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Senior Mechanical Engineer Jobs in Bothell, WA (NOW HIRING)

ROCKWOOL

Sr. Mechanical Engineer

Seattle, WA

$115K - $135K/yr

ROCKWOOL is seeking a Sr. Mechanical Engineer to join our Group Technology team! This position requires travel of 60%, both internationally and nationally, and the ability to relocate for extended ...

JH Kelly

Senior Mechanical Engineer

Seattle, WA

$115K - $145K/yr

At JH Kelly , we're looking for a driven, systems-thinking Senior Mechanical Design Engineer who thrives on leading HVAC design direction from concept to completion-delivering coordinated, error-free ...

Endurance Energy

Senior Mechanical Engineer

Seattle, WA · On-site

$170K - $230K/yr

What you'll be doing As a Senior Mechanical Engineer, you will own critical mechanical systems within our seafloor power plants. These systems must survive high pressure, corrosion, thermal cycling ...

legence

Senior Mechanical Engineer - P2S

San Diego, CA · Hybrid

$124K - $183K/yr

Are you a Senior Level Mechanical Engineer with 8+ years of experience looking to grow your career? P2S is an award-winning engineering firm that has been named a "Best Place to Work" for the past 15 ...

legence

Senior Mechanical Engineer - P2S

Seattle, WA · Hybrid

$124K - $183K/yr

Are you a Senior Level Mechanical Engineer with 8+ years of experience looking to grow your career? P2S is an award-winning engineering firm that has been named a "Best Place to Work" for the past 15 ...

LEAF Engineers

Senior Mechanical Engineer

Seattle, WA · On-site

$118K - $157K/yr

LEAF Engineers is a frontrunner for success in providing comprehensive mechanical, electrical and plumbing, technology, and fire protection engineering design services. Our engineers are focused on ...

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Senior Mechanical Engineer information

See Bothell, WA salary details

$84.7K

$139.3K

$194.4K

How much do senior mechanical engineer jobs pay per year?

As of Aug 21, 2026, the average yearly pay for senior mechanical engineer in Bothell, WA is $139,323.00, according to ZipRecruiter salary data. Most workers in this role earn between $118,800.00 and $156,900.00 per year, depending on experience, location, and employer.

What does a senior mechanical engineer do?

A senior mechanical engineer manages the research and manufacturing of mechanical devices and systems. Day to day responsibilities of a senior mechanical engineer include estimating manufacturing project costs and timelines, making recommendations on system efficiencies and safety, and performing general engineering duties such as the development and testing of machines. A senior mechanical engineer job is a leadership position and requires managerial experience and excellent communication skills.

What does a senior mechanical engineer do?

A Senior Mechanical Engineer is responsible for designing, developing, and overseeing the production of mechanical systems and devices. They lead engineering projects, solve complex technical problems, and may supervise junior engineers and other team members. Their work often involves using advanced software tools for modeling and analysis, ensuring compliance with industry standards, and communicating with clients and stakeholders. Senior Mechanical Engineers typically have several years of experience and play a key role in project planning and execution.

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 a strong background in mechanical design, engineering analysis, and project management, usually supported by a bachelor's or master's degree in mechanical engineering and several years of industry experience. Proficiency with CAD software (such as SolidWorks or AutoCAD), FEA tools, and familiarity with relevant industry standards and certifications (like PE licensure) are typically required. Excellent problem-solving, leadership, and communication skills help you lead teams and collaborate effectively with cross-functional departments. These skills and qualifications are crucial for delivering innovative, reliable engineering solutions and successfully managing complex projects.

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

As a Senior Mechanical Engineer, you’ll regularly work alongside professionals from disciplines such as electrical engineering, manufacturing, project management, and quality assurance. Effective collaboration involves participating in design reviews, aligning on technical requirements, and troubleshooting challenges that arise during development. You’ll often serve as a key technical liaison, ensuring that mechanical solutions integrate seamlessly with other systems and that project milestones are met on schedule. Strong communication and leadership skills are invaluable, as you’ll help guide both junior engineers and multidisciplinary teams toward shared goals.

What is the difference between Senior Mechanical Engineer vs Mechanical Designer?

AspectSenior Mechanical EngineerMechanical Designer
Required CredentialsBachelor's or Master's in Mechanical Engineering, Professional Engineer (PE) license often preferredAssociate's or Bachelor's in Mechanical Engineering or related field, certifications vary
Work EnvironmentDesign, analysis, project management, often in engineering firms or manufacturingDrafting, CAD modeling, product development, typically in design departments
Employer & Industry UsageEngineering firms, manufacturing, aerospace, automotiveProduct design companies, manufacturing, engineering consultancies

While both roles involve mechanical design, Senior Mechanical Engineers focus on project oversight, analysis, and technical leadership, whereas Mechanical Designers primarily handle CAD modeling and drafting tasks. The senior role requires more advanced credentials and experience, often with broader responsibilities in project management and engineering decisions.

How much do senior mechanical engineers get paid?

Senior mechanical engineers typically earn a median annual salary ranging from $85,000 to $130,000, depending on experience, location, and industry. They often have specialized skills in CAD software, project management, and engineering design, which can influence compensation levels.
More about Senior Mechanical Engineer jobs

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

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

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

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

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

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

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

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

Senior Mechanical Engineer jobs near you
Infographic showing various Senior Mechanical Engineer job openings in Bothell, WA as of August 2026, with employment types broken down into 83% Full Time, 14% Part Time, 2% Contract, and 1% Nights. Highlights an 96% Physical, 2% Hybrid, and 2% 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 1 hour 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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