Senior Welding Engineer
Bellevue, WA
Experience: 6
Education: BA
Category: Energy
Contractor Work Model: Onsite
Brand: System One
Compensation Range: 56.00 - 95.00 Per Hour
Job ID: 375449
Date Posted: 10/28/2026
Shortcut: http://jobs.systemone.com/Jbr8WV
Job Title: Senior Welding Engineer
Location: Bellevue, WA
Type: Contract
Compensation: $56.00-$95.00
Contractor Work Model: Onsite – onsite (US based local candidates or looking to relocate)
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. The Senior Welding Engineer will be provide welding-engineering input to part and joint designs, lead weld-process development and production transfer, author welding and fabrication specifications, review drawings and engineering documentation, and work directly with suppliers to establish qualified, inspectable, and scalable manufacturing processes.
Tasks
- Provide welding-engineering input to component and detail designs, drawings, specifications, and procurement packages for reactor core components, including development of weld-joint details to address weldability, service conditions, and production scalability
- Participate in design reviews to assess component manufacturability and supplier readiness, ensuring welding requirements and acceptance criteria are correct and complete
- Develop and qualify scalable welding processes for ferritic-martensitic steels, austenitic stainless steels, and other applicable alloys using welding technologies including but not limited to resistance pressure welding, gas tungsten arc welding, laser welding, or others
- Author welding specifications, procedures, qualification plans, and acceptance criteria
- Oversee fabrication of coupons and prototype components, and translate development results into production level controls
- Establish destructive and nondestructive examination methods and develop test requirements, plans, and procedures to support weld qualification and production readiness
- Support weld-performance testing under applicable service conditions, analyze data using materials-engineering principles to validate performance models, and document conclusions
- Lead supplier technical development and provide oversight of welding, fabrication, inspection, testing, and process-qualification activities to advance manufacturing readiness for Natrium core components
- Support supplier selection, technical evaluations, statements of work, requests for proposal, site visits, readiness assessments, corrective actions, and audits in accordance with ASME NQA-1-2015 and applicable quality requirements
- Collaborate with design, materials, manufacturing, testing, quality, procurement, and project teams to ensure welding-development and qualification activities meet technical, quality, cost, schedule, and program objectives
- Communicate technical risks, development status, test results, and recommended actions to stakeholders while promoting a strong culture of safety, quality, teamwork, and continuous improvement
Key Qualifications and Skills
- Minimum of 6 years of related experience with a Bachelor’s degree; or 3 years and a Master’s degree. A degree in Materials Science/Engineering, Mechanical Engineering, Welding Engineering, or a related technical discipline is desired.
- A solid understanding of metallurgy including fabrication, thermomechanical processing, and welding of ferrous (e.g., ferritic-martensitic steels) and nonferrous (e.g., nickel-base) alloys is required
- Demonstrated skills in developing requirements specifications, defining supplier technical work scope to include development of SOWs, RFPs and providing technical direction and oversight of supplier projects is required
- Demonstrated experience developing, qualifying, and implementing welding processes in a production or high-consequence manufacturing environment is required
- Demonstrated ability to provide technical oversight to suppliers and resolve welding, fabrication, inspection, and quality issues is required
- Experience providing welding input to part and joint designs, including drawing review, joint geometry, manufacturability, and inspectability is required
- Experience working in stringent quality systems (e.g., NQA-1, ISO-9001, AS9100) is preferred
- A general understanding of the design of nuclear reactor and subsequent impacts on materials is desired
- Ability to work with minimum direction to solve challenging problems is required
- Actual position starting level and title will be determined based on assessment of qualifications
- The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect, and a desire to foster teamwork
#LI-
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