Power Systems Engineer

As an early mover in the in-space transportation and infrastructure services, Momentus is at the forefront of the commercialization of space. With an experienced team of aerospace, propulsion, and robotics engineers, Momentus has developed a cost‑effective and energy‑efficient in‑space transport system.

Daring problems require daring solutions. We boldly charge into uncharted territory knowing that no matter the outcome we will benefit from the journey and move closer to our goals. Our teams know that working at Momentus means more than building innovative technology, it means creating entirely new markets in the space economy. We are level‑headed, business‑minded strategic thinkers intent on providing immediate value to our customers today while simultaneously preparing for the vast possibilities of the future.

We are seeking a Power Systems Engineer to develop, implement, and maintain advanced power systems. The ideal candidate should be accustomed to working in a fast‑paced environment and enjoy working on ensuring the reliability, efficiency, and sustainability of the power supply, addressing both the technical and economic aspects of power system design and operation. Energy systems are critical for powering spacecraft and supporting long‑duration missions.

• Design, analyze, and support power systems, including power distribution, power conditioning, and battery interfaces.
• Perform power budgeting, load analysis, and efficiency trade studies across mission phases.
• Analyze and design systems in a collaborative multidisciplinary environment.
• High level of proficiency in circuit analysis, test, and troubleshooting.
• Write clear and concise reports that document your work.
• Provide power system expertise during system integration and performance testing.

• Proficient in all phases of engineering development (requirements, design, test, and production).
• Experience using industry‑specific tools to analyze and test electronic systems.
• Ability to write technical documents and procedures.
• Experience with spacecraft or aerospace power systems, including battery management systems (BMS).
• Familiarity with power integrity analysis, grounding strategies, and high‑current PCB layout techniques.
• Ability to work independently.
• Excellent technical communication skills.
• Excellent written and verbal communication skills.

• Previous experience working on DoD and other U.S. government development and deployment programs.
• Ability to hold and maintain a U.S. government security clearance.

• Master's in Electrical Engineering, Physics, or equivalent with 5+ years of relevant experience.
• Bachelor's degree with 10+ years of relevant experience.

Annual base salary range: $140,000 - $195,000 per year. Base pay is one part of our total compensation package (base + bonus + equity) and is determined within a range. Your actual base salary will be determined on job‑related knowledge, skills, education, and experience. The benefit plans include medical, dental, and vision insurance, 401(k) retirement plan, short- and long‑term disability, and life insurance.

We also offer flexible PTO, 11 paid holidays, sick time, and paid parental leave.

This is a full‑time position in San Jose, California. This position requires access to export‑controlled commodities, technical data, technology, software, and services. U.S. citizenship, U.S. legal permanent resident status, or protected person status under 8 U.S.C. § 1324b(a)(3) is required.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.