Wire Harness Electrical Engineer II Verified today

Firefly Aerospace · Texas · Electronics · first seen 2026-07-28

About the role

Firefly Electrical Engineers in the Interconnect team develop electrical wiring interconnect systems (EWIS) that distribute power and electrical signals within avionics hardware, instrumentation, and payloads. You will work in small, collaborative groups through all stages of component and system design, manufacturing, and testing, taking ownership of your projects from concept through integration on launch vehicles and spacecraft.

What you will do

Develop and integrate electrical wiring interconnect system (EWIS) designs on launch vehicles and spacecraft.
Understand and implement industry guidelines and requirements for wire harness development and design.
Generate schematics, wire diagrams, harness 3D CAD routing, 2D assembly drawings, technical documentation, and reports to support flight, qualification, and test lab harness assemblies.
Coordinate requirements and interfaces between engineering disciplines, production, and integration.
Make development decisions based on technical merit, risk, cost, schedule, and quality assurance.
Support design reviews by presenting design, analysis, and test results to verify component design and manufacturing meets flight requirements.
Partner with engineering and production teams to generate ideas, creative designs, and continuous improvements.
Tailor aerospace harnessing standards and guidelines to create internal design standards and requirements for cable assemblies, shielding, integration, and vehicle level implementation.

Required qualifications

Bachelor of Science (BS) in electrical engineering with 1-3 years of experience in related engineering discipline.
Familiarity with test equipment to verify harness design and assembly.
Knowledge of harness design, fabrication, and installation standards such as IPC/WHMA-A-620, NASA-STD-8739.4, and MSFC-SPEC-494.
Experience with selection of connectors, backshells, wires, and other harness components.
Understanding of electrical grounding requirements and how to implement proper system level grounding via wire harness design.
Effective verbal and written communication.
Ability to work well in a team, be proactive, and execute with minimal guidance.
Detail-orientated and able to manage multiple concurrent tasks.

Desired qualifications

Bachelor of Science (BS) in electrical engineering with 3 or more years of experience, or Master of Science (MS) with 1 or more years of experience.
Proven ability to generate end-to-end interconnect schematics, wire diagrams, and harness assembly drawings.
Experience with 3D CAD design, 2D drafting, and PLM software such as Siemens NX, Capital, and Teamcenter.
Hands-on experience with harness assembly and shielding integration.
Understanding of basic subsystems of a space-rated vehicle and how avionics interface with each system.
Experience working with instrumentation and high-speed digital communication protocols.
Hands-on experience with integration of electronics and harnessing in airborne vehicles.
Knowledge of range safety, flight termination, and tracking system requirements such as RCC 319, RCC 324, and AFSPCMAN 91-710.

Requirements

To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.