The Role
Lead the design and development of spacecraft electrical power systems across the full lifecycle. Responsibilities include power budgeting, EPS architecture, schematics, PCB layouts, component selection, power analysis, MPPT and battery algorithms, reliability assessments, procurement, subsystem integration, environmental testing, documentation, and in-orbit operations support.
Summary Generated by Built In
We are seeking a Power Systems Engineer to lead the design and development of spacecraft Electrical Power Systems (EPS). You will be responsible for defining power budgets, developing architectures, creating schematics, and ensuring the spacecraft has a reliable and efficient power subsystem. This role spans the full lifecycle of spacecraft power engineering, from design and procurement to integration, documentation, and in-orbit operations.
Key Responsibilities:
- Define satellite power budgets based on mission profile, subsystem requirements, and orbital parameters.
- Design, simulate, and develop spacecraft EPS architectures including solar array conditioning, battery management systems (BMS), and regulated/unregulated power buses.
- Create schematics, PCB layouts, and perform component selection for converters, regulators, and power distribution units.
- Perform detailed power analysis, including efficiency, thermal load, redundancy, and fault tolerance.
- Develop and validate algorithms for power point tracking (MPPT) and battery charge/discharge cycles.
- Conduct worst-case analysis, derating studies, and radiation tolerance assessments for EPS components.
- Perform FMECA to assess reliability and mitigate risks.
- Support component procurement by identifying, evaluating, and sourcing space-qualified or high-reliability parts.
- Integrate and test EPS hardware with other subsystems (OBC, payloads, ADCS, comms).
- Prepare and maintain detailed documentation for EPS design, analysis, testing, and integration.
- Support in-orbit operations by monitoring battery health, solar panel performance, and bus stability.
- Work closely with system engineering to optimize EPS performance for reliability, mass, and cost.
Required Skills & Qualifications:
- B.E./B.Tech or M.E./M.Tech in Electrical Engineering, Electronics, Power Systems, or related field.
- 2–6 years of experience in spacecraft EPS, power electronics, or aerospace hardware development.
- Strong understanding of DC-DC converters, switching regulators, and battery management circuits.
- Hands-on experience with PCB design tools (KiCad, Altium, or OrCAD) and circuit simulation (LTspice, PLECS, etc.).
- Knowledge of space-grade power components, derating standards, and radiation effects on electronics.
- Proficient in power budget modeling and analysis tools (MATLAB, Python).
- Familiarity with solar cell technologies, lithium-ion batteries, and power conditioning techniques.
- Experience testing hardware under TVAC, EMI/EMC, and vibration environments.
- Experience with FMECA and reliability analysis for power systems.
- Strong documentation and reporting skills.
Nice to Have (Preferred):
- Knowledge of spacecraft mission operations and on-orbit power management.
- Familiarity with ECSS/NASA standards for spacecraft power systems.
- Background in designing fault-tolerant and redundant architectures.
- Prior hands-on experience in small satellite or CubeSat EPS development.
- Willingness to work extended hours and/or weekends as needed.
Skills Required
- B.E./B.Tech or M.E./M.Tech in Electrical Engineering, Electronics, Power Systems, or a related field
- 2-6 years of experience in spacecraft EPS, power electronics, or aerospace hardware development
- Strong understanding of DC-DC converters, switching regulators, and battery management circuits
- Hands-on experience with KiCad, Altium, or OrCAD
- Experience with LTspice, PLECS, or similar circuit simulation tools
- Knowledge of space-grade power components, derating standards, and radiation effects on electronics
- Proficiency in power budget modeling and analysis using MATLAB or Python
- Familiarity with solar cell technologies, lithium-ion batteries, and power conditioning techniques
- Experience testing hardware under TVAC, EMI/EMC, and vibration environments
- Experience with FMECA and reliability analysis for power systems
- Strong documentation and reporting skills
- Knowledge of spacecraft mission operations and on-orbit power management
- Familiarity with ECSS or NASA standards for spacecraft power systems
- Experience designing fault-tolerant and redundant architectures
- Hands-on experience in small satellite or CubeSat EPS development
- Willingness to work extended hours or weekends as needed
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The Company
What We Do
Catalyx Space Inc. develops orbital return vehicles and integrated space infrastructure for heavy-mass, high-power, high-volume missions. Its offerings span launch logistics, in-orbit operations, payload integration, mission control, and recovery, along with unmanned laboratories, testbeds, and reusable re-entry capsules. The company targets space logistics, in-space manufacturing, research, defense, and other commercial applications across low Earth orbit and beyond through vertically integrated mission services.
