Spacecraft Power Systems Engineer - Equity

Karmanplus; Broomfield (CO); On-site; USD 150,000 - 200,000; Full time

Benefits offered by this job

Medical plans

Dental & Vision plans

Life insurance

Disability Insurance (ST/LT)

401(k) Retirement Plan

Equity Incentive Plan

Job summary

Karman+ is building the first logistics chain in space. You will own the spacecraft’s electrical backbone, from PV array to HV bus and final 28 V loads, ensuring end-to-end operation in a radiation-rich environment.

You’ll lead power electronics development with avionics, test the subsystem, and drive integration and verification in our Colorado facility. The role requires hands-on power design, experience with high-voltage spacecraft buses, and a strong ownership mindset to deliver a robust

Qualifications

• Delivered a spacecraft power subsystem or major part through test, with hands-on power-electronics design.
• Strong fundamentals in DC power conversion, control-loop analysis and bus stability.
• Experience with high-voltage spacecraft buses or high-power interfaces.
• Familiarity with radiation effects and derating practices for power parts.
• Ownership focus across requirements, design, supplier engagement, testing and documentation.
• Comfort working in a small team and making calls when needed.

Responsibilities

• Own the power architecture end-to-end: array, MPPT, HV bus, battery management, HV‑LV conversion and distribution.
• Design the array-to-bus interface, including MPPT strategy and deployment under radiation and temperature.
• Define and defend bus specs against loads, managing inrush, ripple and overvoltage scenarios.
• Lead PCDU and power electronics development with avionics across board-level design, protection, telemetry and fault response.
• Build and validate the power flatsat with simulators and verify through EMC and environmental testing.

Skills

Power electronics design

DC power conversion

Control loops

Radiation tolerance

System integration

Job description

Karman+ is building the first logistics chain in space. You will own the spacecraft’s electrical backbone, from PV array to HV bus and final 28 V loads, ensuring end-to-end operation in a radiation-rich environment.

You’ll lead power electronics development with avionics, test the subsystem, and drive integration and verification in our Colorado facility. The role requires hands-on power design, experience with high-voltage spacecraft buses, and a strong ownership mindset to deliver a robust