Harness Design Engineer

Radiant Industries • El Segundo, CA

23h • $124,500 - $172,725 • Onsite

About The Position

Radiant is seeking a Harness Design Engineer to support the design, build, and integration of electrical wire harnesses in a fast-paced startup environment. The role works alongside mechanical and electrical engineers on system architecture, sensor and actuator selection, packaging, and system integration for advanced hardware. It provides hands-on exposure to end-to-end hardware development, from CAD and analysis through build, test, and validation. The position is 100% onsite at Radiant’s El Segundo headquarters and may require extended hours and weekends as necessary.

Requirements

• Bachelor’s degree in Electrical Engineering, Mechanical Engineering, or a closely related field from an accredited institution.
• At least 3 years of professional, hands-on harness design or manufacturing experience.
• Strong understanding of harnessing architecture, grounding schemas, power requirements, and shielding.
• Strong understanding of electrical systems and ability to interpret schematics.
• Proficiency with analog instrumentation, including 4–20 mA sensors, accelerometers, resolvers, RTDs, and thermocouples.
• Experience with Zuken E3 Cable, EPLAN, or similar harness design and schematic capture tools.
• Proficiency with inductive devices such as solenoid valves.
• Familiarity with Siemens NX or similar 3D CAD tools.
• Basic understanding of high-voltage systems up to 1000 volts.
• Willingness to work extended hours and weekends as necessary.
• Must work 100% onsite at the El Segundo headquarters.
• Any job offer is contingent on the applicant’s capacity to serve in compliance with U.S. export controls.

Nice To Haves

• At least 5 years of professional, hands-on harness design or manufacturing experience.
• Harness design experience in high-reliability or harsh environments such as nuclear, aerospace, defense, or industrial settings, including exposure to radiation, thermal cycling, or vibration.
• Familiarity with harnessing standards such as IPC/WHMA-A-620, SAE AS50881, or NEC/NFPA requirements.
• Hands-on experience supporting harness build and integration on the floor, including troubleshooting and nonconformance resolution during commissioning.

Responsibilities

• Own harness system design from concept through integration and serve as the subject matter expert on interconnections between electrical and hardware systems.
• Create harness drawings for manufacturing and act as the primary point of contact for the harness manufacturing team.
• Support creation of reactor electrical schematics using Zuken E3 Cable and maintain pinout tables throughout the design cycle.
• Make decisions about conductor sizing, wire type, and shielding methods for low- and high-voltage applications, using industry standards as guidance.
• Apply knowledge of electrical failure mechanisms, including voltage drop, thermal effects, and interference, to identify and mitigate risks.
• Select harness materials, with support from the materials team, for challenging reactor environments.
• Support technicians with harness integration on the reactor as the system owner.
• Work with the electrical team to commission the system and troubleshoot issues across the reactor.
• Provide nonconformance solutions during build and integration to limit program delays and maximize system uptime.

Benefits

• Substantial incentive stock plan for all full-time employees.
• Medical coverage up to the base silver-level plan for employees, with 50% dependent coverage; plans up to Platinum are offered.
• Sponsored One Medical memberships for employees and dependents.
• 100% coverage for a top-tier vision plan for employees, with 50% dependent coverage.
• 100% coverage for a top-tier dental plan for employees, with orthodontia extra and 50% dependent coverage.
• Voluntary life, accident, hospital, and critical illness coverage, plus commuter benefits and FSA/HSA, are offered as employee-contributed benefits.
• Eight weeks of paid parental leave for all parents, with additional paid pregnancy leave for California employees.
• Eligible employees can receive full coverage for a Nuclear Engineering Certificate Program with Penn State University.
• Daily catered lunch, free snacks, and drinks.
• Flexible PTO policy.
• Remote workday allocation.
• Company and team-bonding events, happy hours, and in-person camaraderie.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level