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Senior Engineer Jobs in Bothell, WA (NOW HIRING)

System One Holdings, LLC

Senior Engineer

Bellevue, WA · On-site

$56 - $95/hr

The Senior Engineer will work within a high-performing, multidisciplinary team of engineers and scientists developing advanced reactor systems. This role reports to the Reactor Enclosure System ...

Protingent

Senior Engineer

Bellevue, WA · On-site

$56 - $95/hr

Senior Engineer ASME Section III Design Certification Position Description: Protingent Staffing has an exciting REMOTE contract Senior Engineer ASME Section III Design Certification opportunity. Job ...

Lululemon athletica

Senior Engineer

Seattle, WA · On-site

$118.90K - $163.30K/yr

Senior-level knowledge of DevOps principles, CI/CD, and modern deployment automation * Strong understanding of ITIL processes (Incident, Problem, Change, Release Management) * Experience with ...

Lululemon

Senior Engineer

Seattle, WA · On-site

$118.90K - $163.30K/yr

Senior-level knowledge of DevOps principles, CI/CD, and modern deployment automation * Strong understanding of ITIL processes (Incident, Problem, Change, Release Management) * Experience with ...

lululemon

Senior Engineer

Seattle, WA · On-site

$118.90K - $163.30K/yr

... Senior Software Engineer is a senior technical leader responsible for delivering high-quality, scalable software solutions across a distributed microservices platform. This role is hands-on ...

Geico

Senior Engineer

Seattle, WA

$105K - $215K/yr

Position Description Our Senior Java Engineer is a key member of the engineering staff working across the organization to provide a friction-less experience to our customers and maintain the highest ...

Geico

Senior Engineer

Seattle, WA

$105K - $230K/yr

... a Senior Full-Stack Engineer, you will be a key member of the engineering team, collaborating across the organization to design and deliver scalable, high-performance solutions to complex problems.

Puget Sound Energy

Senior Engineer

Poulsbo, WA

$108.20K - $180.20K/yr

PSE's Engineering Operations team is looking for qualified candidates to fill an open Senior Engineer position! Specific details regarding the work arrangements for this position will be discussed in ...

Puget Sound Energy

Senior Engineer

Bremerton, WA

$108.20K - $180.20K/yr

PSE's Engineering Operations team is looking for qualified candidates to fill an open Senior Engineer position! Specific details regarding the work arrangements for this position will be discussed in ...

Puget Sound Energy

Senior Engineer

Redmond, WA

$108.20K - $180.20K/yr

PSE's Electric Operations team is looking for qualified candidates to fill an open Senior Engineer position! Specific details regarding the work arrangements for this position will be discussed in ...

Puget Sound Energy

Senior Engineer

Redmond, WA

$108.20K - $180.20K/yr

PSE's Electric Operations team is looking for qualified candidates to fill an open Senior Engineer position! Specific details regarding the work arrangements for this position will be discussed in ...

Puget Sound Energy

Senior Engineer

Bremerton, WA · On-site

$108.20K - $180.20K/yr

PSE's Engineering Operations team is looking for qualified candidates to fill an open Senior Engineer position! Specific details regarding the work arrangements for this position will be discussed in ...

Puget Sound Energy

Senior Engineer

Redmond, WA · On-site

$108.20K - $180.20K/yr

PSE's Electric Operations team is looking for qualified candidates to fill an open Senior Engineer position! Specific details regarding the work arrangements for this position will be discussed in ...

Puget Sound Energy

Senior Engineer

Bremerton, WA · On-site

$108.20K - $180.20K/yr

PSE's Engineering Operations team is looking for qualified candidates to fill an open Senior Engineer position! Specific details regarding the work arrangements for this position will be discussed in ...

F5, Inc.

Sr Engineer

Seattle, WA · On-site

$161.60K - $242.40K/yr

F5, Inc. seeks Sr Engineer in Seattle, WA: Job Duties: Continue contributing to F5 Distributed Cloud (F5XC) and its upcoming new projects. Build and maintain high-availability, reliability & high ...

Verdantas

Sr. Engineer - Drainage

Kirkland, WA · On-site

$130K - $190K/yr

Ready to shape the future of resilient communities? Sr. Engineer - Drainage (PE Required) Full-time exempt Professional Kirkland, WA, US PACE Engineers, A Verdantas Company , is a Pacific Northwest ...

Verdantas

Sr. Engineer - Drainage

Kirkland, WA · Hybrid

$130K - $190K/yr

Ready to shape the future of resilient communities? Sr. Engineer - Drainage (PE Required) Full-time exempt Professional Kirkland, WA, US PACE Engineers, A Verdantas Company , is a Pacific Northwest ...

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All JobsSenior Engineer JobsSenior Engineer Jobs in Bothell, WA

Senior Engineer information

See Bothell, WA salary details

$67.6K

$143.9K

$208.6K

How much do senior engineer jobs pay per year?

As of May 30, 2026, the average yearly pay for senior engineer in Bothell, WA is $143,863.00, according to ZipRecruiter salary data. Most workers in this role earn between $118,800.00 and $163,100.00 per year, depending on experience, location, and employer.

What Is a Senior Engineer?

Senior engineers develop and design software programs and applications, but are designated senior because they have more extensive knowledge and years of experience than other engineers on their team. As a senior engineer, you work closely with company managers to ensure the software is created to the required specifications and must troubleshoot issues with applications when they arise. Most senior engineers have mastered a specific set of programming languages, databases, and operating systems.

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

To thrive as a Senior Engineer, you need advanced technical expertise in your engineering discipline, a relevant degree, and several years of industry experience. Familiarity with project management software, CAD tools, and compliance with engineering standards or certifications like PE (Professional Engineer) is typically required. Critical thinking, leadership, and effective communication are essential soft skills for mentoring teams and managing complex projects. These skills and qualities ensure successful project delivery, innovation, and strong team performance within engineering environments.

How does a Senior Engineer typically mentor junior team members, and what impact does this have on the team's success?

Senior Engineers often play a key role in mentoring junior developers by providing guidance on technical challenges, reviewing code, and sharing best practices. This mentorship helps foster a collaborative environment where less-experienced team members can develop their skills more rapidly. As a result, the entire team benefits from improved code quality, faster problem-solving, and a culture of continuous learning. Senior Engineers also help set standards and encourage professional growth, which contributes to the overall success and cohesion of the engineering team.

What is the difference between Senior Engineer vs Mechanical Engineer?

AspectSenior EngineerMechanical Engineer
Required CredentialsBachelor's degree in engineering; often a master's; professional engineering license (PE) preferredBachelor's degree in mechanical engineering; PE license optional but advantageous
Work EnvironmentDesign, development, project management; leadership rolesDesign, analysis, testing, manufacturing
Industry UsageUsed across engineering sectors for experienced professionalsEntry to mid-level engineering roles in manufacturing, automotive, aerospace

Senior Engineers typically have more experience, leadership responsibilities, and advanced credentials compared to Mechanical Engineers. While Mechanical Engineers focus on design and analysis, Senior Engineers often oversee projects and mentor teams, making them suitable for higher-level roles within engineering teams.

More about Senior Engineer jobs
What are the most commonly searched types of Engineer jobs in Bothell, WA? The most popular types of Engineer jobs in Bothell, WA are:
What job categories do people searching Senior Engineer jobs in Bothell, WA look for? The top searched job categories for Senior Engineer jobs in Bothell, WA are:
What cities near Bothell, WA are hiring for Senior Engineer jobs? Cities near Bothell, WA with the most Senior Engineer job openings:
Senior Engineer jobs near you
Infographic showing various Senior Engineer job openings in Bothell, WA as of May 2026, with employment types broken down into 1% As Needed, 93% Full Time, 2% Part Time, and 4% Contract. Highlights an 89% Physical, 2% Hybrid, and 9% Remote job distribution, with an average salary of $143,863 per year, or $69.2 per hour.
Senior Engineer

Senior Engineer

System One Holdings, LLC

Bellevue, WA • On-site

$56 - $95/hr

Full-time

Posted 24 days ago

Job description

System One is seeking an experienced Senior Mechanical Engineer to support the design and development of reactor structures and components for a next-generation Generation IV advanced nuclear reactor program. This role is focused on high-integrity nuclear equipment design and requires deep expertise in ASME Section III nuclear design and certification.
The Senior Engineer will work within a high-performing, multidisciplinary team of engineers and scientists developing advanced reactor systems. This role reports to the Reactor Enclosure System Component Manager and plays a critical role in design certification, licensing support, and supplier oversight.
Position Summary
The Senior Mechanical Engineer will lead and execute design solutions for reactor structures and pressure-retaining components, from requirements definition through final design. The successful candidate will be responsible for preparing, reviewing, and certifying Design Specifications (DS) and Design Reports (DR) in accordance with ASME Boiler & Pressure Vessel Code Section III, while supporting regulatory, compliance, and customer deliverables.
Key Responsibilities
  • Certify Design Specifications (DS) and Design Reports (DR) for nuclear supports and/or nuclear pressure-retaining components
  • Serve as Certifying Engineer, applying professional engineering judgment and signing certifications as required
  • Maintain current knowledge of ASME Section III code updates, industry standards, and best practices
  • Design reactor structures and components from requirements through final design
  • Coordinate inputs and requirements from engineering and project teams to develop robust design solutions
  • Perform scoping analyses and design calculations for alternative design options
  • Interface with engineering analysis teams to support stress and mechanical evaluations
  • Provide technical management and oversight of supplier activities
  • Present design results at technical and formal design reviews
  • Mentor junior engineers and provide technical direction to subcontractors
  • Support continuous improvement and application of nuclear industry best practices

Required Qualifications & Skills
  • B.S. in Mechanical Engineering or equivalent (preferred)
  • Minimum 8 years of equipment/component design experience
    • Relevant M.S. degree may substitute for 2 years of experience
  • Active Professional Engineer (P.E.) license (required)
  • Demonstrated working experience with ASME Boiler & Pressure Vessel Code Section III
  • Proven experience certifying Design Specifications and Design Reports for nuclear pressure-retaining components
  • Strong understanding of ASME Section III, ASME NQA-1, and applicable NRC regulations
  • Experience authoring formal design specifications
  • Experience in finite element stress analysis, mechanical analysis methods, and commercial tools (ANSYS strongly preferred)
  • Excellent technical writing and verbal communication skills
  • Strong analytical and problem-solving skills; creative and critical thinker
  • High degree of trust and integrity with the ability to communicate openly, demonstrate respect, and foster teamwork

Physical & Work Requirements
  • Ability to sit and/or stand for extended periods
  • Bending, stooping, grasping, gripping, and fine motor control required
  • Ability to safely lift up to 25 pounds
  • Repetitive work and visual/audio focused tasks
  • Standard office and engineering work environment (>8 hours/day)
  • Travel: 0-5%

Additional Information
  • Role supports advanced nuclear reactor development programs
  • Employment may be subject to U.S. export control regulations
  • Candidates may be required to verify work authorization status in accordance with applicable laws

Ref: #161-Managed Staffing Charlotte

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