PACCAR

Senior Diagnostic Software Engineer

PACCAR$114K — $179K *
Manufacturing & Automotive
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Electrical Engineering, Computer Science, Mechanical Engineering, or related field
  • 8+ years of experience with onboard diagnostic software development/testing for semi trucks
  • Proficiency with CAN, SAE J1939, LIN protocols, and programming languages like Python, Java, C++, and more
  • Strong problem-solving, communication, and documentation skills
  • Experience with data analysis, engineering tools, and test environments
  • Ability to thrive in a fast-paced, results-oriented environment
  • Leadership experience mentoring others and leading projects preferred

Responsibilities

  • Design, document, and implement diagnostic algorithms and software solutions
  • Provide architectural direction for diagnostic systems ensuring scalability and alignment with business needs
  • Develop guided diagnostic procedures using visual logic and Agile methodologies
  • Own and evolve diagnostic toolset requirements in collaboration with global stakeholders
  • Support manufacturing launch activities and drive cross-functional rollout efforts
  • Lead or contribute to complex technical problem solving and major projects
  • Create and review engineering specifications and technical documentation

Benefits

  • 401k with up to a 5% company match
  • Fully funded pension plan for post-retirement benefits
  • Comprehensive PTO including paid vacation, holidays, and sick time
  • Tuition reimbursement for continued education
  • Medical, dental, and vision plans for you and your family
  • Flexible spending and health accounts available
  • Paid short-and-long-term disability programs
  • Life and accidental death insurance
  • Employee Assistance Program (EAP) services including wellness and financial counseling
Full Job Description
PACCAR is seeking a Senior Diagnostic Engineer to lead the development of guided diagnostic procedures and vehicle diagnostic software for heavy-duty commercial vehicle electronics. This role supports product launch, drives continuous improvement, and collaborates across engineering, manufacturing, service, validation, IT, and suppliers to deliver reliable, user-focused diagnostic tools.

Location: Kirkland, WA

Job Responsibilities

  • Design, document, and implement diagnostic algorithms, software, interfaces, and toolset solutions.
  • Provide architectural direction for diagnostic systems and toolset capabilities, ensuring scalability, maintainability, and alignment with business and technical needs.
  • Develop guided diagnostic procedures using a visual logic development environment and Agile methods.
  • Own and evolve diagnostic toolset requirements, standards, and implementation approaches in collaboration with global stakeholders.
  • Support manufacturing launch activities and cross-functional rollout efforts.
  • Lead or contribute to major projects and complex technical problem solving.
  • Create and review engineering specifications, requirements, architecture definitions, and technical documentation.
  • Mentor others, support training needs, and contribute to technical roadmaps.
  • Work with global teams to address worldwide requirements and local content.
  • Collaborate closely with globally distributed teams, including Toolset EU, the Diagnostics team NA, and Vehicle Software Delivery ITD NA, to ensure alignment, effective coordination, and successful delivery of diagnostic solutions.


Qualifications & Skills

  • Bachelor's degree in Electrical Engineering, Computer Science, Mechanical Engineering, or a related field
  • 8+ years of experience with development and/or testing of onboard diagnostic software for semi trucks
  • Experience with CAN, SAE J1939, LIN, and object-oriented programming languages such as Python, Java, C++, C#, JavaScript/TypeScript, Ruby, or Swift.
  • Strong problem-solving, communication, and documentation skills.
  • Experience with data analysis, engineering tools, simulation, and test environments.
  • Ability to work in a fast-paced, results-oriented environment.
  • Willingness to travel up to 5% domestically or internationally.
  • Leadership experience mentoring others and running larger projects preferred.
  • Experience with Agile Scrum, continuous improvement, Lean, or Six Sigma methods preferred.
  • Active participation in professional organizations such as SAE, ASME, or IEEE preferred.
  • Experience creating simplified technical drawings and diagrams for production and service preferred.


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

The salary range for the Senior Diagnostic Software Engineer is $114,500 - $179,100 annually. Additionally, this role is eligible for a full range of benefit options listed above. This position is also eligible for a holiday gift.

About PACCAR

PACCAR Careers

Join the PACCAR team today and be part of a global leader known for its commitment to excellence and innovation in the automotive industry. At PACCAR, we offer a range of job opportunities that allow you to put your skills to work in a dynamic environment that fosters growth, leadership, and professional development.

Work You’ll Do

At PACCAR, we believe in empowering our employees to drive their career paths with robust support and resources. Engage in challenging projects that not only enhance your skills but also contribute to groundbreaking innovation and sustainable practices in the truck manufacturing industry.

Explore PACCAR’s Diverse Opportunities

Whether you're looking for a full-time position, an internship, or a leadership role, PACCAR has a place for you. Our team is composed of dedicated professionals who bring their unique perspectives and skills to the table every day. We are committed to diversity and provide comprehensive diversity training to ensure an inclusive culture where everyone feels valued.

Innovate and Lead

Join a company that is at the forefront of the transportation sector, where innovation leads to real-world solutions and market leadership. PACCAR is not just about trucks; it's about technological advancements that revolutionize how the world moves.

Grow and Develop

PACCAR is deeply invested in the professional growth of its employees. With access to cutting-edge tools and technologies, our team members enjoy unparalleled opportunities for career advancement and skill enhancement through continuous learning and development programs.

Benefits and Culture

PACCAR’s culture is built on a foundation of respect, integrity, and excellence. We offer competitive benefits to ensure the well-being of our employees and their families. From health and wellness programs to retirement plans, we provide the benefits that contribute to a healthy and secure future.

Join Our Team

Discover the wide range of employment opportunities at PACCAR. From engineering to sales, and from supply chain management to customer service, your next career step could be just around the corner. We are actively hiring and looking for ambitious individuals who are ready to make an impact.

Networking and Professional Development

At PACCAR, networking and professional development are part of our DNA. Connect with leaders and peers within the company through various networking events, mentorship programs, and professional groups. Enhance your resume and interview skills through our tailored career development sessions and become a prime candidate for advancement within the company.

Stay Connected

Keep up to date with the latest at PACCAR by joining our career network. Receive personalized job alerts and insider tips that match your interests and skills. Explore the exciting and rewarding career opportunities that await at PACCAR.

Search PACCAR Jobs

Ready to take the next step in your career? Search open positions that align with your skills and interests. We look for passionate, curious, and solution-driven team players who are ready to contribute to our legacy of quality and innovation.

Join PACCAR—where your career journey aligns with outstanding innovation and a thriving company culture.

Learn more about PACCAR
Size
28,500 employees
Market Cap
$34.6 billion
Industry
Net Income
$1.2 billion
Founded
1905
5 Year Trend
+6.7%
Revenue
$18.7 billion
NASDAQ

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