Lead Spacecraft Battery Engineer

Cowboy Space Corporation

San Carlos (CA)

On-site

USD 167,000 - 230,000

Full time

14 days+

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Benefits offered by this job

Equity in Cowboy Space Corp.

Medical, dental, and vision insurance

401(k) retirement savings plan

Paid time off

10 paid holidays per calendar year

Paid parental leave

Relocation assistance if applicable

Daily lunch in the office and kitchen

Job summary

Cowboy Space Corp. is seeking a Battery Engineer to own spacecraft battery design, development, integration, and qualification.

You will deliver high-performance energy storage for eclipse periods and peak-load events, collaborating with power electronics, avionics, thermal, mechanical, and software teams to field flight-ready battery hardware. The role emphasizes hands-on development from concept to flight, with focus on reliability, safety, and environmental qualification in the harsh space

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 interconnect design.
Knowledge of lithium-ion battery chemistries and safety considerations.
Experience developing or integrating Battery Management Systems (BMS).
Experience with battery testing, characterization, and validation.
Familiarity with battery modeling, 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 needs.
Develop a BMS with balancing, SOC/SOH estimation, and protection strategies.
Select chemistries based on mission requirements and trade-offs.
Perform sizing, degradation modeling, and DoD management for cycle life targets.
Develop charging/discharging strategies in coordination with power systems.
Define thermal management requirements and assist with safety measures.
Lead integration, validation, TVAC, and environmental testing.
Investigate performance, failures, and root-cause analysis.
Support manufacturing, supplier selection, and production readiness.
Support spacecraft integration, launch campaigns, and on-orbit monitoring.