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Prototype Engineer Jobs in Seattle, WA (NOW HIRING)

Sigma Design

Principal Manufacturing Engineer

Redmond, WA · On-site

$136K - $180K/yr

The Principal Manufacturing Engineer develops and scales manufacturing processes for advanced hardware prototypes from concept through pilot production. This role partners with cross-functional ...

Summation

Senior Design Engineer

Bellevue, WA · On-site

$100 - $130/hr

Prototype end-to-end product ideas in code, validate with real data, and graduate winners into ... Mentor engineers and designers on interaction patterns, system thinking, and front-of-frontend ...

Helion Energy

Principal Capacitor Engineer

Everett, WA · On-site

$214K - $255K/yr

Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million ... What You Will Be Doing As a Principal Capacitor Design Engineer at Helion, you will lead the design ...

HiddenLayer

Lead Engineer, AI Attack Simulation

Seattle, WA · On-site +1

$116K - $153K/yr

Remain hands-on with critical architecture, prototyping, implementation, and complex technical problem-solving. * Mentor engineers, lead technical reviews, support hiring, and raise standards for ...

New

SRI Tech Solutions Inc

DevOps Engineer

Redmond, WA · On-site

$59 - $81/hr

... s Engineer - Location: Redmond, WA (Onsite) - Key Skills: Firmware Development IDE Knowledge ... Experience as a team lead, experience working on devices/prototypes - Main Responsibilities:

Amazon

Sr. FPGA Engineer, Amazon Leo

Redmond, WA

$145K - $187K/yr

Our silicon group develops cutting-edge FPGA prototypes and ASIC designs for advanced satellite communication systems. Position Overview: We are seeking an experienced Sr. FPGA Engineer to join our ...

Boutique Recruiting

Product Engineer III

Bothell, WA · On-site

$120K - $130K/yr

Develop prototypes and conduct design validation and process validation testing * Lead design for manufacturability and design for assembly reviews in partnership with manufacturing engineering

Zetec, Inc.

Mechanical Engineer Supervisor

Snoqualmie, WA · On-site

$108K - $135K/yr

Oversees prototype testing to evaluate the performance, reliability, and safety of mechanical ... Ongoing engineering support of released products including design enhancements, customizations ...

Kosmos

Mechanical Engineer

Seattle, WA

$90K - $140K/yr

Responsibilities will include a mechanical design for a broad range of prototype, pre commercial ... Bachelors or Master of Science Mechanical Engineering, preferred, (ABET Accredited) * Four + years ...

Amazon

Sr. FPGA Engineer, Amazon Leo

Redmond, WA · On-site

$145K - $187K/yr

Our silicon group develops cutting-edge FPGA prototypes and ASIC designs for advanced satellite communication systems. Position Overview: We are seeking an experienced Sr. FPGA Engineer to join our ...

Verathon, Inc.

AI Engineer

Bothell, WA

$115K - $231K/yr

The AI Engineer partners closely with AI Business Partners and the AI Solutions Architect to ... Prototype rapidly, iterate based on user feedback, and deliver production-ready AI solutions with ...

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Showing results 41-60

All JobsPrototype Engineer JobsPrototype Engineer Jobs in Seattle, WA

Prototype Engineer information

See Seattle, WA salary details

$33

$41

$44

How much do prototype engineer jobs pay per hour?

As of Aug 9, 2026, the average hourly pay for prototype engineer in Seattle, WA is $41.51, according to ZipRecruiter salary data. Most workers in this role earn between $39.13 and $43.75 per hour, depending on experience, location, and employer.

What are some common challenges prototype engineers face when transitioning designs from concept to functional prototypes?

Prototype Engineers often encounter challenges such as interpreting incomplete or evolving design specifications, sourcing unconventional materials, and working within tight deadlines. Close collaboration with design, engineering, and manufacturing teams is essential to resolve technical issues quickly and ensure the prototype aligns with the intended functionality. Flexibility and creative problem-solving are key, as unexpected obstacles frequently arise during the rapid iteration and testing phases.

What is a prototype engineer?

A Prototype Engineer is a professional who designs, builds, and tests early versions of products or components to evaluate their functionality and performance before mass production. They collaborate with designers, engineers, and product managers to turn concepts into tangible prototypes, using a variety of fabrication techniques and materials. Their work helps identify potential design improvements, troubleshoot issues, and ensure that the final product meets technical and user requirements.

What are the key skills and qualifications needed to thrive as a prototype engineer, and why are they important?

To thrive as a Prototype Engineer, you need strong skills in mechanical or electrical engineering, rapid prototyping techniques, and a relevant engineering degree. Familiarity with CAD software, 3D printing technologies, and hands-on fabrication tools is typically required, along with knowledge of prototyping standards. Creativity, problem-solving, and effective communication are essential soft skills to excel in cross-functional teams and adapt to evolving project requirements. These abilities enable successful design iteration, effective collaboration, and efficient transition from concept to functional prototype.

What does a prototype engineer do?

A prototype engineer is part of a product development team that designs prototypes for new kinds of industrial products. Many companies employ design engineers to perform numerous technical duties, such as drawing up schematics and blueprints, overseeing the production of prototypes, and testing those prototypes to decide whether they should enter mass production. The career requires significant educational qualifications and a variety of skills and experience. You should have an engineering degree in the field you wish to enter, strong analytical problem-solving, and the ability to work as part of a large team.

More about Prototype Engineer jobs
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What job categories do people searching Prototype Engineer jobs in Seattle, WA look for? The top searched job categories for Prototype Engineer jobs in Seattle, WA are:
What cities near Seattle, WA are hiring for Prototype Engineer jobs? Cities near Seattle, WA with the most Prototype Engineer job openings:
Prototype Engineer jobs near you
Infographic showing various Prototype Engineer job openings in Seattle, WA as of August 2026, with employment types broken down into 88% Full Time, 6% Part Time, and 6% Contract. Highlights an 100% In-person job distribution, with an average salary of $86,339 per year, or $41.5 per hour.

Principal Manufacturing Engineer

Sigma Design

Redmond, WA • On-site

$136K - $180K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 16 days ago

Job description

Principal Manufacturing Engineer
(Contract)

Sigma Design has collaborated with a consumer electronics company seeking an experienced Principal Manufacturing Engineer to join their facility in Redmond, WA. This position is a contract with an expected duration of 12 months. This role is In-Office.
While on contract you are eligible for:
  • The hiring range for this role is typically between $136,000 and $159,000 annually, with the full range extending to $180,000 annually, based on experience, internal equity, and career progression
  • Monday – Friday, 8:00 am – 5:00 pm
  • Multiple options for medical insurance and dental insurance including some with FSA and HSA
  • 401(k) with up to 4% company match
  • 15-days of accrued PTO and 9 company paid holidays
  • Voluntary benefits: vision, long-term disability, and life insurance

Primary Function:
The Principal Manufacturing Engineer develops and scales manufacturing processes for advanced hardware prototypes from concept through pilot production. This role partners with cross-functional engineering teams to design, build, and validate reliable, high-performance prototype systems while driving Design for Manufacturing, system integration, and process development. The ideal candidate is comfortable leading technical initiatives in a fast-paced R&D environment with evolving requirements and emerging technologies
Essential Job Functions - Responsibilities:
  • Develop and scale manufacturing processes from concept through pilot production for advanced hardware prototypes
  • Lead manufacturing engineering activities, system integration efforts, and Design for Manufacturing (DFM/DFx) initiatives across cross-functional teams
  • Design and implement process development plans, including Design of Experiments, process validation, and quality control strategies
  • Develop manufacturing processes, tooling, fixtures, work instructions, and process documentation to support prototype builds
  • Collaborate with design, mechanical, electrical, and software engineers to improve manufacturability and product performance
  • Evaluate and implement manufacturing techniques for electromechanical assemblies, polymer processing, adhesives, lamination, textiles, and related fabrication methods
  • Support the growth of in-house manufacturing capabilities and collaborate with external manufacturing partners
  • Troubleshoot manufacturing challenges and drive continuous process improvements
  • Mentor junior engineers and provide technical leadership on manufacturing projects
  • Follow Business Technology policies to protect sensitive data and reduce information security occurrences

Education and Experience: (Knowledge, Skills, & Abilities)
  • Bachelor's Degree in Manufacturing Engineering, Mechanical Engineering, Mechatronics, Process Engineering, or a related field; Master's degree preferred
  • 8+ years of experience developing manufacturing processes and scaling products from concept to pilot production or manufacturing
  • Experience designing process development plans, Design of Experiments (DOE), and implementing quality control procedures
  • Strong understanding of Design for Manufacturing (DFM), Design for Assembly (DFA), or Design for Excellence (DFx)
  • Experience with a variety of manufacturing processes, including electromechanical integration, polymer processing, adhesives, lamination, textiles, or related manufacturing techniques
  • Demonstrated project leadership and experience working with cross-functional engineering teams
  • Proficiency with CAD software (NX or similar) and Microsoft Office applications
  • Strong written and verbal communication skills with the ability to thrive in a collaborative, fast-paced R&D environment
  • Demonstrate commitment and adherence to Sigma Design Core Values
  • Compliance (background check, ITAR, vaccine, etc.)
    • ITAR - Permanent resident of the United States (“U.S. person” as defined by ITAR)
    • Background - Pass a post-offer background verification.
Work Environment
Standard office environment with normal amounts of office related conditions. Occasionally may be required to work in environmental conditions that emulate typical user environments in order to facilitate design testing and validation.  Occasionally may be required to travel as required to other facilities, clients, or suppliers. 

SigmaDesign is an Equal Opportunity Employer

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