Software Integration & Test Engineer

• Perform tests of embedded software using simulated environments per the design of the software for next-generation electronic control units.

Contribute to the resolution of defects as assigned.

• Create, maintain, and execute test cases aligned with software requirements to validate integration of embedded software modules.
• Verify defect fixes and perform final integration testing prior to hardware-in-the-loop or system-level testing.
• Continuously assess testing effectiveness and recommend improvements by analyzing metrics and insights throughout the SDLC/STLC.
• Design and implement test automation frameworks, harnesses, and reusable code libraries to streamline testing across multiple projects.
• Develop automated test tools-including scripts, utilities, simulators, and data sets-to support robust and scalable test automation.
• Execute automated test suites, analyze results, and document findings to support defect resolution and quality improvements.
• Contribute to the creation and refinement of procedures, best practices, and standards that strengthen the reliability and quality of delivered software systems.

Integration Testing, Software Testing, Integration Testing, Electronics, Software Testing, Software Engineering, Information Technology & Information Systems, Diesel Engine, Financial Services, Technical Leadership, Required

• Bachelor’s degree in Computer Engineering, Software Engineering, Electrical Engineering, Computer Science, or a related technical field.
• 3+ years of software testing experience.
• Strong willingness to learn and apply new software engineering quality processes, methodologies, and tools.
• Ability to analyze, interpret, and work with software requirement specifications.
• Effective team collaborator with strong communication and problem-solving skills.
• Proficiency with common PC software tools (e.g., project management applications, word processing, flowchart/modeling tools, presentations, spreadsheets, databases).
• Growth-oriented mindset with the ability to thrive in a results-driven environment.
• Ability to travel up to 10%, including internationally.

Preferred

• Proficiency in scripting languages such as Python.
• Experience in automotive, commercial vehicle, or similar industry-related software development environments.
• Hands-on experience with embedded software development using C++, MATLAB/Simulink, Kanzi, or IBM Rational Rhapsody.
• Experience working with:
• Test Management tools (e.g., HP Quality Center, IBM Rational QM)
• Test Automation tools/environments (e.g., dSPACE)
• Network and calibration tools (e.g., Vector CANalyzer/CANoe, ATI Vision)
• Requirements Management platforms
• Engineering knowledge of heavy-duty commercial truck systems and related regulations.

PACCAR Benefits

• 401k with up to a 5% company match
• Fully funded pension plan that provides monthly benefits after retirement
• Comprehensive PTO - minimum of 10 paid vacation days (additional days are provided with additional seniority/years of service), 12 paid holidays, and sick time
• Tuition reimbursement for continued education
• Medical, dental, and vision plans for you and your family
• Flexible spending account (FSA) and health account (HSA)
• Paid short-and-long-term disability programs
• Life and accidental death and dismemberment insurance
• EAP services include wellness plans, estate planning, financial counseling and more

Additional Job Board Information

PACCAR is an Equal Opportunity Employer/Protected Veteran/Disability. At PACCAR, we value talent and promote growth and development. We carefully consider numerous compensation factors, including your education, training, or experience. Applicants and employees for this position will not be sponsored for work authorization, including, but not limited to H-1B visas, now or in the future. The salary range for the Software Integration & Test Engineer is $80,800 - $120,800 annually. Additionally, this role is eligible for a full range of benefit options listed above. This position is also eligible for a holiday gift.

Nearest Major Market: Seattle

Nearest Secondary Market: Bellevue

Job Segment: Test Engineer, Construction, Testing, Embedded, Electrical, Engineering, Technology

PACCAR Electronics is seeking a motivated and experienced Software Integration Test Engineer based in Kirkland, WA.

About PACCAR

PACCAR, Inc. is a Fortune 500 company established in 1905 and is recognized as a global leader in the commercial vehicle, financial, and customer service fields. PACCAR is a global technology leader in the design, manufacture, and customer support of high-quality light-, medium- and heavy-duty trucks under its internationally recognized brands Kenworth, Peterbilt and DAF nameplates. PACCAR designs and manufactures advanced diesel engines and provides customized financial services, information technology and truck parts related to its principal business.

About Global PACCAR Electronics

The Global PACCAR Electronics organization supports Kenworth, Peterbilt, and DAF by transforming how control systems and vehicle software are developed for commercial vehicle applications. GPE designs next-generation vehicle controls, display systems, and autonomous technologies that raise the bar for customer productivity and safety.

Whether on highways, construction sites, urban centers, or forest roads, PACCAR trucks are recognized for exceptional quality and performance. PACCAR Electronics is central to these product identities-delivering innovations from advanced PTO functionality to intuitive, high-value digital displays. Join us as we grow and deliver PACCAR’s future in connectivity, cybersecurity, electrification, and autonomous systems.