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[Remote] Mechanical Harness Engineer

Work from home Full-time role Hiring

Note: The job is a remote job and is open to candidates in USA. AST SpaceMobile is building the first and only global cellular broadband network in space. They are seeking a Mechanical Harness Engineer to design, develop, and integrate electrical harnesses for Low Earth Orbit (LEO) satellite systems, ensuring efficient power and data transfer for successful missions.

Responsibilities

  • Design and develop electrical harnesses for LEO satellite systems, considering mission requirements, space constraints, thermal considerations, and EMC requirements
  • Collaborate with system engineers, electrical designers, and mechanical engineers to define harness specifications and design constraints
  • Create and manage detailed harness drawings, including cable/wire routing, connector selection, splicing, and termination plans using CAD tools
  • Ensure compliance with industry standards (e.g., IPC-WHMA-A-620, ECSS-E-HB-10-10) and space agency requirements
  • Conduct analyses and simulations to verify mechanical integrity, electrical performance, and environmental resistance
  • Support fabrication, assembly, and testing of harnesses, providing guidance to ensure quality and adherence to specifications
  • Perform in-house testing and validation, including continuity checks, insulation resistance, and signal integrity testing
  • Collaborate with suppliers to source space-qualified components while maintaining cost-effectiveness and schedule adherence
  • Document all design and testing activities, including procedures, reports, and design changes
  • Participate in design reviews and cross-functional meetings, providing technical insights for optimization
  • Assist in troubleshooting harness-related issues during integration, testing, and in-orbit operations
  • Stay current with advancements in harness technologies and explore opportunities for innovation

Skills

  • Bachelor's or master's degree in Mechanical Engineering, Aerospace Engineering, or a related field
  • A minimum of 3–5 years of experience in electrical harness design for aerospace or space applications
  • Experience with high-reliability harness design for small satellites, CubeSats, or nano/microsatellites
  • Knowledge of space-rated materials and manufacturing processes
  • Familiarity with thermal analysis and thermal management techniques
  • Previous work with major aerospace agencies or satellite manufacturers

Company Overview

  • AST SpaceMobile is a space-based broadband cellular network company for unmodified mobile devices. It was founded in 2017, and is headquartered in Midland, Texas, USA, with a workforce of 501-1000 employees. Its website is https://ast-science.com.
  • Company H1B Sponsorship

  • AST SpaceMobile has a track record of offering H1B sponsorships, with 4 in 2026, 8 in 2025, 2 in 2023. Please note that this does not guarantee sponsorship for this specific role.
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