Senior Mechanical Design Engineer - Product Development Structure and Interior Systems

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Date: Jun 29, 2026

Location: Kirkland, WA, US, 98033

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Company: PACCAR

Kenworth Truck Company

Kenworth Truck Company is the manufacturer of The World’s Best® heavy and medium duty trucks. Kenworth is an industry leader in providing fuel-saving technology solutions that help increase fuel efficiency and reduce emissions. The company’s dedication to the green fleet includes aerodynamic trucks, compressed and liquefied natural gas trucks.

Requisition Summary

Do you have a passion for new product interior 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 interiors. 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!

Kenworth offers unique career advancement opportunities ranging from engineering design, manufacturing operations, product planning, marketing, and many other business functions.

Kenworth's Cab/Outerbody Department is seeking multiple Mechanical Design Engineers. Please note that there are multiple vacancies and review some of the following job functions below:

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New Product Development Structure & Interior Systems/Sustaining Structures

Job Functions / Responsibilities

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

Work with industrial design groups to finalize styling intent surfaces and turn them into fully functional interior trim parts

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, Industrial Design, Ergonomics, Electrical, Manufacturing, Program Management, Quality, Tool Shops, Plant Assembly Line Operators, etc.)

Manage multiple priorities and goals simultaneously

Up to ~5-10% travel

Outerbody

Job Functions / Responsibilities:

Aerodynamic product enhancements, warranty and cost reduction projects that add to the overall profitability of the organization

Participate in and/or lead the design and development of structures-based projects in the Outerbody team

Utilize Creo Parametric to create optimized part and assembly models of moderate to complex designs requiring independent judgment

Work closely with the Industrial Design and Styling groups in the development of new or updated vehicle exteriors

Create rapid prototyped parts to quickly validate multiple design concepts

Employ Design for Six Sigma and engineering tools to validate designs: QFD, FMEA, DVP&R, GD&T

Work with the PACCAR Technical Center and external organizations to validate the designs through Finite Element Analysis, Computation Fluid Dynamics, and durability tests

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

Work closely with multiple PACCAR divisions

Manage multiple priorities and goals simultaneously

Travel up to 10%

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Qualifications & Skills

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

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

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

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

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

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 fields

Support 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

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 Senior Mechanical Design Engineer - Product Development Structure and Interior Systems is $90,400 - $141,800 annually. This position is also eligible for a holiday gift. Additionally, this role is eligible for the full range of benefit options listed above.

Nearest Major Market: Seattle

Nearest Secondary Market: Bellevue

Job Segment: Six Sigma, Lean Six Sigma, Industrial Design, Developer, Design Engineer, Management, Manufacturing, Technology, Engineering

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