Build Engineer I/II - Space

The role

You will turn engineering designs into hardware for space missions. You will own development, prototype, and pathfinder builds from planning through assembly, testing, and as-built closeout.

What you will do

• Plan assembly sequences, build flow, and schedules using engineering drawings and CAD models
• Write build procedures and work orders
• Maintain accurate as-built records and hardware configuration
• Assemble mechanical and fluid hardware
• Support design reviews to confirm adequate safety factors and margins
• Install instrumentation and wiring
• Perform mid-build checkouts
• Support verification, validation, and qualification testing
• Design, procure, and build fixtures, handling equipment, and development tooling
• Source, inspect, and resolve discrepancies for hardware and parts

Required qualifications

• Bachelor’s degree in mechanical or aerospace engineering, or a related engineering discipline
• 1+ years of hands-on experience building, assembling, or integrating mechanical hardware
• Ability to read and interpret engineering drawings and 3D CAD models
• Ability to work long hours and weekends as necessary to support critical milestones
• Ability and willingness to work on-site full time

Nice to have

• Experience owning a hardware build from planning through completion, including on collegiate rocketry, satellite, or similar project teams
• Proficiency with geometric dimensioning and tolerancing (GD&T) and tolerance stack-ups
• 3D CAD experience designing fixtures and tooling; Siemens NX preferred
• Experience writing build procedures, travelers, or work instructions for flight or flight-like hardware
• Hands-on experience with fluid systems, including tube fittings, valves, regulators, seals, precision cleaning, and helium leak checking
• Strong understanding of bolted joints, including torque, preload, and thread locking
• Experience operating manual mills and lathes, with familiarity in welding, brazing, sheet metal fabrication, and additive manufacturing
• Experience installing thermocouples, pressure transducers, and strain gauges, and building basic wiring harnesses
• Experience with high-temperature, high-pressure, and vacuum hardware
• Familiarity with product lifecycle management (PLM) and enterprise resource planning (ERP) systems

About the company

Antares is building mass-producible, inherently safe, deployable microreactors for terrestrial, underwater, and space use. The team hails from SpaceX, the White House, the Pentagon, the Department of Energy, MIT, and other organizations.