Lead Spacecraft Battery Engineer

Cowboy Space Corp.; San Carlos (CA); On-site; USD 167,000 - 230,000; Full time

Benefits offered by this job

Equity in Cowboy Space Corp.

Medical, dental, vision insurance

401(k) retirement savings plan

Paid time off

10 holidays per year

Paid parental leave

Relocation assistance

Meals in office

Job summary

Cowboy Space Corp. seeks a Battery Engineer to own spacecraft battery design from concept to flight. You will work with power electronics, avionics, thermal, mechanical, and software teams to deliver flight-ready battery hardware for harsh space environments.

The role emphasizes BMS development, module architectures, and integration testing, with thorough qualification and radiation considerations for space missions.

Qualifications

• 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.
• Knowledge of lithium-ion battery chemistry (NMC, NCA, LFP), degradation mechanisms, and safety considerations.
• Experience developing or integrating Battery Management Systems (BMS), including cell balancing, SOC/SOH estimation, and fault protection architectures.
• Experience with battery testing, characterization, and validation, including cycle life testing, performance characterization across temperature, and abuse/safety testing.
• Familiarity with battery modeling (equivalent circuit models or electrochemical models), lifecycle analysis, and performance prediction.
• Strong analytical and hands-on hardware debugging skills.

Responsibilities

• Own the architecture and development of spacecraft batteries from concept through flight qualification.
• Design battery packs, module architectures, and electrical interconnects to meet mission performance requirements.
• Develop a battery management system (BMS) including SOC/SOH estimation and fault protection architectures.
• Select battery chemistries based on mission requirements and environmental constraints.
• Perform battery sizing, degradation modeling, and lifecycle assessments.
• Develop charging/discharging strategies with power systems teams.
• Define thermal management requirements and address thermal runaway mitigation.
• Lead battery integration, validation, and environmental qualification testing.
• Investigate battery performance and root-cause failure analysis.
• Support manufacturing, supplier selection, and production readiness.
• Support spacecraft integration, launch campaigns, and on-orbit monitoring.

Skills

Battery design

BMS development

Systems integration

Thermal management

Test and validation

Fault analysis

Matlab/Simulink

Python

Education

BS, MS, or PhD in Electrical Engineering or related

Job description

Cowboy Space Corp. seeks a Battery Engineer to own spacecraft battery design from concept to flight. You will work with power electronics, avionics, thermal, mechanical, and software teams to deliver flight-ready battery hardware for harsh space environments.

The role emphasizes BMS development, module architectures, and integration testing, with thorough qualification and radiation considerations for space missions.