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Senior Harness Design Engineer

Astranis

San Francisco, CA · Senior

$135,000 – $235,000

Listed on Astranis’s own careers site. You apply with them directly — we never stand between you and the employer.

What this role is

This role owns the electrical harness design for satellites operating in geostationary orbit, from architecture through production release, requiring deep expertise in wire sizing, protection coordination, and space-environment reliability. The position suits experienced harness engineers who can drive design decisions across electrical, mechanical, and manufacturing domains and who thrive owning complex problems end-to-end.

Our summary, not Astranis’s wording. The full posting is on their site.

Skills this role names

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What they ask for

Required

  • Bachelor's degree in electrical, mechatronics, or related engineering field, or equivalent hands-on harness design experience
  • 7+ years of harness design experience, including 2–3 years at system level owning harness architecture
  • Zuken E3 proficiency with hands-on command of E3.cable, E3.smallcable, and E3.HarnessBuilder
  • Strong electrical fundamentals including wire and cable selection, ampacity, voltage drop, insulation ratings, shielding, bundling, and connector selection
  • Mastery of IPC/WHMA-A-620 Class 3 workmanship and NASA harness practices
  • Ability to generate complete harness documentation packages including schematics, wire lists, connector face views, and splice diagrams
  • Hands-on experience with electrical test equipment including harness testers, multimeters, and oscilloscopes
  • Working understanding of space environment effects: vacuum, thermal cycling, radiation, launch vibration and shock
  • Mechanical literacy for 3D routing feasibility, clamp definition, and harness path planning

Nice to have

  • Zuken E3.database librarian experience for harness library and component-data governance
  • Spacecraft charging expertise including surface charging, internal and deep-dielectric charging effects per NASA-HDBK-4002 and ECSS-E-ST-20-06
  • HV design for space environment including corona and Paschen-law behavior and E-field analysis for partial discharge
  • RF literacy with shielded and coax interconnects, impedance control, and familiarity with space coax and connector specs
  • Test and verification experience including continuity, insulation resistance, dielectric withstanding voltage, bonding resistance, and TDR
  • 3D CAD proficiency in CATIA Electrical, SolidWorks, or 3DEXPERIENCE

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