2,052,860open jobs
122,997companies
237,699added this week
Browse all
Salary
≈ $52k – $95k per year (Estimated)
Location
In office (Mountain View, San Francisco)
Seniority
Intern
Visa
H-1B filings in 12 months: 10 · green card filings: 8
Employment
Internship

Confirmed on the employer's own hiring board on Nov 2, 2026. First seen by Alion on Oct 29, 2026.

Overview
Company
Impact
Profile match
Lunar was founded to power homes around the world with endless clean energy. Explore the Lunar System, a solar and battery solution brilliantly designed to be powerful, simple and beautiful. So now you can use energy like it’s endless, because it is.
Backed by DCVC, Piva Capital

Hardware Test Engineering Intern (Spring 2027)

A Test Engineering Intern on the Reliability Testing team at Lunar Energy will be responsible for ensuring the validation of the product throughout the entire lifecycle of our revolutionary home energy products. We are looking for people who are passionate about a more sustainable and energy independent  future and want to make that vision a reality.

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:

  • Perform and execute various types of testing as part of our hardware validation process. 
  • Design and build test stands for PCBA testing 
    • Specify test stand equipment and instrumentation
    • Work with technicians for designing and building test stands
    • Write Python scripts to enable test automation and process data coming out of the test
      • Thoughtful use of AI assistants and coding tools (e.g., Claude, Gemini…etc) in your engineering workflow - including good judgment about when outputs need verification, awareness of confidentiality practices and a strong vision on how to structure your test code
  • For test failures and field failures, aid failure analysis investigations and countermeasure validation with design team, reliability team and failure analysis lab 
  • Collaborate with electrical, mechanical and firmware engineers across the company to develop thoughtful test methodologies 
  • Analyze test data, write test reports and help extract important takeaways from the data 
  • Contribute to various test infrastructure improvement efforts (ranging from contributing new features and functions to the codebase, creating custom test equipment…etc) 

Desired Skills

  • Bachelor’s degree in engineering in progress. Mechatronics or electrical engineering background preferred. 
  • Highly curious with hands-on project experience.
  • Working knowledge of programming, Python and object oriented programming experience preferred. 
  • Working knowledge of electronics/circuit analysis required, working knowledge of statics/mechanics of materials and heat and mass transfer is a plus. 
  • Experience with test equipment like power supplies, multimeters, DAQs, various sensors/instrumentation…etc preferred.
  • Familiarity with testing embedded/IoT systems or wireless communications (Wifi/mesh networks/BLE) is a plus.
  • Basic mechanical design experience/familiarity with CAD software and/or designing PCBAs is a plus.

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 hourly 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 hourly range estimate for this position depending on level of experience is $30-$40 USD

The actual offer, reflecting the total compensation package 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.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
2,052,860 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Industrial Engineering
Similar stack
Same company
Mountain View
HVAC Install Helper 2 hours ago
In office · Full-Time · 2+ years exp · Jupiter
Apply
$65k – $80k per year · In office · Full-Time · 2+ years exp · High School Diploma · New Glarus
Apply
Production Manager 4 hours ago
$95k – $115k per year · In office · Full-Time · 2+ years exp · High School Diploma · New Glarus
Life Sciences
GMP
Apply
In office · 2+ years exp · High School Diploma · Grand Rapids
Life Sciences
GMP
Apply
In office · Full-Time · 2+ years exp · Bachelor's Degree · Florence
Chips/EDA
Statistical Process Control
Apply
$153k – $204k per year · Equity · In office · Full-Time · 1+ year exp · Bachelor's Degree · Mountain View
DevOps
Windows
Apply
$147k – $196k per year · Equity · In office · Secret · 10+ years exp · Bachelor's Degree · Costa Mesa · Mountain View
Python
C#
AI/ML
Computer Vision
DevOps
Linux
Robotics
Sensor Fusion
Apply
$230k – $284k per year · Equity · In office · Full-Time · 10+ years exp · Bachelor's Degree · Mountain View
Chips/EDA
Statistical Process Control
JMP
Minitab
Design
SolidWorks
SpaceTech
CATIA
FMEA
Apply
In office · 6+ years exp · Mountain View
Apply
In office · 10+ years exp · Bachelor's Degree · Mountain View
AI/ML
Gemini
LLM
Apply
See all jobs
This is one of many
2,052,860 more open roles from verified company boards, updated every day.