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Senior Mechanical Engineering Jobs in Bothell, WA

Kosmos

Sr Mechanical Engineer

Seattle, WA · On-site

$90K - $130K/yr

Growing Manufacturing firm in Butte, MT has a need for a Sr Mechanical Engineer. This is a direct ... Bachelors or Master of Science Mechanical Engineering, preferred, (ABET Accredited) * Four + years ...

Protingent

Senior Mechanical Engineer

Bellevue, WA · On-site

$56 - $95/hr

Senior Mechanical Engineer Position Description: Protingent Staffing has an exciting contract ... Coordinate inputs and requirements from Engineering and Project teams to produce equipment and ...

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Senior Mechanical Engineering information

See Bothell, WA salary details

$83.3K

$137K

$191.2K

How much do senior mechanical engineering jobs pay per year?

As of Sep 5, 2026, the average yearly pay for senior mechanical engineering in Bothell, WA is $137,012.00, according to ZipRecruiter salary data. Most workers in this role earn between $116,800.00 and $154,300.00 per year, depending on experience, location, and employer.

What does a senior mechanical engineer do?

A Senior Mechanical Engineer is responsible for designing, developing, and overseeing the production of mechanical systems and components. They lead engineering projects, provide technical guidance to junior engineers, and ensure that designs meet safety, efficiency, and quality standards. These professionals often collaborate with other engineering disciplines, manage project timelines, and troubleshoot complex technical issues. Their work may span industries such as automotive, aerospace, manufacturing, or energy, depending on the employer.

How does a senior mechanical engineer typically collaborate with cross-functional teams during a project?

As a Senior Mechanical Engineer, you will regularly work alongside teams from electrical engineering, manufacturing, quality assurance, and project management. This collaboration often involves participating in design reviews, coordinating timelines, and resolving integration challenges to ensure all components fit and function together seamlessly. Effective communication and teamwork are essential, as you'll be expected to provide technical guidance and ensure that design decisions align with broader project goals. This cross-functional interaction not only ensures the success of the project but also provides opportunities to broaden your expertise and leadership skills.

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

To thrive as a Senior Mechanical Engineer, you need advanced knowledge of mechanical design, engineering principles, and problem-solving, typically backed by a bachelor's or master's degree in mechanical engineering and professional licensure (PE). Expertise in CAD software, FEA tools, and industry-standard project management systems is essential. Strong leadership, effective communication, and project management skills help you guide teams and collaborate across disciplines. These skills ensure innovative, efficient, and reliable engineering solutions while driving project success and team performance.

What is the difference between Senior Mechanical Engineering vs Mechanical Engineering?

AspectSenior Mechanical EngineeringMechanical Engineering
Required CredentialsBachelor's degree, 5+ years experience, professional engineering license often preferredBachelor's degree in mechanical engineering, entry-level to mid-level experience
Work EnvironmentDesign, development, project management, leadership roles in manufacturing, automotive, aerospaceDesign, analysis, testing, manufacturing in various industries
Employer & Industry UsageEngineering firms, manufacturing companies, R&D departmentsWide range of industries including automotive, aerospace, energy, consumer products

Senior Mechanical Engineers typically have more experience, leadership responsibilities, and advanced certifications compared to Mechanical Engineers. They focus on project oversight, complex design, and mentoring junior staff, whereas Mechanical Engineers often handle core design and analysis tasks. Both roles are essential in engineering teams, but senior roles require more expertise and industry experience.

What are the most commonly searched types of Mechanical Engineering jobs in Bothell, WA?

The most popular types of Mechanical Engineering jobs in Bothell, WA are:

What are popular job titles related to Senior Mechanical Engineering jobs in Bothell, WA?

For Senior Mechanical Engineering jobs in Bothell, WA, the most frequently searched job titles are:

What job categories do people searching Senior Mechanical Engineering jobs in Bothell, WA look for?

The top searched job categories for Senior Mechanical Engineering jobs in Bothell, WA are:

What cities near Bothell, WA are hiring for Senior Mechanical Engineering jobs?

Cities near Bothell, WA with the most Senior Mechanical Engineering job openings:

Senior Mechanical Engineering jobs near you
Infographic showing various Senior Mechanical Engineering job openings in Bothell, WA as of August 2026, with employment types broken down into 84% Full Time, 11% Part Time, 4% Contract, and 1% Nights. Highlights an 84% Physical, 6% Hybrid, and 10% Remote job distribution, with an average salary of $139,323 per year, or $67 per hour.

Senior Mechanical Engineer ASME Lead

System One

Bellevue, WA • Remote

$69 - $115/hr

Contractor

Medical, Dental, Vision, Life, Retirement

Re-posted 14 days ago

Job description

Senior Mechanical Engineer – ASME Lead (Contract)

Remote | Long-Term Contract $69-$115/hr

System One is seeking a Senior Mechanical Engineer – ASME Lead to support the design and development of advanced nuclear reactor systems. This role will focus on the design, analysis, and certification of safety-related reactor components and pressure-retaining systems in accordance with ASME Section III requirements.

Responsibilities

  • Lead design and analysis of ASME Section III pressure boundary and internal reactor components.
  • Prepare, review, and certify Design Specifications (DS) and Design Reports (DR).
  • Develop engineering calculations, load evaluations, qualification reports, and design documentation.
  • Ensure compliance with ASME Section III, NQA-1, and NRC requirements.
  • Support licensing activities, design reviews, audits, and code certification efforts.
  • Collaborate with multidisciplinary engineering teams, suppliers, and quality organizations.
  • Support material selection, fabrication requirements, inspections, and corrective actions.
  • Provide technical leadership and mentorship to engineering teams.

Qualifications

  • B.S. in Mechanical Engineering or related discipline.
  • Active Professional Engineer (PE) license required.
  • 10+ years of equipment or component design experience.
  • Extensive experience with ASME Boiler & Pressure Vessel Code Section III.
  • Demonstrated experience certifying Design Specifications and Design Reports for nuclear pressure-retaining components.
  • Strong knowledge of ASME Section III, NQA-1, and NRC regulations.
  • Experience with finite element analysis and ANSYS.
  • Excellent technical writing, communication, and problem-solving skills.

This is an excellent opportunity to contribute to next-generation nuclear technology while working with a highly collaborative engineering team focused on innovation, safety, and technical excellence.

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

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About System One

Sourced by ZipRecruiter

System One helps employers get work done more efficiently and economically without compromising quality. Over our 35+ year history, we've helped connect thousands of talented people with innovative companies. The excitement of a perfect fit motivates us every single day.

Industry

Business consulting services and recruiting and staffing services

Company size

5,001 - 10,000 Employees

Headquarters location

Pittsburgh, PA, US

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