Demo

Senior Welding Engineer

System One
Bellevue, WA Contractor
POSTED ON 10/8/2026
AVAILABLE BEFORE 1/5/2027

Job Title: Senior Welding Engineer
Location: Bellevue, WA
Type: Contract
Compensation: $56.00
Contractor Work Model: Onsite – onsite
Hours: 40.0

Overview

System One is seeking a Senior Welding Engineer for a yearlong contract role to work as part of a high-functioning team of engineers focused on materials processing, supply chain development and supplier qualification for next generation material and components for sodium-cooled fast reactors. Must be local to the Bellevue, WA area. You will be responsible for developing the welding processes as well as developing the test programs necessary for generating necessary design information.

Responsibilities

  • Develop and qualify welding techniques for nuclear reactor core internals for a sodium-cooled fast reactor
  • Conduct welding process development and qualification for ferritic-martensitic steels and austenitic stainless steels using multiple technologies (e.g., resistance pressure welding, TIG, laser)
  • Generate welding process specifications and procedures, and review engineering documentation to ensure appropriate callouts
  • Lead technical development of suppliers to increase technology readiness levels of key materials and components for the core of the reactor
  • Oversee weld equipment operations to generate test coupons supporting process qualification and test programs to develop performance models
  • Develop destructive and nondestructive inspection criteria for weld certification
  • Use fundamental materials engineering principles to develop basic models of material performance and validate them using laboratory testing
  • Develop test requirements, plans, specifications, and procedures for testing
  • Oversee test programs for qualification of welds, including mechanical properties, burst testing, thermal creep, creep-fatigue, neutron irradiation, thermal aging, and sodium exposure
  • Perform scientific analysis on test data and generate technical reports documenting new knowledge related to reactor design and qualification
  • Interface with project teams to ensure materials development and testing efforts meet programmatic objectives across client initiatives
  • Assist with supplier audits per ASME NQA-1-2015

Requirements

  • Minimum of 6 years of related experience with a Bachelor’s degree; or 3 years of experience with a Master’s degree
  • Degree in Materials Science/Engineering, Mechanical Engineering, or a related technical discipline (BA required)
  • Solid understanding of metallurgy, including fabrication and thermomechanical processing of ferrous (e.g., ferritic-martensitic steels) and nonferrous (e.g., nickel-base) alloys
  • Demonstrated skills in developing requirements specifications and defining supplier technical work scope, including development of SOWs and RFPs, and providing technical direction and oversight of supplier projects
  • Experience working in stringent quality systems (e.g., NQA-1, ISO-9001, AS9100) preferred
  • General understanding of nuclear reactor design and subsequent impacts on materials considered a plus
  • Ability to work with minimum direction to solve challenging problems
  • High degree of trust and integrity, ability to communicate openly, and desire to foster teamwork
  • Local to the Bellevue, WA area

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.

#M-
#LI-
Ref: #161-Managed Staffing Charlotte

Salary : $56

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Senior Welding Engineer?

Sign up to receive alerts about other jobs on the Senior Welding Engineer career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$105,809 - $128,724
Income Estimation: 
$136,611 - $163,397
Income Estimation: 
$135,163 - $163,519
Income Estimation: 
$131,953 - $159,624
Income Estimation: 
$150,859 - $181,127
Income Estimation: 
$88,239 - $107,750
Income Estimation: 
$92,981 - $138,294
Income Estimation: 
$108,127 - $132,532
Income Estimation: 
$110,528 - $145,291
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at System One

  • System One North Kingstown, RI
  • Job Title: Marine Systems and Piping Engineer Location: North Kingstown, Rhode Island Type: Direct Hire Work Model: Onsite – onsite Hours: 40.0 Responsibil... more
  • 15 Days Ago

  • System One Oxford, MS
  • Job Title: Archaeological Field Technician Type: Contract Compensation: $20 - $27 hourly Archeology Field Technician - Job Description: The archaeological ... more
  • 15 Days Ago

  • System One Hackettstown, NJ
  • Job Title : Commercial Assistant Location : Mount Olive, NJ (Onsite) Schedule : Monday–Friday, 8:30 AM–5:00 PM Type : Contract-to-Hire Pay: $21–$23/hour Ov... more
  • 15 Days Ago

  • System One Charlotte, NC
  • System One is seeking a skilled Journeyman Electrician for an industrial new construction project located in the Charlotte, NC area. This role requires a p... more
  • 15 Days Ago


Not the job you're looking for? Here are some other Senior Welding Engineer jobs in the Bellevue, WA area that may be a better fit.

  • DSJ Global Seattle, WA
  • Job Title: Welding Engineer III Location: Seattle, WA Salary: $110,000 - 128,000 full relo Summary: A reputable shipbuilding company is seeking an experien... more
  • 16 Days Ago

  • Shield AI Seattle, WA
  • Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products incl... more
  • 1 Month Ago

AI Assistant is available now!

Feel free to start your new journey!