Demo

Principal Software Developer

Protingent
Bellevue, WA Contractor
POSTED ON 1/28/2026 CLOSED ON 3/6/2026

What are the responsibilities and job description for the Principal Software Developer position at Protingent?

Job Description

Position Title: Principal Software Developer

Position Description: Protingent Staffing has an exciting REMOTE contract Principal Software Developer opportunity.

Job 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 codes meet specifications and are 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 (like our Jenkins instance and related dashboards),
  • Support server configuration and maintenance needs,
  • Facilitate design reviews for ongoing developments to keep 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.


Job Qualifications:

  • Minimum Qualifications:
  • 8 years of relevant experience on web application development,
  • Expert-level programming skills in Python and JavaScript,
  • 5 years in-depth experience and expertise with Django and DRF,
  • 5 years in-depth experience with least one JavaScript framework like Vue3,
  • 5 years regularly writing software tests,
  • Expert capabilities with software development tools, including git, IDEs, profilers, debuggers, test frameworks, packaging tools,
  • Please do not apply if you aren’t already comfortable interactively rebasing (or similar)
  • Ability to focus and comfort with delivering a challenging project under evolving conditions, during rapid-paced development,
  • Ability and professionalism to work within the robust regulatory environment of nuclear reactor design and construction,
  • A strong commitment to software best practices,
  • Good understanding of software quality assurance and the software development life cycle,
  • Ability to provide and receive professional feedback.
  • Travel Required: 0-5%.


Preferred Job Qualifications:

  • Degree in computer science, applied mathematics, or similar,
  • Expertise building and maintaining Linux application and database servers,
  • Expertise in configuring and maintaining Continuous Integration systems
  • Strong expertise in Vue3 and Quasar specifically,
  • Expertise with celery
  • Expertise with Cypress,
  • Experience with major industrial construction projects,
  • Experience working in NQA-1 environments,
  • Excellent written and verbal communication skills.


Job Details:

  • Job Type: Contract
  • Pay Rate Range: $52-$85/hr (*Pay rates are approved based on candidate location, education and experience*)
  • Location: 100% Remote Acceptable
  • 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 : $52 - $85

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 Principal Software Developer?

Sign up to receive alerts about other jobs on the Principal Software Developer career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$176,149 - $220,529
Income Estimation: 
$156,679 - $196,968
Income Estimation: 
$72,538 - $87,299
Income Estimation: 
$88,790 - $110,816
Income Estimation: 
$128,473 - $158,030
Income Estimation: 
$143,123 - $179,960
Income Estimation: 
$88,790 - $110,816
Income Estimation: 
$107,385 - $134,565
Income Estimation: 
$107,385 - $134,565
Income Estimation: 
$128,473 - $158,030
This job has expired.
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 Protingent

  • Protingent Bellevue, WA
  • Job Description Position Title: System Design Engineer, Fluid Systems Position Description: Protingent Staffing has an exciting REMOTE contract System Desi... more
  • 3 Months Ago

  • Protingent Bellevue, WA
  • Job Description Job Title : Fire Protection Specialist Position Description : Protingent Staffing has an exciting contract Fire Protection Specialist oppor... more
  • 3 Months Ago

  • Protingent Bellevue, WA
  • Job Description Position Title: Senior Materials Testing Engineer Position Description: Protingent Staffing has an exciting contract Senior Materials Testi... more
  • 3 Months Ago

  • Protingent Bellevue, WA
  • Job Description Position Title: Senior Materials Engineer Position Description: Protingent Staffing has an exciting contract Senior Materials Engineer oppo... more
  • 3 Months Ago


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

  • Oracle Seattle, WA
  • A BS or MS in Computer Science, or equivalent. Identifies solutions to knowledge of server hardware and software configuration, networking, standard intern... more
  • 3 Months Ago

  • Oracle Seattle, WA
  • Design, develop, troubleshoot and debug software programs for databases, applications, tools, networks etc. Career Level - IC5 more
  • 3 Months Ago

AI Assistant is available now!

Feel free to start your new journey!