Cowboy Space
Senior Battery Engineer
$167K–$230K
Kent, Washington · On-site · Senior · Full-time · Posted Sep 14, 2026
- Experience
- 3+ years developing battery systems for aerospace, automotive, defense, or other high-reliability applications.
- Education
- BS, MS, or PhD in Electrical Engineering, Mechanical Engineering, Materials Science, Chemical Engineering, or a related discipline.
- Visa sponsorship
- Applicants must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.
About the job
Owns spacecraft battery systems from design and development through integration, qualification, launch, and on-orbit performance monitoring.
What you'll do
- Design battery packs, modules, interconnects, and battery management systems to meet spacecraft mission requirements.
- Lead battery sizing, modeling, testing, validation, and environmental qualification; investigate failures and develop corrective actions.
- Support manufacturing, spacecraft integration, launch campaigns, and on-orbit battery performance monitoring.
What they ask for
- BS, MS, or PhD in Electrical Engineering, Mechanical Engineering, Materials Science, Chemical Engineering, or a related discipline.
- 3+ years developing battery systems for aerospace, automotive, defense, or other high-reliability applications.
- Experience designing battery packs and energy storage systems, including cell/module/pack architecture and electrical interconnect design.
- Experience developing or integrating Battery Management Systems (BMS), including cell balancing, SOC/SOH estimation, and fault protection architectures.
Nice to have
- Experience developing spacecraft or satellite battery systems.
- Familiarity with MATLAB/Simulink, Python, or equivalent tools for battery modeling, SOC/SOH algorithm development, and analysis.
Pay
USD 167,000 - USD 230,000 annually (base salary)
Tools
NMC, NCA, LFP, BMS, COMSOL, MATLAB/Simulink, Python, GEVS/NASA-STD-7001
Model-written summary · the original posting is authoritative