Demo

Senior Weld Engineer

Protingent
Bellevue, WA Contractor
POSTED ON 6/17/2026
AVAILABLE BEFORE 7/15/2026
Job Description

Position Title: Senior Weld Engineer

Position Description: Protingent Staffing has an exciting contract Senior Weld Engineer opportunity.

Job Responsibilities:

  • Develop and qualify welding techniques for nuclear reactor core internals for the fast reactor.
  • Weld process development and qualification for ferritic-martensitic steels and austenitic stainless steels using multiple technologies (resistance pressure welding, TIG, laser, etc.).
  • Generate appropriate specifications and procedures for the weld process, 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 the operation of weld equipment to generate test coupons to support process qualification and test programs to develop performance models.
  • Develop appropriate destructive and nondestructive inspection criteria for weld certification.
  • Use fundamental materials engineering principles to develop basic models of material performance and validate using laboratory testing.
  • Develop test requirements, plans, specifications and procedures for testing.
  • Oversee test programs for qualification of welds such as 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 to document new knowledge related to reactor design and qualification.
  • Interface with various project teams to ensure materials development and testing efforts meet programmatic objectives for a wide range of company initiatives including the reactor.
  • Assist with supplier audits per ASME NQA-1-2015.


Job Qualifications:

  • 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, or a related technical discipline is desired.
  • A solid understanding of metallurgy including fabrication and thermomechanical processing 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.
  • Experience working in stringent quality systems (e.g., NQA-1, ISO-9001, AS9100) preferred.
  • A general understanding of the design of nuclear reactor and subsequent impacts on materials would be considered a plus
  • Ability to work with minimum direction to solve challenging problems.
  • Actual position starting level and title will be determined based on assessment of qualifications
  • Travel Required: 5%.


Job Details:

  • Job Type: Contract
  • Pay Rate Range: $56-$95/hr (Pay rates are approved based on candidate location, education and experience)
  • Location: Bellevue, WA
  • Export control regulations require candidates to be a U.S. Citizen, U.S. Legal Permanent Resident, or of a protected person status


Benefits Package: Protingent offers competitive salaries, insurance plan options (HDHP plan or POS plan), education/certification reimbursement, pre-tax commuter benefits, Paid Time Off (PTO), and an administered 401k plan.

#TerraPro

About Protingent: Protingent is an Award-Winning provider of top-tier Engineering and IT talent, trusted by companies at the forefront of innovation — from Software and Aerospace to AI, Clean Tech, Medical Devices, and Connected Technologies. We’re passionate about making a positive impact by connecting exceptional talent with meaningful opportunities and helping our clients build the future.

Salary : $56 - $95

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