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Mechanical Engineer Contractor Jobs in Seattle, WA

Stantec

Mechanical Engineer

Lynnwood, WA · On-site

Communicates with manufacturers and contractors to address challenges and develop practical designs ... Deep knowledge for buildings mechanical engineering, including but not limited to HVAC, piping ...

Stantec

Mechanical Engineer

Seattle, WA · On-site

Communicates with manufacturers and contractors to address challenges and develop practical designs ... Deep knowledge for buildings mechanical engineering, including but not limited to HVAC, piping ...

Stantec

Mechanical Engineer

Seattle, WA · On-site

$126K - $189K/yr

Communicates with manufacturers and contractors to address challenges and develop practical designs ... Deep knowledge for buildings mechanical engineering, including but not limited to HVAC, piping ...

ApplyMint

Test Engineer Contractor

Kent, WA · On-site

$75 - $95/hr

S. degree or higher in Mechanical or Aerospace Engineering, or other relevant field. * 2 + years of experience in component testing and data analysis . * Demonstrated technical expertise in design ...

Stantec

Mechanical Engineer - Federal

Seattle, WA · On-site

$91K - $132K/yr

... contractor RFI's, issuing field directives, performs construction observation and punch lists ... Working knowledge for buildings mechanical engineering, including but not limited to HVAC, piping ...

Stantec

Mechanical Engineer - Federal

Seattle, WA · On-site

... contractor RFI's, issuing field directives, performs construction observation and punch lists ... Working knowledge for buildings mechanical engineering, including but not limited to HVAC, piping ...

Stantec

Mechanical Engineer - Federal

Lynnwood, WA · On-site

... contractor RFI's, issuing field directives, performs construction observation and punch lists ... Working knowledge for buildings mechanical engineering, including but not limited to HVAC, piping ...

Stantec

Senior Mechanical Engineer - Federal

Seattle, WA · On-site

$151K - $227K/yr

Your Opportunity Senior Mechanical Engineer - Federal draws on strong buildings engineering ... Provides construction administration support such as reviewing contractor RFI's, issuing field ...

System One

Senior Mechanical Engineer

Bellevue, WA · Remote

$107K - $141K/yr

Senior Mechanical Engineer Location: Bellevue, WA Type ... Contract Contractor Work Model: Remote - offsite Hours: 40.0 Responsibilities * Design reactor ...

System One

Senior Mechanical Engineer

Bellevue, WA · Remote

$107K - $141K/yr

Senior Mechanical Engineer Location: Bellevue, WA Type ... Contract Contractor Work Model: Remote - offsite Hours: 40.0 Responsibilities * Design reactor ...

System One

Senior Mechanical Engineer

Bellevue, WA · Remote

$107K - $141K/yr

Senior Mechanical Engineer Location: Bellevue, WA Type ... Contract Contractor Work Model: Remote - offsite Hours: 40.0 Responsibilities * Design reactor ...

Meade

Senior Mechanical Engineer

Seattle, WA

$130K - $167K/yr

Work amongst a cross-discipline design team, owners, and contractors to develop drawings and ... Valid Mechanical P.E. license and Bachelor's degree in Mechanical Engineering (will consider ...

Crane Company

Mechanical Engineer IV

Lynnwood, WA · On-site

As a US Department of Defense contractor, we are bound by International Traffic in Arms Regulations ... Knowledge: * Knowledge of Mechanical Engineering Principles, including mechanics of materials ...

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Showing results 1-20

All JobsMechanical Engineer Contractor JobsMechanical Engineer Contractor Jobs in Seattle, WA

Mechanical Engineer Contractor information

See Seattle, WA salary details

$51.8K

$117.1K

$189.5K

How much do mechanical engineer contractor jobs pay per year?

As of Aug 23, 2026, the average yearly pay for mechanical engineer contractor in Seattle, WA is $117,078.00, according to ZipRecruiter salary data. Most workers in this role earn between $92,700.00 and $144,000.00 per year, depending on experience, location, and employer.

What is a mechanical engineer contractor?

Mechanical Engineer Contractors are professionals who provide specialized engineering services on a contract basis rather than as permanent employees. They design, develop, and oversee the installation and maintenance of mechanical systems in various industries, such as manufacturing, construction, or energy. Contractors are typically hired for specific projects or to address temporary skill gaps within an organization. Their work may include tasks like equipment design, HVAC system planning, or process optimization. Mechanical Engineer Contractors must possess strong technical skills, adaptability, and often need to manage multiple projects simultaneously.

What are the key skills and qualifications needed to thrive as a mechanical engineer contractor?

To thrive as a Mechanical Engineer Contractor, you need a solid background in mechanical engineering principles, project management, and often a relevant engineering degree with professional licensure (such as PE). Familiarity with CAD software, simulation tools, and industry-specific codes or standards is typically required. Strong problem-solving abilities, effective communication, and adaptability set successful contractors apart. These skills ensure projects are completed accurately, efficiently, and in compliance with safety and regulatory requirements.

What are some common challenges mechanical engineer contractors face when working on multiple projects concurrently?

Mechanical Engineer Contractors often manage several projects at once, which can present challenges such as balancing competing deadlines, adapting to different client expectations, and quickly familiarizing themselves with diverse industry standards. Strong organizational skills and proactive communication are essential for keeping projects on track and ensuring quality deliverables. Additionally, contractors must be adept at quickly building rapport with new teams and stakeholders to facilitate smooth collaboration and project success.

What is the difference between Mechanical Engineer Contractor vs Mechanical Engineer?

AspectMechanical Engineer ContractorMechanical Engineer
CredentialsTypically requires a bachelor's degree in mechanical engineering and relevant certifications; contractors often hold professional engineer (PE) licenses.Requires a bachelor's degree in mechanical engineering; licensure may be preferred or required for certain roles.
Work EnvironmentUsually works on temporary projects, often on-site at client locations, with flexible or contract-based employment.Works in permanent positions within companies, engineering firms, or manufacturing environments.
Employer & Industry UsageHired by companies or clients for specific projects; common in consulting, construction, and manufacturing sectors.Employed directly by organizations or firms as full-time staff.

In summary, Mechanical Engineer Contractors are typically hired for temporary, project-based work and often hold specific certifications, while Mechanical Engineers are usually employed full-time within organizations. Both roles require similar educational backgrounds but differ mainly in employment type and work setting.

Can mechanical engineers work as contractors?

Yes, mechanical engineers can work as contractors, often providing specialized engineering services on a project basis. Contract roles may require relevant certifications, technical skills, and the ability to work independently or with a team in various environments. Many contractors work on short-term projects, offering flexibility and expertise to employers without full-time employment commitments.

What are popular job titles related to Mechanical Engineer Contractor jobs in Seattle, WA?

For Mechanical Engineer Contractor jobs in Seattle, WA, the most frequently searched job titles are:

What job categories do people searching Mechanical Engineer Contractor jobs in Seattle, WA look for?

The top searched job categories for Mechanical Engineer Contractor jobs in Seattle, WA are:

What cities near Seattle, WA are hiring for Mechanical Engineer Contractor jobs?

Cities near Seattle, WA with the most Mechanical Engineer Contractor job openings:

Mechanical Engineer Contractor jobs near you
Infographic showing various Mechanical Engineer Contractor job openings in Seattle, WA as of August 2026, with employment types broken down into 100% Full Time. Highlights an 94% In-person, and 6% Hybrid job distribution, with an average salary of $117,078 per year, or $56.3 per hour.

Lead Mechanical Engineer

NW Recruiting Partners

Bellevue, WA

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted yesterday

Job description

Lead Mechanical Engineer
Bellevue, WA

Our client, a well-established and growing mechanical and engineering contractor, is seeking a Lead Mechanical Engineer to oversee HVAC and plumbing design across a wide range of construction projects. This role serves as the primary point of contact for clients, delivering high-quality engineering services from conceptual design through stamped contract documents. The ideal candidate will bring strong technical expertise, project leadership skills, and the ability to support both business development and project execution.

This is an excellent opportunity for a licensed engineer to take ownership of complex, high-profile projects and contribute to the continued success of a respected organization.

Lead Mechanical Engineer Responsibilities:

  • Lead HVAC and plumbing design for projects ranging from $20K to $30M+.
  • Serve as the primary client-facing engineer, guiding projects from basis of design through final contract documents.
  • Support project pursuits, including proposals, statements of qualifications, and interviews.
  • Provide technical support across multiple delivery methods, including design-build, design-bid-build, MCCM, design assist, and progressive design-build.
  • Develop load and sizing calculations for mechanical systems.
  • Contribute to the development and improvement of internal templates and standards.

Lead Mechanical Engineer Qualifications:

  • 6+ years of mechanical design experience.
  • Licensed Professional Engineer (PE) in Washington State.
  • Strong technical expertise in HVAC and plumbing system design.
  • Proven ability to manage client relationships and project delivery.

Benefits and Appreciation:

  • Medical, Dental, and Vision Insurance
  • Paid Time Off and Holidays
  • 401K
  • Professional development opportunities

Compensation: $120K – $150K (DOE) plus discretionary bonus

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