ECU Test Engineer

PACCAR; Mount Vernon (WA); On-site; USD 77,700 - 116,200; Full time

Benefits offered by this job

401k with company match

Full pension plan

Paid time off: 10 vacation days + 12+<

Tuition reimbursement

Medical, dental, and vision plans

Flexible spending account

Disability insurance

Life insurance

EAP services

Job summary

PACCAR Electronics in Mount Vernon, WA is seeking an ECU Test Engineer to validate ECU software through hardware-in-the-loop testing, partnering with product development teams to ensure high-quality results and timely deliveries.

This role requires a Bachelor's degree in engineering or computer science, 1+ years of industrial experience, strong communication skills, and the ability to travel up to 10%, including international assignments. Automotive/testing experience is preferred.

Qualifications

• Bachelor's degree in engineering, computer science, or related technical discipline.
• 1+ years of relevant industrial experience.
• Willingness to travel up to 10%, including international travel.
• Excellent written and verbal communication skills.

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

Test planning

Automation testing

Communication skills

Travel willing

Education

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

Job description

United States, Washington, Mount Vernon

Jul 22, 2026

PACCAR Electronics is seeking a motivated and experienced ECU Test Engineer. Location: Mount Vernon, WA

About PACCAR

PACCAR, Inc. is a Fortune 500 companyestablishedin 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 nextgeneration 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, highvalue 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.

Qualifications & Skills

Required

• Bachelor's degree in engineering, computer science, or a related technical discipline.
• 1+ 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.
• 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

At PACCAR, we value talent and promote growth and development. We carefully consider numerous compensation factors including your education, training, or experience. The salary range for this role is $ 77,700.00 - $ 116,200.00 annually. This position is also eligible for a holiday gift. Additionally, this role is eligible for the full range of benefit options listed above.

PACCAR promotes equal employment opportunities by implementing policies and practices that ensure employees and applicants are not discriminated against because of their race, color, religious creed, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, mental or physical disability, medical condition, genetic information, military or veteran status or other legally protected status. This applies to recruitment, selection, placement, promotion, termination, rates of pay, and other conditions of employment.