Demo

Systems Test Engineer

Lunar Energy
San Francisco, CA Full Time
POSTED ON 5/22/2026
AVAILABLE BEFORE 6/20/2026
System Integration and Test Lead Engineer

This role is on the front line of system integration between mechanical parts, electrical boards, low-level embedded firmware, and higher-level application logic. This is a highly technical role requiring experience with integrated hardware and embedded software. You will identify and solve cross-functional integration problems, and put in place hardware and software to perform automated system-level regression testing.

Lunar Energy was founded to transition homes to 100% clean energy—making our electricity greener, our air cleaner and our energy more safe, secure and reliable for all. We're a fast-growing, global company building the world's best clean energy products to electrify all homes and connect communities to form clean, resilient virtual power plants.

On a given day at Lunar, you'll likely…

  • Participate in designing new features, develop test cases.
  • Put together new hardware and firmware for the first time, instrument setups and perform manual tests and capture results.
  • Solve integration problems and create automated system-level regression tests.
  • Review firmware code and highlight limitations and add test cases and propose fixes.
  • Work side by side with your counterparts in EE, ME, FW, and Systems to release high-quality features with extensive regression testing.
  • Ensure the system meets its requirements and this behavior is robust across all corner cases
  • Work with team in root causing issues and perform tests to exercise limits
  • Define and implement hardware in the loop testing
  • Evaluate new tools and equipments to ease and improve testing.

Desired Skills:

  • Windows, Mac and Linux platform experience
  • Strong skills in Python related to scripts, control of devices etc.
  • Good understanding of C programming language in the interests of understanding device functionality.
  • At least a minimum understanding of CI/CD pipeline and data analysis tools (Jenkins, AWS, Grafana)
  • Ability to make things work, and a drive to break them
  • Demonstrated excellence in debugging complicated system-level behavior at the crossroads of electrical engineering and firmware
  • Outstanding written and verbal communication and the ability to smoothly work cross-functionally
  • A strong sense of ownership and responsibility towards delivering a great product.
  • Fluent in scripting/automation using Python
  • Experience with hardware in the loop testing
  • Able to read electrical schematics and device/component datasheets.
  • Experience with BMS, batteries, and power electronics desired
  • Experience with CAN, Wifi, Ethernet communications desired
  • BS in CS, EE, or equivalent

Benefits:

We're dedicated to creating a remarkable employee experience. At Lunar, competitive base pay is one part of our total compensation package. Lunar employees also have the opportunity to become Lunar shareholders by getting equity in a fast-growing company and participating in our employee stock program.

Additional benefits include:

  • Medical, dental, and vision insurance for employees and dependents
  • Flexible Paid Time Off plus 10 paid holidays
  • Tax deferred 401(k) plan
  • Paid parental leave for all full time employees including 12 weeks paid parental leave for the birthing mother and 6 weeks paid parental leave for the non-birthing parent
  • Subsidized EV charging and pre-tax commuter benefits

Our DE&I Philosophy: Lunar Energy is an equal opportunity employer. We are committed to attracting, developing and retaining diverse talent by supporting an inclusive workplace. Lunar recruits, hires, trains, promotes, compensates, and administers all personnel actions without regard to race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability status or any other status protected by applicable law.

Our Compensation Philosophy: Our goal is to ensure that all Lunar Energy employees are fairly compensated. Please note that the salary range information that follows is a good faith estimate for this position provided pursuant to the Pay Transparency for Pay Equity Act for California applicants. The salary range estimate for this position depending on level of experience is $120,000-$170,000 USD

The actual offer, reflecting the total compensation package & benefits, will be at the company's sole discretion, and determined by factors including but not limited to years of experience, job level, geographic location, and other relevant business considerations. The company also reserves the right to amend or modify this job description, employee perks, and benefits at any time.

Salary : $120,000 - $170,000

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Systems Test Engineer?

Sign up to receive alerts about other jobs on the Systems Test Engineer career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$72,265 - $83,772
Income Estimation: 
$84,546 - $99,351
Income Estimation: 
$86,680 - $110,316
Income Estimation: 
$110,730 - $135,754
Income Estimation: 
$117,033 - $148,289
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Lunar Energy

  • Lunar Energy San Francisco, CA
  • Lunar Energy is looking for an NPI Program Management Intern to support the planning and execution of hardware builds across our development cycle. You'll ... more
  • 3 Days Ago

  • Lunar Energy San Francisco, CA
  • This is a high-impact, high-trust role at the center of Lunar Energy's commercial organization. You'll be the operational backbone for the VP of Revenue an... more
  • 4 Days Ago

  • Lunar Energy San Francisco, CA
  • Test Engineering Technician (6 month contract) Engineering technicians will play an instrumental role in the success of Lunar Energy by helping to build an... more
  • 6 Days Ago

  • Lunar Energy Santa Clara, CA
  • Lunar Energy was founded to transition homes to 100% clean energy—making our electricity greener, our air cleaner and our energy more safe, secure and reli... more
  • 11 Days Ago


Not the job you're looking for? Here are some other Systems Test Engineer jobs in the San Francisco, CA area that may be a better fit.

  • Lever Middleware Test Company San Francisco, CA
  • Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, wh... more
  • 3 Days Ago

  • Adobe Systems San Francisco, CA
  • About the Role The Graph team is looking for a Senior Software Engineer, Test Automation who is passionate about building developer tooling and platforms t... more
  • 2 Days Ago

AI Assistant is available now!

Feel free to start your new journey!