Turbomachinery Build Engineer – Hands-On Startup

Radiant; El Segundo, Northern (CA, KY); Hybrid; USD 70,000 - 95,000; Full time

Benefits offered by this job

Stock options

Medical plan

One Medical

Vision plan

Dental plan

Voluntary benefits

Parental leave

Catered lunch

Flexible PTO

Team events

El Segundo HQ

Job summary

Radiant in El Segundo, CA, is seeking a Build Engineer to bring high-speed turbomachinery from design to reality. This hands-on role is ideal for new graduates or early-career engineers to learn by building, assembling, and integrating turbomachinery systems with design, test, and manufacturing teams.

You will prepare hardware for first-article testing and system validation, gaining experience with high-speed rotating machinery while contributing to a first-of-its-kind nuclear microreactor

Qualifications

• Bachelor’s degree in Mechanical Engineering or expected graduation within 6 months.
• 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.

Responsibilities

• Hands-On Builds & Assembly: assemble and integrate prototype turbomachinery hardware including compressors, turbines, rotors, motors, bearings, seals, and housings; develop assembly instructions, alignment procedures, and torque specs; support rotor stacking, bearing installation, balancing, and alignment; document activities and lessons learned.
• Process & Tooling Support: develop and maintain build tools, fixtures, and work-holding solutions; create work instructions and SOPs for assembly; provide design/manufacturing feedback to improve hardware assembly.
• Cross-Functional Collaboration: work with design engineers, test engineers, and technicians to prepare hardware for testing and validation; troubleshoot assembly issues; receive mentorship while growing responsibilities.
• Learning & Growth: gain experience with high-speed rotating machinery, tight tolerances, and precision assembly; learn industry best practices for turbomachinery build and first-article readiness; build engineering judgment in a fast-paced startup.

Skills

Mechanical Eng

Rotating Machinery

GD&T

CAD

Reading Drawings

Education

B.S. in Mech Eng

Tools

CAD (SolidWorks)

Job description

Radiant in El Segundo, CA, is seeking a Build Engineer to bring high-speed turbomachinery from design to reality. This hands-on role is ideal for new graduates or early-career engineers to learn by building, assembling, and integrating turbomachinery systems with design, test, and manufacturing teams.

You will prepare hardware for first-article testing and system validation, gaining experience with high-speed rotating machinery while contributing to a first-of-its-kind nuclear microreactor