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Senior Mechanical Design Engineer - Product Development HVAC Systems

Paccar

Kirkland, WA · Posted October 23, 2026

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This listing does not state pay. Across 43 open senior mechanical design engineer listings that state pay, the middle half runs $115,000 to $160,000 and the median is $145,000.

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About the job

Company Information:

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

Kenworth Truck Company:

Kenworth Truck Company, founded in 1923, is the manufacturer of The World’s Best® heavy and medium duty trucks. With an excellent heritage of quality, innovation and technology, Kenworth has played an essential role in the development of trucks that are more fuel efficient, productive, and economical to operate. Today, Kenworth is leading transportation innovation with the introduction of battery-electric vehicles, exploration of fuel cell electric powertrains, and autonomous driving systems. Kenworth is committed to fostering an environment of diversity, equality and inclusivity in the workplace.

Requisition Summary

Do you have a passion for new product vehicle design? Do you want to work on industry-leading products that are setting the bar for quality, industrial design, and customer ergonomics? Join a group of high-performing professionals who pride themselves in developing innovative truck systems. Kenworth design engineers focus on product development from conceptualization to implementation on the production floor. See your designs making a difference on the open highway!

Job Functions / Responsibilities

Develops production designs of Cabin Climate and HVAC systems using engineering skill and knowledge of truck regulations, operating, service and performance environments.

Utilize Creo Parametric® 3D modeling software to create complex assemblies & drawings that meet routing, structural, ergonomic and quality goals

Create rapid prototyped parts to quickly validate multiple design concepts

Apply creative thinking to design tasks and propose innovative approaches to standard work

Use Design for Six Sigma & engineering tools to validate designs – QFD, FMEA, DVP&R, GD&T, 1-D Stacks, FEA, etc.

Manage implementation of product changes by tracking project schedule, budget, and functional requirements throughout the entire life of the project

Work with the PACCAR Technical Center and external organizations to validate your designs

Work closely with multiple PACCAR divisions and outside suppliers. (Engineering, Ergonomics, Electrical, Manufacturing, Program Management, Quality, Tool Shops, Plant Assembly Line Operators, etc.)

Manage multiple priorities and goals simultaneously

Up to ~5-10% travel

Qualifications & Skills

BSME or equivalent engineering degree required; EIT certification is a plus

3-5 years of design experience (previous industry intern experience is desired)

Extensive 3D modeling software experience (Creo Parametric® knowledge is a plus)

Passion and excitement for customer focused human centered design

Understanding in use of Design for Six Sigma and Six Sigma techniques.

Ability to perform in a lean, fast-paced, results-oriented environment, while managing multiple priorities is a must

Excellent written and verbal communication skills with ability to present monthly status updates in front of engineering management teams

Competency in the use of personal computer software including project management tools, word processing, spreadsheets, and databases.

Willingness to learn and make use of new engineering processes and techniques and be resourceful in solving complex technical problems.

Past experience in product development and new product implementation necessary.

Ability to work in a team environment.

Candidates should have a willingness to grow personally and professionally and be results oriented.

Manufacturing plant experience desirable.

Knowledge of different fabrication methods - injection molded plastic, vacuum forming, soft-trim, sheet metal, etc. desirable

Why work for PACCAR/Kenworth? Global Fortune 500 Company with a wide array of growth and development opportunities. Work alongside experienced goal-oriented colleagues recognized as experts in their fieldsSupport and/or design the commercial vehicles of the future with a focus on emerging technologies such as electric and autonomous trucks.

As a U.S. PACCAR employee, you have a full range of benefit options including:

401k with up to a 5% company match

Fully funded pension plan that provides monthly benefits after retirement

Comprehensive paid time off – 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 accounts (FSA) and health savings 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 and E-Verify Employer. 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 the Senior Mechanical Design Engineer - Product Development HVAC Systems is $90,400 – $141,800 annually. Additionally, this role is eligible for the full range of benefit options listed above.PACCAR is an Equal Opportunity Employer/Protected Veteran/Disability and E-Verify Employer.