Prototype Engineer (Hardware)
Job Description
The Role
You'll own the hands-on build, iteration, and precision assembly of our engineering model, a high-speed (10,000–16,000 RPM) motor for satellite reaction wheels and CMGs. This is a build-test-rebuild role: you'll personally assemble prototypes, dynamically balance rotors, run and support environmental validation (shock, vibration, thermal, EMI/EMC), diagnose fit and performance issues, and iterate fast through multiple engineering model builds before we move toward flight-model AIT.
Location: Hyderabad, Telangana, India (on-site)
Employment Type: Full-time
Experience: 2–6 years
What You Will Do
• Personally assemble and dynamically balance high-speed rotor assemblies (target balance grades to be defined per build)
• Select, install, and diagnose bearing performance for continuously rotating shaft assemblies
• Build and iterate custom assembly fixtures and jigs as the design evolves through engineering model cycles
• Diagnose vibration, fit, and tolerance issues through hands-on troubleshooting, visual inspection, root-cause analysis, and rework
• Plan and support environmental validation of prototype builds, shock testing, vibration (sine/random), thermal cycling, and EMI/EMC characterization, working with test facilities or in-house equipment as available
• Correlate environmental test results against expected performance and feed discrepancies back into the design and assembly process
• Coordinate with vendors on machined component quality, tolerance verification, and material test reports
• Support spin testing and thermal behavior monitoring of the prototype under continuous operation
• Work closely with the design/FEA engineer to feed back real assembly and test findings into the next design iteration
• Progressively build toward formal documentation (assembly procedures, cleaning procedures, test procedures) as the design stabilizes and the program moves toward flight-model AIT
What We're Looking For
• Hands-on experience with high-speed rotating hardware, motor assembly, rotor dynamic balancing, bearing installation, in any of the following domains: drone/UAV motors, EV/e-bike motors, robotics actuators, or high-speed rotating machinery (turbochargers, motorsport, industrial spindles)
• Direct experience with dynamic balancing equipment and procedures (to a specific balance grade)
• Hands-on or supporting experience with shock, vibration, thermal, and EMI/EMC validation testing, setting up test articles, running test campaigns, or interpreting results (standards such as MIL-STD-810, MIL-STD-461, or equivalent are a plus)
• Precision mechanical assembly skills, tolerance stack-up, interference/press fits, torque procedures
• Comfort working in a fast-iteration prototype environment rather than a formal, process-heavy production environment
• Space/satellite background is a plus but not required; we specifically want someone who has personally done rotor balancing, high-speed motor assembly, and environmental validation, wherever that experience comes from
• Willingness to grow into formal AIT/ECSS documentation practices as the program matures toward flight qualification.
