Harness Design Engineer

Overview In this role you will design, analyze, and verify electrical harnesses for spacecraft and related systems, ensuring spaceflight-grade performance under harsh conditions. You’ll collaborate with systems, mechanical, and manufacturing teams to integrate harnesses into spacecraft and rovers, and you’ll drive qualification testing and compliance with NASA/ESA standards. The position offers a path to shape critical electrical infrastructure for scalable satellite buses at Apex. You’ll work in a mission-driven environment that values precision and cross-functional collaboration. Compensation / Benefitsequity in Apex100% company-paid medical, dental, and visionlife insurance $100kgenerous PTO (15–20+ days) and holidays401(k) with strong matchparenteral leave and childcare reimbursement ResponsibilitiesDevelop detailed wiring diagrams, schematics, and 3D routing models for electrical harnessesSelect space-rated connectors, wires, and shielding materialsEnsure harness designs meet system requirements and integration needs across teamsPerform analyses (voltage drop, signal integrity, thermal) to validate performanceComply with EMI/EMC and spaceflight standards (NASA, ESA)Conduct environmental assessments for thermal, radiation, and mechanical stressesCreate test plans for qualification, acceptance, and environmental testingCollaborate with test teams to validate designs under thermal vacuum, vibration, and radiation testsProduce design documentation (BOMs, ICDs, drawings)Maintain records of iterations, compliance checks, and test resultsSupport installation, integration, testing, and troubleshooting during assembly Key requirementsU.S. Person status required for export-controlled dataBachelor’s or Master’s degree in Electrical or Aerospace Engineering or related field3+ years of experience in aerospace electrical harness designFamiliarity with space-rated materials and componentsStrong grounding, shielding, power distribution, and signal integrity knowledgeProficiency with electrical CAD tools (e.g., Altium, Rapid Harness) and mechanical CAD tools (NX, Teamcenter)Experience with harness manufacturing, prototyping, and production supportKnowledge of NASA/ESA spaceflight standards and IPC/WHMA-A-620, MIL-STD-810 qualityAbility to read schematics and drawings with high attention to detailStrong problem-solving and cross-functional collaboration skillsdetail-orientedcollaborativeproblem-solvingAltiumRapid HarnessNX