Head of Mechanical Design Engineering

Besxar Space Industries, Inc. (Besxar) is building off-Earth foundries that use the natural ultra-high vacuum of space as a manufacturing input. Our Fabships are designed to produce trusted, ultra-high-yield semiconductor materials that are difficult or impossible to make on Earth at comparable purity and defect performance.

We are not building a science project; we are building a new industrial capability. That means real hardware, rapid iteration, disciplined execution, and a willingness to challenge assumptions from first principles as we design, fly, learn, and improve mission by mission.

About the Team

Mechanical engineering is central to Besxar’s ability to turn space into a factory floor. This role sits at the core of Fabship development: owning major assemblies, translating ambiguous mission and business requirements into manufacturable hardware, and helping define how the mechanical team operates as we scale.

You will work shoulder-to-shoulder with systems, electrical, software, materials, manufacturing, and test to build flight hardware on real schedules. The expectation is hands‑on leadership across concepting, CAD, release, build, integration, test, failure learning, and design iteration.

• Lead mechanical design and R&D for Besxar Fabships, including concept development, trade studies, detailed design, and integration strategy across structures, mechanisms, interfaces, enclosures, and support tooling.
• Directly own major CAD assemblies and product structure/BOM for critical systems; maintain strong configuration discipline, clear interfaces, and high‑quality drawing release packages.
• Design with metallic materials and space‑rated components, selecting appropriate materials, finishes, fasteners, bearings, seals, sensors, and purchased parts for high‑reliability space hardware.
• Translate system requirements into manufacturable mechanical designs that balance performance, mass, stiffness, thermal behavior, contamination sensitivity, serviceability, cost, and schedule.
• Perform and review hand calculations, tolerance stack‑ups, GD&T, fit/interface studies, and FEA as needed to close designs with appropriate engineering margin.
• Lead prototype builds and hands‑on assembly/integration in the lab; create or review assembly procedures, work instructions, test plans, and inspection criteria.
• Bring a strong lessons‑learned mindset: use prior design experience, build feedback, supplier issues, test data, and failure investigations to improve each hardware revision and avoid repeating mistakes.
• Partner with internal technicians and external vendors to move parts from design through fabrication, inspection, assembly, and verification.
• Lead or contribute to design reviews, root‑cause investigations, and anomaly resolution with a high bar for clear communication and sound engineering judgment.
• Help define how mechanical engineering is done at Besxar, including CAD conventions, design checklists, part libraries, release processes, and cross‑functional review norms.
• Mentor other engineers and contribute technical leadership as the mechanical team grows.

Basic Qualifications

• Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or a similar technical discipline, or equivalent practical experience.
• 5+ years of progressive mechanical design engineering experience developing complex hardware products from concept through build, integration, and test.
• Demonstrated ownership of large CAD assemblies and mechanical product development for highly integrated electromechanical, aerospace, or other high‑consequence systems.
• Strong proficiency in a modern 3D CAD platform (e.g., Solid Works, NX, Creo, CATIA, or similar) and 2D drawing creation, including BOMs, revision control, and PDM/PLM workflows.
• Strong mechanical design fundamentals, including GD&T, tolerance analysis, material and process selection, fastener and joint design, structural load paths, fits, and DFM/DFA.
• Hands‑on build and assembly experience; comfortable working directly with hardware in the lab, on the floor, or with suppliers to debug interfaces, close issues, and improve designs.
• Experience designing with metallic hardware and integrating…