Test Engineer Internships
Test engineer internships give university students, recent graduates, and early-career switchers hands-on project experience, mentorship from working engineers, and, at many employers, a path toward a full-time offer. Openings are concentrated across Manufacturing, Technology & Software, and Telecommunications, with Tesla, TikTok, and Nokia among the employers posting roles now.
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About Redwood Materials
Redwood is localizing a global battery supply chain that seamlessly integrates recovery, reuse, and recycling — keeping critical minerals in circulation and driving the energy transition. Founded in 2017, we’re delivering low-cost and large-scale energy storage and producing battery materials in the U.S. for the first time, all from batteries we already have.
Test Automation Engineering Intern
Redwood Energy is building some of the fastest, lowest-cost energy storage in the U.S. from both new battery modules and second-life EV packs. Second-life hardware arrives with a history — different chemistries, capacities, and states of health — and every unit has to be proven safe and reliable before it ships. That proof comes from test: the automated systems that exercise the firmware and electronics inside our products and decide whether they're ready for the field.
Our test engineering team builds those systems — the test stands on the production floor, the hardware-in-the-loop benches that validate firmware releases, and the CI pipelines that tie them together. As a Test Automation Engineering Intern, you'll work alongside our engineers building the next generation of this test capability. You'll write Python that drives real instruments and real battery hardware, help bring up new test stands from the bench up, and debug failures where the root cause could live in the test code, the firmware, or the unit under test. This is a great opportunity to apply what you've learned in coursework to production test systems, with mentorship from experienced engineers along the way.
Responsibilities will include:
- Test Automation: Write and maintain Python test automation for firmware and hardware validation, using pytest and our internal test frameworks.
- Instrument Control: Develop drivers and tooling for programmable power supplies, electronic loads, data acquisition, and switching hardware over protocols like SCPI, CAN, and Modbus.
- Test Stand Bring-Up: Help bring up new test stands — from fixtures and wiring through the software that sequences them — as we expand our validation capability.
- System Debugging: Investigate real failures on real equipment, using CAN traces, instrument logs, and bench tools to determine whether the fault lies in the test code, the fixture, or the unit under test.
- Continuous Integration: Add regression coverage to our CI pipelines so firmware changes are validated automatically rather than by hand.
- Documentation & Process: Contribute to documentation and test processes that support taking test systems from prototype toward production.
- You'll own a scoped project end to end and present your results to the engineering team at the close of the internship.
Desired Qualifications:
- Background: Currently pursuing a BS or MS in Electrical Engineering, Computer Engineering, Computer Science, Mechatronics, or a related field.
- Programming Foundations: Working proficiency in Python, including comfort reading and modifying a codebase you did not write.
- Testing Experience: Experience writing automated tests with pytest or a comparable framework, from coursework, projects, or prior internships.
- Version Control: Experience with Git and a pull-request-based development workflow.
- EE Fundamentals: Solid grasp of circuit basics — voltage, current, resistance, and power, and how they relate — sufficient to predict what a measurement should read and recognize when it doesn't.
- Hardware Fundamentals: Able to read a schematic, wiring diagram, or datasheet and act on it; hands-on experience working safely around energized equipment — power supplies, loads, or battery hardware — from lab work, projects, or prior internships.
- Communication Protocols: Familiarity with CAN, Modbus, SCPI, or other instrument and industrial protocols is a plus, even if only from classwork or personal projects.
- Linux: Familiarity with the Linux command line is a plus.
- Curiosity & Rigor: A safety-conscious mindset, strong attention to detail, and eagerness to learn how production test systems are built. Prior industry or energy storage experience is not expected.
In accordance with California pay transparency laws, the salary range for this position is listed below. Actual compensation may vary based on a variety of factors, including experience, education, and skills.
California Pay Range:
$41 - $47.50 USD
The position is full-time. Compensation will be commensurate with experience.
We collect personal information (PI) from you in connection with your application for employment with Redwood Materials, including the following categories of PI: identifiers, personal records, professional or employment information, and inferences drawn from your PI. We collect your PI for our purposes, including performing services and operations related to your potential employment. If you have additional privacy-related questions, please contact us at privacy@redwoodmaterials.com.
About Redwood Materials
Redwood is localizing a global battery supply chain that seamlessly integrates recovery, reuse, and recycling — keeping critical minerals in circulation and driving the energy transition. Founded in 2017, we’re delivering low-cost and large-scale energy storage and producing battery materials in the U.S. for the first time, all from batteries we already have.
Test Automation Engineering Intern
Redwood Energy is building some of the fastest, lowest-cost energy storage in the U.S. from both new battery modules and second-life EV packs. Second-life hardware arrives with a history — different chemistries, capacities, and states of health — and every unit has to be proven safe and reliable before it ships. That proof comes from test: the automated systems that exercise the firmware and electronics inside our products and decide whether they're ready for the field.
Our test engineering team builds those systems — the test stands on the production floor, the hardware-in-the-loop benches that validate firmware releases, and the CI pipelines that tie them together. As a Test Automation Engineering Intern, you'll work alongside our engineers building the next generation of this test capability. You'll write Python that drives real instruments and real battery hardware, help bring up new test stands from the bench up, and debug failures where the root cause could live in the test code, the firmware, or the unit under test. This is a great opportunity to apply what you've learned in coursework to production test systems, with mentorship from experienced engineers along the way.
Responsibilities will include:
- Test Automation: Write and maintain Python test automation for firmware and hardware validation, using pytest and our internal test frameworks.
- Instrument Control: Develop drivers and tooling for programmable power supplies, electronic loads, data acquisition, and switching hardware over protocols like SCPI, CAN, and Modbus.
- Test Stand Bring-Up: Help bring up new test stands — from fixtures and wiring through the software that sequences them — as we expand our validation capability.
- System Debugging: Investigate real failures on real equipment, using CAN traces, instrument logs, and bench tools to determine whether the fault lies in the test code, the fixture, or the unit under test.
- Continuous Integration: Add regression coverage to our CI pipelines so firmware changes are validated automatically rather than by hand.
- Documentation & Process: Contribute to documentation and test processes that support taking test systems from prototype toward production.
- You'll own a scoped project end to end and present your results to the engineering team at the close of the internship.
Desired Qualifications:
- Background: Currently pursuing a BS or MS in Electrical Engineering, Computer Engineering, Computer Science, Mechatronics, or a related field.
- Programming Foundations: Working proficiency in Python, including comfort reading and modifying a codebase you did not write.
- Testing Experience: Experience writing automated tests with pytest or a comparable framework, from coursework, projects, or prior internships.
- Version Control: Experience with Git and a pull-request-based development workflow.
- EE Fundamentals: Solid grasp of circuit basics — voltage, current, resistance, and power, and how they relate — sufficient to predict what a measurement should read and recognize when it doesn't.
- Hardware Fundamentals: Able to read a schematic, wiring diagram, or datasheet and act on it; hands-on experience working safely around energized equipment — power supplies, loads, or battery hardware — from lab work, projects, or prior internships.
- Communication Protocols: Familiarity with CAN, Modbus, SCPI, or other instrument and industrial protocols is a plus, even if only from classwork or personal projects.
- Linux: Familiarity with the Linux command line is a plus.
- Curiosity & Rigor: A safety-conscious mindset, strong attention to detail, and eagerness to learn how production test systems are built. Prior industry or energy storage experience is not expected.
In accordance with California pay transparency laws, the salary range for this position is listed below. Actual compensation may vary based on a variety of factors, including experience, education, and skills.
California Pay Range:
$41 - $47.50 USD
The position is full-time. Compensation will be commensurate with experience.
We collect personal information (PI) from you in connection with your application for employment with Redwood Materials, including the following categories of PI: identifiers, personal records, professional or employment information, and inferences drawn from your PI. We collect your PI for our purposes, including performing services and operations related to your potential employment. If you have additional privacy-related questions, please contact us at privacy@redwoodmaterials.com.
Test Engineer Internship Market
Who's Hiring
Top Industries Hiring
- Manufacturing
- Technology & Software
- Telecommunications
- Electronics & Hardware
Tips for Your Test Engineer Internship Search
Apply earlier than the posting suggests
Large employers open summer intern recruiting the fall before the start date, often closing roles months ahead of the term. Smaller companies and co-op programs post closer to start dates. Check listings regularly starting in late summer so you catch structured programs before their first-round deadlines.
Build a portfolio before you send a single application
Hiring teams for test engineer internships want evidence of hands-on work, not just a list of tools. Document two or three projects with the frameworks you used, the bugs you found, and the test cases you wrote, then link to a public repository so recruiters can see the actual work.
Work your campus network alongside direct applications
Campus career fairs surface structured programs tied to your university, and professors or career center staff often know which employers recruit from your school before roles post publicly. Apply directly to companies running smaller cohorts at the same time so you reach employers that do not attend fairs.
Practice the technical screen out loud before interviewing
Test engineer intern interviews typically include a coding screen covering data structures, algorithms, and debugging, often in Python or Java. Practice solving problems out loud and explaining your reasoning step by step, since interviewers weigh how you think through a problem as much as the final answer.
Target structured internship programs built for newcomers
Many larger technology and hardware companies run dedicated quality engineering or test engineering cohort programs designed to train people new to the field. These programs recruit early, fill fast, and often include dedicated mentorship and rotation. Identify the ones that fit your background and apply in their first application wave.
Set your work-type filter before you start searching
On-site roles are 100% of the test engineer internships listed here. Decide what you can realistically commit to before you start applying so you are not sorting through roles in locations or formats that do not work for your situation. Use Migrate Mate's work-type filter to narrow results immediately.
Test Engineer Internships: Frequently Asked Questions
How do I get a test engineer internship?
Lead with coursework and personal projects rather than work history, since hiring teams expect limited experience at the intern level. The concrete artifact that gives recruiters something to assess is a portfolio of documented test cases, bug reports, or automation scripts in a public repository. Combine direct applications with campus career fairs, where recruiters often move faster for students they meet in person.
Can a test engineer internship turn into a full-time job?
Many employers extend return offers to strong interns, but conversion is never guaranteed. What actually drives it is performance on real work, open headcount at the end of the term, and how early you signal interest in returning. Position for a return offer by treating every assignment as permanent-hire work without counting on the outcome.
When should I apply for test engineer internships?
Earlier than most expect. Large employers recruit summer interns the preceding fall, with application windows opening as early as August or September. Smaller companies and co-op programs post closer to start dates, so openings appear year-round. Checking listings regularly rather than waiting for a single season gives you the widest selection of roles.
Are test engineer internships paid?
Most professional test engineer internships in the U.S. are paid. Compensation varies by company size, industry, and location. Listings show pay where the employer chooses to disclose it, so you can compare across roles as you apply.
What should a test engineer internship resume include?
Lead with projects, not work history. Include two or three complete, documented projects that show the tools you used and link to the work, such as a public repository of automated test scripts, bug-tracking samples, or a quality assurance case study. Add relevant coursework in software testing, systems, or programming. Keep the whole document to one page.
Are there remote test engineer internships?
Yes. Remote and hybrid roles make up 0% of the test engineer internship listings here, with the rest on-site. Remote cohorts fill fast, so apply early and filter by work type to see them before they close.
Can international students get test engineer internships?
Yes. F-1 students can intern through CPT while enrolled or through OPT work authorization after finishing a degree, and the employer does not have to file anything for either, so many companies are open to international interns. Confirm your eligibility and timing with your university's international student office before accepting an offer.
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