Senior Harness Design Engineer

Responsibilities

• Own harness architecture and design from concept and schematic capture through production release
• Perform core electrical analysis including wire sizing, voltage-drop budgets, protection coordination, and component selection
• Develop and maintain schematics, harness drawings, wire lists, and splice diagrams using the Zuken E3 suite
• Drive design-to-manufacturing using Zuken E3.HarnessBuilder to automate manufacturing outputs
• Define routing intent, grounding/bonding strategies, and shielding architecture for LV, HV, and RF interconnects
• Specify physical protection and support for harnesses, including lacing, tying, and thermal/abrasion protection
• Build, modify, and validate prototype and test harnesses
• Partner across subsystems (avionics, power, propulsion, payload) and functions (production, test) to ensure seamless integration
• Lead root-cause analysis and implement design improvements for reliability and manufacturability

Requirements

• Degree in electrical, mechatronics, or a related engineering field
• 7+ years of harness design experience, including 2 to 3 years at the system level
• Proficiency in Zuken E3 (including E3.cable, E3.smallcable, and E3.HarnessBuilder)
• Strong electrical fundamentals regarding wire/cable selection, derating, and connector selection
• Fluency in IPC/WHMA-A-620 (Class 3) standards and NASA harness workmanship practices
• Hands-on experience with electrical test equipment (e.g., continuity testers, multimeters, oscilloscopes)
• U.S. Citizenship, Lawful Permanent Residency, or Refugee/Asylee Status required

Preferred Qualifications

• Experience with Zuken E3.database librarian and component-data governance
• Expertise in spacecraft charging and HV design for space environments (corona/Paschen-law behavior)
• RF literacy, including shielded/coax interconnects and impedance control
• Proficiency in 3D CAD tools such as CATIA Electrical, SolidWorks, or 3DEXPERIENCE

Benefits

• Competitive base salary ($135,000 - $235,000 USD)
• Significant equity package via incentive stock options
• High-quality company-subsidized healthcare
• 401(k) retirement planning
• Flexible PTO
• Free on-site catered meals

About the Company

Astranis builds advanced satellites for high orbits, expanding humanity’s reach into the solar system. We provide dedicated, secure networks to large enterprises, sovereign governments, and the US military. Based in Northern California, we design, build, and operate our satellites from our 153,000 sq. ft. headquarters.