Systems Test Engineer

lunarenergy· Systems Engineering
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📍 Mountain View, CA

About this role

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.

Frequently Asked Questions

Is the salary disclosed for the Systems Test Engineer position at lunarenergy?
The salary for this Systems Test Engineer role at lunarenergy is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Systems Test Engineer position at lunarenergy located?
This Systems Test Engineer role at lunarenergy is based in Mountain View, CA. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Which team or department does the Systems Test Engineer at lunarenergy belong to?
This Systems Test Engineer position is part of the Systems Engineering department at lunarenergy. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Systems Test Engineer position at lunarenergy?
Click the "Apply Now" button on this page. You will be redirected to lunarenergy's official application portal hosted on greenhouse where you can submit your application directly.
When was the Systems Test Engineer job at lunarenergy posted?
This Systems Test Engineer position at lunarenergy was posted on May 12, 2026. Apply as soon as possible — early applications are often reviewed first.
Systems Test Engineer
lunarenergy
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