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Senior Software Engineer

Job in Bellevue, King County, Washington, 98009, USA
Listing for: Protingent
Full Time position
Listed on 2026-07-08
Job specializations:
  • Software Development
    Software Engineer, Senior Developer
Salary/Wage Range or Industry Benchmark: 56 - 95 USD Hourly USD 56.00 95.00 HOUR
Job Description & How to Apply Below

Senior Software Engineer

Protingent Staffing has an exciting contract Senior Software Engineer opportunity.

Responsibilities
  • Design, implement, document, and test software based on formally defined requirements and bug reports from the in‑house user base.
  • Design and implement refactorizations and maintenance to maximize near‑ and long‑term productivity of users and developers.
  • Identify and prioritize tasks without them being explicitly assigned to you.
  • Support verification and validation efforts to prove that the code meets specifications and is correct.
  • Systematically identify performance or productivity bottlenecks; design and implement solutions to eliminate them.
  • Perform administrative data management operations on the backend based on user and management needs.
  • Understand and translate new feature requests into formal software requirements.
  • Train and support reactor designers to use the software system.
  • Provide mentoring to other developers.
  • Support software build and testing systems (e.g., Jenkins and related dashboards).
  • Support server configuration and maintenance needs.
  • Facilitate design reviews for ongoing developments to keep the review/approval process as productive as possible.
  • Review proposed code changes and provide detailed feedback before allowing it to go live.
  • Ensure compliance with quality standards and regulatory requirements for software.
Qualifications
  • Bachelor’s degree in an applicable field of Engineering.
  • 6+ years of relevant experience in web application development.
  • Advanced programming skills in Python and JavaScript.
  • 3+ years in‑depth experience with Django and DRF.
  • 3+ years in‑depth experience with at least one JavaScript framework such as Vue
    3.
  • 3+ years regularly writing software tests.
  • Advanced capabilities with software development tools, including Git, IDEs, profilers, debuggers, test frameworks, and packaging tools.
  • Ability to focus and comfort with delivering a challenging project under evolving conditions and rapid‑paced development.
  • Professionalism to work within the robust regulatory environment of nuclear reactor design and construction, with a strong commitment to software best practices.
  • Strong communication skills desired.
  • Actual position starting level and title will be determined based on assessment of qualifications.
Employment Details
  • Employment type:

    Contract
  • Pay Rate Range: $56‑$95 per hour
  • Location:

    Bellevue, WA or 100% Remote
  • Travel Required:

    0‑5%
  • Export control regulations require candidates to be a U.S. Citizen, U.S. Legal Permanent Resident, or of a protected person status.
Benefits

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.

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Position Requirements
10+ Years work experience
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