ECU Test Engineer

PACCAR; Mount Vernon (WA); On-site; USD 81,000 - 121,000; Full time

Benefits offered by this job

401k with up to a 5% company match

Fully funded pension plan

Comprehensive PTO - minimum of 10 paid

Tuition reimbursement

Medical, dental, and vision plans

Flexible spending account (FSA) and H

Disability programs

Life and accidental death and dismem

EAP services

Job summary

PACCAR Electronics is seeking an experienced ECU Test Engineer to validate software through Hardware-in-the-Loop testing at our Mount Vernon, WA location. You will partner with product development teams to drive software quality, improve test coverage, and ensure reliable systems that meet program schedules and customer expectations.

You will develop and execute test plans, collaborate across software, electrical, and control disciplines, and push for automation and process improvements while

Qualifications

• Bachelor’s degree in engineering, computer science, or a related technical discipline.
• 3+ years of relevant industrial experience.
• Ability to thrive in a fast-paced, results-driven environment, managing multiple projects and adapting to shifting priorities.
• Excellent written and verbal communication skills.
• Ability to travel up to 10%, including internationally.

Responsibilities

• Develop, execute, and maintain test plans and test cases to ensure full requirements coverage and high-quality software validation.
• Plan and manage testing activities within assigned domains, tracking progress and reporting status to stakeholders.
• Collaborate with cross-functional teams—including software development, electrical engineering, control system development, IT, and test engineering—to troubleshoot issues and ensure seamless integration.
• Continuously enhance testing processes by increasing automation, improving test efficiency, and implementing best practices for quality assurance.

Skills

Excellent written and verbal comms

Travel readiness (up to 10%, including

Fast-paced / results-driven work style

Project management under shifting pri-

Education

Bachelor’s degree in engineering, computer science, or a related technical discipline

Job description

PACCAR Electronics is seeking a motivated and experienced ECU Test Engineer.

Location: Mount Vernon, 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.

Job Summary

The Hardware-in-the-Loop (HIL) Test Engineer will be responsible for validating PACCAR Electronics-developed ECU software through HIL testing. This role partners closely with product development teams to drive software quality, enhance test coverage, and deliver reliable systems that meet program schedules, budget targets, and customer expectations.

Job Responsibilities

• Develop, execute, and maintain test plans and test cases to ensure full requirements coverage and high-quality software validation.
• Plan and manage testing activities within assigned domains, tracking progress and reporting status to stakeholders.
• Collaborate with cross-functional teams—including software development, electrical engineering, control system development, IT, and test engineering—to troubleshoot issues and ensure seamless integration.
• Continuously enhance testing processes by increasing automation, improving test efficiency, and implementing best practices for quality assurance.

Required

Qualifications & Skills

• Bachelor’s degree in engineering, computer science, or a related technical discipline.
• 3+ years of relevant industrial experience.
• Ability to thrive in a fast-paced, results-driven environment, managing multiple projects and adapting to shifting priorities.
• Excellent written and verbal communication skills.
• Ability to travel up to 10%, including internationally.

Preferred

• Experience with automotive or commercial vehicle system design and release, or hands-on experience in software testing and validation.
• Demonstrated ability to solve complex technical problems using Lean, Six Sigma, or similar structured methodologies.
• Familiarity with Automotive SPICE (Software Process Improvement and Capability Determination) processes.
• Advanced degree or Professional Engineer (PE) licensure.

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 ECU 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.