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Integration Test Engineer Jobs in California (NOW HIRING)

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Integration Test Engineer information

See California salary details

$43.9K

$122.6K

$171.2K

How much do integration test engineer jobs pay per year?

As of Sep 7, 2026, the average yearly pay for integration test engineer in California is $122,648.00, according to ZipRecruiter salary data. Most workers in this role earn between $102,600.00 and $138,200.00 per year, depending on experience, location, and employer.

What is an integration test engineer?

Integration Test Engineers are professionals who specialize in verifying that different software modules or components work together correctly as a complete system. They design, implement, and execute test procedures to identify issues that may arise when integrating various parts of an application or system. Their role is crucial in ensuring the quality and reliability of software products before they are released to users. Integration Test Engineers often collaborate with developers and system architects to define test plans and resolve any integration issues found during testing.

What are the key skills and qualifications needed to thrive as an integration test engineer?

To thrive as an Integration Test Engineer, you need a strong background in software development, test methodologies, and system integration, often supported by a degree in computer science or a related field. Familiarity with test automation tools (such as Selenium or Jenkins), scripting languages, and continuous integration systems is typically required. Excellent analytical thinking, problem-solving abilities, and clear communication help you identify issues and collaborate effectively with development teams. These skills are crucial for ensuring seamless integration of software components, reducing defects, and delivering reliable systems.

What are some common challenges faced by integration test engineers when working with cross-functional teams?

Integration Test Engineers often work closely with development, QA, and operations teams to ensure that various software modules function seamlessly together. A common challenge is managing communication and expectations between teams, especially when modules are developed by different groups or vendors. Integration issues may arise due to inconsistencies in data formats, interfaces, or timing, requiring proactive problem-solving and clear documentation. Successful engineers excel at collaborating, coordinating test schedules, and providing detailed feedback to stakeholders, which helps streamline the integration process and resolve issues efficiently.

What is the difference between Integration Test Engineer vs Software Test Engineer?

AspectIntegration Test EngineerSoftware Test Engineer
Primary FocusTesting how different software modules work togetherTesting individual software components or features
Required SkillsKnowledge of integration processes, scripting, debuggingUnderstanding of testing methodologies, test case design
Work EnvironmentCollaborates with development teams during integration phasesWorks across various stages of software development, often independently
CertificationsISTQB, ISTQB Advanced Level, or similarISTQB, Certified Software Tester, or similar

While both roles focus on testing, Integration Test Engineers specialize in verifying the interaction between modules, whereas Software Test Engineers focus on testing individual components. Understanding these differences helps employers and candidates align skills with job requirements effectively.

What are popular job titles related to Integration Test Engineer jobs in California?

For Integration Test Engineer jobs in California, the most frequently searched job titles are:

What job categories do people searching Integration Test Engineer jobs in California look for?

The top searched job categories for Integration Test Engineer jobs in California are:

Integration Test Engineer jobs near you
Infographic showing various Integration Test Engineer job openings in California as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 13% Part Time, 2% Contract, and 1% Nights. Highlights an 91% Physical, 1% Hybrid, and 8% Remote job distribution, with an average salary of $122,648 per year, or $59 per hour.

Integration & Test Engineer - 093QE

Quartus Engineering

San Diego, CA • On-site, Remote

$138K - $230K/yr

Full-time

Medical, Dental, Vision, Retirement

Posted 28 days ago

Job description

About Quartus
Quartus Engineering Incorporated (www.quartus.com) is a leading provider of engineering services and integrated hardware solutions for a wide range of clients and industries. We employ advanced computer-aided engineering tools in the areas of optics, structural, thermal, and coupled analyses. We couple our engineering analysis capabilities with design, prototype, integration and test capabilities to create solutions for our clients that are of extraordinary value.
About Aerospace Sector
Quartus is a key contributor to aerospace advancements, specializing in engineering simulation and custom hardware. We've played a vital role in a diverse range of free space, launch and spacecraft projects including the NASA James Webb Space Telescope project for 17 years, covering design, analysis, and testing. Quartus is involved in leading in-space servicing, assembly, and manufacturing (ISAM) systems. Our expertise spans aircraft structural design, analysis, and testing, including support for FAA certifications. Quartus excels in commercial and defense aircraft applications, as well as custom optical systems like laser communications terminals and lidar payloads with both aerial and space applications.
What will you do?
As an Integration & Test Engineer in our Aerospace sector, you'll lead the build, alignment and test effort for high-performance optical systems developed for aerospace applications. In this hands-on, technical role you will work with other engineers, technicians and technical program managers to integrate various sub-components and sub-systems into electro-optical payloads, completing optical alignment, functional checks, performance verification, and environmental tests. You will collaborate with the design team to plan out AI&T activity, develop new tooling and processes, as well as create appropriate AI&T documentation. You'll collaborate closely with cross-disciplinary teams and act as a go-to technical resource within your area of responsibility.
Essential Job Functions:
  • Develop AI&T procedures for electro-optical payloads and sub-systems for a diverse range of applications such as spaceborne, airborne and ground systems used for laser communication, energy transfer, ranging, imaging and spectrography
  • Select COTS tools and test equipment, as well as develop custom tooling to support AI&T activity
  • Own challenging technical problems that arise during assembly and test
  • Develop risk reduction tests to support risk mitigation activity
  • Lead technical execution on AI&T programs including task delegation, technical oversight, design reviews, and customer communication
  • Mentor junior engineers and contribute to improving engineering standards and best practices
  • Support proposals, technical presentations, and customer design reviews

Location
Position is based in San Diego with a hybrid schedule.*
*The hybrid work arrangement is subject to change based on business needs including but not limited to training, performance, or other operational requirements. Any physical location change may impact future employment.
What are we looking for?
  • BS and/or MS in Mechanical Engineering or related field
  • 6+ years of experience in:
    • Integration and testing of high performance optical systems for aerospace applications
    • Development of AI&T documentation such as work instructions, travelers, alignment procedures and test plans
    • Mechanical, electrical and optical GSE development
    • GD&T application per ASME Y14.5M
    • CAD/CAE software (SolidWorks preferred)
  • Experience with optical alignment techniques in a lab setting
  • Experience with supporting environmental tests, such as vibration and TVAC
  • Must be a US Person (U.S. Citizen or Legal Permanent Resident)
Compensation and Benefits
Senior Engineer pay range: $114,443 - $190,738*
Lead Engineer pay range: $138,476 - $230,793*
*This range represents base pay. In addition, you may be eligible for additional benefits and compensation.
Referral eligibility: Tier 1
Quartus is an equal opportunity employer and we are committed to employing a diverse workforce, including, but not limited to, minorities, women, individuals with disabilities, and protected veterans. Quartus provides comprehensive benefits including competitive salary, discretionary performance-based bonus, employee stock ownership plan, medical, dental, vision, and 401k plan with company match.

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