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Test Engineer Internship Jobs in California (NOW HIRING)

ATOMS Careers page

Robotics Test Engineer

San Francisco, CA · On-site

$182K - $230K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

... and other robotics engineers * Build tools for technicians: visualization for status, test ... Minimum of 3 years of relevant non-internship work experience * Demonstrated ability to solve ...

Atoms

Robotics Test Engineer

San Francisco, CA · On-site

$182K - $230K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

... and other robotics engineers * Build tools for technicians: visualization for status, test ... Minimum of 3 years of relevant non-internship work experience * Demonstrated ability to solve ...

ATOMS Careers page

Robotics Test Engineer

San Francisco, CA · On-site

$182K - $230K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

... and other robotics engineers * Build tools for technicians: visualization for status, test ... Minimum of 3 years of relevant non-internship work experience * Demonstrated ability to solve ...

Arete Associates

Engineer 1 NPI Test

Healdsburg, CA · On-site

$75K - $110K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Internship, capstone, undergraduate research, Formula SAE, robotics, UAV, or other hands-on engineering project experience. * Familiarity with LabVIEW, MATLAB, Python, Git, or automated test ...

New

Xona Space

GNC Hardware Test Engineer

Burlingame, CA · On-site

$110 - $170/hr

GNC Hardware Test Engineer to help build, integrate, and validate sensor and test hardware for ... Internship, academic, research, or professional experience with spacecraft, UAVs, robotics ...

Innoflight

Manufacturing Test Engineer I

San Diego, CA · On-site

$80K - $100K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... internships/co-ops considered). * Working knowledge of Python programming. * Basic understanding of software debugging, scripting, and automated test methodologies. * Familiarity with laboratory ...

Innoflight LLC

Manufacturing Test Engineer I

San Diego, CA · On-site

$80K - $100K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... internships/co-ops considered). * Working knowledge of Python programming. * Basic understanding of software debugging, scripting, and automated test methodologies. * Familiarity with laboratory ...

SpaceX

Avionics Test Engineer (Starship)

Hawthorne, CA · On-site

$115K - $145K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

AVIONICS TEST ENGINEER (STARSHIP) The Components Test team develops the test and manufacturing ... internships, and traditional professional experience all qualify) * 1+ years of programming ...

SpaceX

Avionics Test Engineer (Starship)

Hawthorne, CA · On-site

$115K - $145K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

AVIONICS TEST ENGINEER (STARSHIP) The Components Test team develops the test and manufacturing ... internships, and traditional professional experience all qualify) * 1+ years of programming ...

SpaceX

Avionics Test Engineer (Starship)

Hawthorne, CA · On-site

$115K - $145K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

AVIONICS TEST ENGINEER (STARSHIP) The Components Test team develops the test and manufacturing ... internships, and traditional professional experience all qualify) * 1+ years of programming ...

Varda Space Industries

Integration and Test Engineer

El Segundo, CA · On-site

$110K - $160K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

S. degree in engineering, physics, or related field and 1+ years of experience (internships & projects included) in systems, integration, and/or test * Teamwork, communication, and problem solving in ...

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All JobsTest Engineer JobsTest Engineer Internship JobsTest Engineer Internship Jobs in California

Test Engineer Internship information

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How much do test engineer internship jobs pay per hour?

As of Aug 12, 2026, the average hourly pay for test engineer internship in California is $45.97, according to ZipRecruiter salary data. Most workers in this role earn between $34.42 and $58.37 per hour, depending on experience, location, and employer.

What does a test engineer internship do?

A test engineer internship involves assisting in the development and execution of test plans to evaluate software or hardware products. Interns learn to identify defects, document test results, and use testing tools and automation scripts under supervision, gaining practical experience in quality assurance processes.

What is a test engineer internship?

A Test Engineer Internship is a temporary, hands-on role where interns assist in testing software or hardware products to ensure quality and functionality. Interns typically work with test plans, execute test cases, document results, and report bugs. They may use automated or manual testing techniques and collaborate with developers to improve product performance. This internship provides valuable experience in debugging, quality assurance, and test automation. It helps build technical and analytical skills essential for a career in software or hardware testing.

What types of projects or tasks can I expect to work on during a test engineer internship?

As a Test Engineer Intern, you'll typically be involved in tasks such as writing and executing test cases, identifying software bugs, and helping automate testing processes to improve efficiency. You may collaborate closely with software developers and other testers to ensure features function as intended and meet quality standards. Interns often participate in regular team meetings, contribute to test documentation, and may even help design new testing frameworks or scripts. This hands-on involvement helps you build both technical and teamwork skills, offering valuable exposure to real-world product development cycles.

What are the key skills and qualifications needed to thrive in the test engineer internship position, and why are they important?

To thrive as a Test Engineer Intern, you generally need a foundation in computer science or engineering, analytical problem-solving skills, and familiarity with software development and testing principles. Experience with test automation tools (such as Selenium or JUnit), scripting languages, and version control systems is often beneficial, though not always required. Strong attention to detail, effective communication skills, and a willingness to learn new technologies help candidates stand out. These combined skills ensure accurate testing, clear reporting, and a smooth integration within engineering teams, which are critical for delivering high-quality products.

What are the most commonly searched types of Test Engineer jobs in California? The most popular types of Test Engineer jobs in California are:
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What job categories do people searching Test Engineer Internship jobs in California look for? The top searched job categories for Test Engineer Internship jobs in California are:
What cities in California are hiring for Test Engineer Internship jobs? Cities in California with the most Test Engineer Internship job openings:
Test Engineer Internship jobs near you
Infographic showing various Test Engineer Internship job openings in California as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 11% Part Time, 2% Temporary, 2% Contract, and 1% Nights. Highlights an 93% Physical, 1% Hybrid, and 6% Remote job distribution, with an average salary of $95,616 per year, or $46 per hour.

Mechanical Integration & Test Engineer

Mesh Optical Technologies

Gardena, CA • On-site

$110K - $135K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 22 days ago

Job description

MECHANICAL INTEGRATION & TEST ENGINEER
Mesh Optical Technologies was founded on the belief that optical photons will be at the center of advanced technologies in the coming century. Making advanced technology ubiquitous means building at scale, and that's exactly what we're doing at Mesh.
We are seeking a Mechanical Integration & Test Engineer to own the mechanical integration of machines, tooling, fixtures, and workstations across our production lines and development labs. Integration & Test Engineers at Mesh must have a working knowledge of design, manufacturing, and test operations across their domain. A successful engineer on this team demonstrates strong engineering intuition, critical thinking, and comfort working under ambiguous requirements with minimal oversight.
RESPONSIBILITIES
  • Own the mechanical integration of production equipment, tooling, fixtures, and workstations into high-volume manufacturing lines
  • Lead mechanical bring-up, debug, and ramp of new and modified production cells, resolving integration issues across mechanical, structural, and thermal boundaries
  • Define and maintain system-level mechanical interfaces between tools, fixtures, material handling systems, and factory infrastructure
  • Design, build, and qualify test fixtures, workholding, and mechanical hardware interfaces used for qualification, validation, and manufacturing
  • Evaluate proposed designs for manufacturability and mechanical integration, providing feedback on assembly sequence, access, tolerance stackups, and fixturing requirements
  • Develop and refine assembly procedures, integration sequences, and mechanical validation checklists based on build experience and lessons learned
  • Enable day-to-day execution of the mechanical integration and test flow on the production floor
  • Evaluate nonconformances to determine root cause and drive corrective action and system improvements
  • Maintain mechanical configuration of production lines, including tracking fixture revisions, tooling changes, and equipment modifications
  • Interface with both engineers and technicians to optimize manufacturing, assembly, and automation workflows

QUALIFICATIONS
  • Bachelor's degree in mechanical engineering or a related engineering discipline
  • 1+ years of hands-on mechanical design, assembly, test, or manufacturing experience (internships, co-ops, and substantive project experience qualify)
  • Ability to read and interpret engineering drawings, including GD&T
  • CAD proficiency (NX, SolidWorks, or equivalent)
  • Strong hands-on skills and comfort building, debugging, and modifying hardware in factory or lab environments
  • Demonstrated engineering intuition, critical thinking, and comfort with ambiguity
  • Willingness to work extended hours and weekends as needed

PREFERRED EXPERIENCE
  • Experience integrating multi-station production lines, factory automation systems, or complex electro-mechanical assemblies
  • Experience designing tooling, fixtures, or mechanical test hardware
  • Experience with precision mechanical assemblies or optomechanical systems
  • Familiarity with material handling systems, robotic pick-and-place, or automated alignment equipment
  • Experience writing assembly procedures, test plans, and providing go/no-go judgment and rationale
  • Documentation and configuration management experience in a production environment
  • Scripting or data analysis experience (e.g., Python, MATLAB)
  • Experience in a production environment with high attention to build quality and process discipline

COMPENSATION AND BENEFITS:
Pay range:
Mechanical Integration & Test Engineer: $110,000.00 - $135,000.00/per year
Title and base salary are determined on a case by case basis commensurate with experience and merit.
In addition to base salary, compensation for this role includes:
  • Eligibility for long-term incentives including company stock options and discretionary bonuses awarded for exceptional achievements.
  • Comprehensive medical, vision, and dental insurance with significant cost covered by the company for yourself and dependents.
  • Paid parental leave and flexible PTO (3 weeks accrued vacation and 10 company holidays per year).
  • 401(k) retirement plan access.
  • Relocation assistance to sunny Los Angeles.

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