Lead Engineer, Avionics Battery Test Long Beach, California

Relativity Space, Inc.; Long Beach (CA); On-site; USD 151,000 - 227,000; Full time

Benefits offered by this job

Competitive equity

PTO & sick leave

Parental leave

Learning stipend

Job summary

Relativity Space seeks a Lead of Avionics Battery Test Engineering to build and lead the team responsible for high-voltage battery testing across pack and cell levels. You will define test strategy, stand up lab infrastructure, and set safety procedures while recruiting and mentoring electrical engineers and test specialists.

You will oversee HV battery bring-up, structured testing programs, data systems, and rapid feedback to design teams, requiring hands-on lab work and strong leadership in a

Qualifications

• Bachelor's degree in engineering in a related field.
• Hands-on experience with battery test programs and energetics evaluation.
• Experience leading test engineering teams and developing engineers' skills.
• Strong safety mindset and ability to oversee high-energy, high-consequence tests.

Responsibilities

• Build and lead the Avionics Battery Test Engineering team.
• Define test strategy and establish lab infrastructure and safety standards.
• Oversee HV battery bring-up, pack- and cell-level testing, and data systems for rapid feedback.

Skills

Battery testing

HV systems

Lab instrumentation

Team leadership

Safety

Cross-functional collaboration

Test program execution

Data analysis

Education

Bachelor's degree in engineering

Tools

Battery test equipment

Cyclers

DAQ systems

Instrumentation hardware

Job description

About the Team:

The Avionics team is responsible for the full lifecycle of Terran R's nervous system, designing, building, testing, installing, and operating the hardware that connects and controls every major electrical system on the vehicle and ground. The team leverages close partnership between avionics design, manufacturing, and test to enable rapid iteration and feedback loops. Engineers are deeply embedded into other functions within Relativity, working closely with propulsion, GNC, fluids, and stage engineering teams to ensure seamless integration and operation. Now is a unique time to join: you'll get to help shape Terran R's fundamental avionics architecture and be given a high degree of ownership on components that will fly.

About the Role:

As the Lead of Avionics Battery Test Engineering, you will build and lead the team responsible for all high-voltage battery testing at Relativity, spanning performance, electrical, abuse, and destructive test programs at both the pack and cell level. You will stand up this capability from the ground up: defining the test strategy, building out lab and test infrastructure, establishing safety and procedural standards, and hiring and developing a team that includes electrical/performance test engineers and abuse/destructive test engineers, as well as cell-science expertise. You will oversee HV battery bring-up, pack- and cell-level testing, structured failure analysis, and the data systems that turn test results into rapid, high-quality feedback for design teams. This role requires a strong technical foundation in battery testing and energetics, hands-on lab expertise, and experience managing test teams in fast-paced development environments.

About You:

• Bachelor's degree in engineering (mechanical, electrical, chemical, aerospace, or related field)
• Extensive experience in battery testing, validation, or energetics system evaluation, including hands-on execution of test programs
• Strong understanding of battery physics, safety behavior, failure modes, and HV system fundamentals
• Experience defining and executing performance, durability, abuse, and destructive test programs
• Hands‑on experience with battery test equipment, cyclers, chambers, DAQ systems, and instrumentation hardware
• Experience with HV battery bring-up, sensor instrumentation, test fixture design, and test setup design
• 3+ years leading test engineering teams, including development of engineers' technical and leadership skills
• Strong safety mindset and comfort overseeing high-energy, high-consequence test operations
• Strong analytical, communication, and cross-functional collaboration skills

Nice to haves but not required:

• Bachelor's degree in engineering (mechanical, electrical, chemical, aerospace, or related field)
• Extensive experience in battery testing, validation, or energetics system evaluation, including hands-on execution of test programs
• Strong understanding of battery physics, safety behavior, failure modes, and HV system fundamentals
• Experience defining and executing performance, durability, abuse, and destructive test programs
• Hands‑on experience with battery test equipment, cyclers, chambers, DAQ systems, and instrumentation hardware
• Experience with HV battery bring-up, sensor instrumentation, test fixture design, and test setup design
• 3+ years leading test engineering teams, including development of engineers' technical and leadership skills
• Strong safety mindset and comfort overseeing high-energy, high-consequence test operations
• Strong analytical, communication, and cross-functional collaboration skills

At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.

Compensation is only one part of our total rewards package.
Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.

Hiring Range:

$151,000 - $227,000 USD

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.