Build Engineer, Turbomachinery

Radiant Industries•El Segundo, CA

2d•Onsite

About The Position

We are seeking a Build Engineer, Turbomachinery to help bring high-speed rotating hardware from design into reality. This is a hands-on role ideal for new graduates or early-career engineers who want to learn by building, assembling, and integrating complex turbomachinery systems. You will work closely with design, test, and manufacturing teams, helping prepare hardware for first-article testing and system validation. This is a fantastic opportunity to gain real-world experience with high-speed, high-temperature rotating machinery while making a direct impact on a first-of-its-kind nuclear microreactor program.

Requirements

Bachelor’s degree in Mechanical Engineering or a related field (or expected graduation within 6 months)
Strong interest in hands-on mechanical assembly, rotating machinery, or turbomachinery systems
Basic understanding of GD&T, fits, torque, and alignment principles
Comfort reading and interpreting mechanical drawings and CAD models
Willingness to learn, take initiative, and work safely with precision hardware

Nice To Haves

Prior hands-on experience from internships, co-ops, class projects, or design competitions (SAE, Formula SAE, robotics, etc.)
Familiarity with mechanical assembly, rotor balancing, or bearing handling
Interest in turbomachinery, power generation, or high-speed rotating systems
Excited to work in a fast-paced, innovative startup environment
Prior nuclear experience is not required

Responsibilities

Responsible for assembly and integration of prototype and first-article turbomachinery hardware, including compressors, turbines, rotors, electric motors, bearings, seals, and housings
Develop precise assembly instructions, alignment procedures, and torque specifications
Support rotor stacking, bearing installation, balancing, and alignment operations
Document assembly activities, as-built observations, and lessons learned
Help develop and maintain build tools, fixtures, and workholding solutions
Support creation of work instructions and standard operating procedures for assembly processes
Provide feedback to design and manufacturing teams to improve hardware assembly and integration
Work closely with design engineers, test engineers, and technicians to prepare hardware for testing and validation
Participate in troubleshooting assembly issues and contribute to iterative improvements
Receive mentorship from senior build engineers while gradually taking on more responsibility
Gain experience with high-speed rotating machinery, tight tolerances, and precision assembly
Learn industry best practices for turbomachinery build, integration, and first-article readiness
Develop problem-solving skills and hands-on engineering judgment in a fast-paced startup environment

Benefits

Substantial incentive stock plan for all full-time employees.
100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
Sponsored memberships for employees and their dependents.
100% top tier plan coverage + 50% for dependents.
100% top tier plan coverage, orthodontia extra, 50% for dependents.
Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
8-weeks of paid parental leave for all parents.
Additional paid pregnancy leave for CA employees.
Daily catered lunch.
Free snacks and drinks.
Flexible PTO policy.
Remote workday allocation.
Company and team-bonding events, happy hours and in-person camaraderie.
Beautiful El Segundo headquarters close to the Pacific Ocean.