Truck Software Diagnostics Tool Test Engineer

PACCAR Inc; Mount Vernon, Northern (WA, KY); Hybrid; USD 81,000 - 121,000; Full time

Benefits offered by this job

Competitive salary and 401k with up to

Fully funded pension plan

Comprehensive paid time off

Tuition reimbursement

Medical, dental, and vision plans

Flexible spending accounts and Health

Disability insurance

Life and AD&D insurance

EAP services

Growth opportunities

Collaborative work environment

Job summary

PACCAR seeks a Vehicle Software and Diagnostics Tool Test Engineer at the PACCAR Technical Center to drive the quality and performance of the DAVIE4 Service Tool, supporting Kenworth and Peterbilt trucks. You will perform vehicle and bench tests, coordinate projects, and validate results across teams.

You’ll help elevate test benches by integrating new hardware and enhancing automation scripts, ensuring tools stay sharp and ready for future vehicle software challenges.

Qualifications

• 3+ years of engineering experience
• Foundational understanding of software testing principles and test methodologies
• Familiarity with CAN protocols, especially J1939
• Ability to interpret simple to moderately complex electrical systems and schematics
• Strong collaboration skills and ability to work effectively in a team environment
• Proven ability to summarize technical issues and communicate clearly with diverse stakeholders
• Strong workload management skills, with flexibility and initiative to adapt to shifting project priorities

Responsibilities

• Perform vehicle and engine diagnostic software testing using both test benches and in‑vehicle setups
• Plan, coordinate, and execute small to moderate‑scope projects with minimal supervision
• Ensure all functionality is validated through comprehensive, executable test cases
• Recommend the most effective test method (bench or in‑vehicle) based on engineering judgment and system capabilities
• Validate defect fixes for closure and provide stakeholders with clear assessments of customer impact
• Foster strong communication and maintain productive working relationships across teams

Skills

Software testing principles

CAN/J1939 familiarity

Electrical schematics interpretation

Team collaboration

Education

BS degree in Computer Engineering, Electrical Engineering, Computer Science

Job description

PACCAR seeks a Vehicle Software and Diagnostics Tool Test Engineer at the PACCAR Technical Center to drive the quality and performance of the DAVIE4 Service Tool, supporting Kenworth and Peterbilt trucks. You will perform vehicle and bench tests, coordinate projects, and validate results across teams.

You’ll help elevate test benches by integrating new hardware and enhancing automation scripts, ensuring tools stay sharp and ready for future vehicle software challenges.