Electrical Engineer III, Wire Harness

Firefly Aerospace

Electrical Engineer developing electrical wiring interconnect systems for launch vehicles at Firefly Aerospace. Collaborating on design, analysis, manufacturing, and testing of aerospace components in a team environment.

Posted 6/20/2026full-timeCedar Park • Texas • 🇺🇸 United StatesMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

Assembly

About the role

Key responsibilities & impact

Develop and integrate electrical wiring interconnect system (EWIS) designs on launch vehicles and spacecraft
Understand and implement industry guidelines and requirements for development and design of wire harnesses
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/or quality assurance
Support design reviews by presenting design, analysis, and test results, showing component design and manufacturing is meeting requirements for flight
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

Requirements

What you’ll need

Bachelor of Science (BS) in electrical engineering with 5+ years of experience in related engineering discipline
Familiar with the use of 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
5+ years of experience with selection of connectors, backshells, wires, and other harness components
Understanding expertise of electrical grounding requirements and how to implement proper system level grounding via wire harness design
Communicates effectively both verbally and in writing
Ability to work well in a team, be proactive, and execute with minimal guidance
Detail-orientated and able to manage multiple concurrent tasks

Benefits

Comp & perks

Generous health, dental and vision plans with low plan deductibles
Parental leave
Educational reimbursement
Short term disability
Flexible PTO options

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

electrical wiring interconnect system (EWIS) designschematics generationwire diagramsharness 3D CAD routing2D assembly drawingstechnical documentationharness designfabrication standardsinstallation standardselectrical grounding requirements

Soft Skills

effective communicationteamworkproactive executiondetail-orientedtask management

Certifications

Bachelor of Science (BS) in electrical engineering