https://startup.jobs/senior-build-engineer-turbomachinery-radiant-industries-8090023

## About the Role

* Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or a related engineering discipline.
 * 5+ years of relevant experience in mechanical assembly, hardware integration, manufacturing, or build engineering involving complex mechanical systems.
 * Demonstrated hands-on experience assembling, integrating, and troubleshooting precision mechanical hardware.
 * Strong understanding of GD&T, tolerance stack-ups, mechanical fits, fasteners, torque requirements, and alignment principles.
 * Proficiency in reading and interpreting complex engineering drawings, assembly documentation, and 3D CAD models.
 * Experience developing assembly procedures, troubleshooting hardware issues, and improving build processes.
 * Strong mechanical aptitude and first-principles problem-solving skills, with the ability to independently resolve complex technical challenges.
 * Ability to work effectively across design, manufacturing, and test engineering teams in a fast-paced hardware development environment., * Direct experience with turbomachinery, gas turbines, compressors, high-speed rotating equipment, or power generation systems.
 * Experience with precision rotor assembly, dynamic balancing, bearing installation, shaft alignment, and high-speed rotating machinery.
 * Familiarity with precision measurement and inspection techniques, including dial indicators, micrometers, bore gauges, and other metrology equipment.
 * Experience designing or developing custom assembly fixtures, tooling, and mechanical ground support equipment.
 * Familiarity with rotor dynamics, thermal growth, bearing preload, interference fits, and mechanical clearances.
 * Experience supporting first-article builds, prototype development, hardware testing, and design iteration.
 * Experience transitioning complex hardware from engineering development to repeatable production processes.
 * Prior nuclear industry experience is not required.

## Description

Radiant is seeking a highly motivated Senior Build Engineer to lead the assembly, integration, and build execution of high-performance turbomachinery systems for our portable nuclear microreactor. This is a hands-on engineering role requiring strong mechanical fundamentals, precision assembly experience, and the ability to independently solve complex hardware challenges.

You will take ownership of prototype and first-article turbomachinery builds, working closely with design, manufacturing, and test teams to translate engineering designs into functional, test-ready hardware. This role will be instrumental in developing assembly processes, resolving integration challenges, and improving hardware reliability and build repeatability as we advance toward production., * Lead hands-on assembly, integration, and troubleshooting of complex turbomachinery hardware, including compressors, turbines, rotors, electric motors, bearings, seals, and housings.

 * Own precision assembly operations, including rotor stacking, bearing installation, balancing, alignment, and mechanical fit-up.
 * Interpret engineering drawings, GD&T, tolerance stack-ups, and mechanical specifications to ensure proper assembly and hardware functionality.
 * Identify and resolve assembly challenges involving tight tolerances, component interfaces, alignment, and mechanical interference.
 * Drive first-article build execution, ensuring hardware meets engineering requirements and is ready for testing and validation., * Develop, implement, and refine assembly processes, work instructions, alignment procedures, and torque specifications for complex rotating machinery.
 * Design and develop custom assembly tooling, fixtures, and work-holding solutions to improve build efficiency, precision, and repeatability.
 * Evaluate assembly methods, identify process improvements, and establish best practices for transitioning prototype builds toward repeatable production processes.
 * Maintain detailed build documentation, including as-built configurations, inspection results, nonconformances, and lessons learned., * Partner closely with design, manufacturing, and test engineers to resolve hardware integration challenges and improve design for manufacturability and assembly.
 * Lead root cause investigations and corrective actions for assembly defects, mechanical failures, and hardware nonconformances.
 * Provide technical feedback on component design, tolerances, material selection, and assembly interfaces to improve hardware performance and reliability.
 * Support hardware testing, including pre-test inspections, post-test teardown, failure investigations, and implementation of design or process improvements.
 * Provide technical guidance and mentorship to junior engineers and technicians, establishing high standards for precision assembly, workmanship, and build quality.