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Software Developer Contract Jobs in Mercer Island, WA

Protingent

Senior Software Engineer

Bellevue, WA · On-site

$56 - $95/hr

Protingent Staffing has an exciting contract Senior Software Engineer opportunity. Job Responsibilities: * Design, implement, document, and test software based on formally defined requirements and ...

Overland AI

Infrastructure Software Engineer

Seattle, WA · On-site

$120K - $200K/yr

Backed by eight-figure contracts across the Department of Defense, we are strengthening national ... Build internal tooling, utilities, and automation that improve developer productivity, software ...

YO AI Labs

Senior Software Engineer - Remote

Seattle, WA · Remote

$139K - $183K/yr

Contract Location: Remote Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high ...

Oracle

Lead Principal Platform Software Engineer

Seattle, WA · On-site

$153K - $206K/yr

Experience designing service contracts, APIs, SDKs, adapter frameworks, or developer platforms for ... Apply software engineering best practices to deliver high-quality, maintainable, and well-tested ...

K2 Space

Ground Software Engineer

Seattle, WA · On-site

$123K - $150K/yr

... in signed contracts across commercial and US government customers - we're mass-producing the ... The Role As a Software Engineer on our Ground Software team, you are responsible for creating the ...

New

K2 Space

Ground Software Engineer

Seattle, WA

$123K - $150K/yr

... in signed contracts across commercial and US government customers - we're mass-producing the ... The Role As a Software Engineer on our Ground Software team, you are responsible for creating the ...

New

Webtellect, LLC

FE Developer + React

Seattle, WA · On-site +1

$118K - $137K/yr

We build software for those companies who have funding but not the resources or for those companies ... Additional Information Notes: * 6 month contract. * ** No 3rd parties. ** * ** No Visas allowed

Webtellect, LLC

FE Developer + React

Seattle, WA

$118K - $137K/yr

We build software for those companies who have funding but not the resources or for those companies ... Additional Information Notes: * 6 month contract. * ** No 3rd parties. ** * ** No Visas allowed

Slope

Senior Director, Software Engineering

Bellevue, WA · On-site

$292 - $386/hr

... contract requirements * Lead and scale a high‑performing organization of software engineers ... across multiple disciplines: embedded systems, Android/Linux platforms, AR/VR, distributed systems ...

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Showing results 41-60

All JobsSoftware Developer Contract JobsSoftware Developer Contract Jobs in Mercer Island, WA

Software Developer Contract information

See Mercer Island, WA salary details

$58.8K

$137K

$203.3K

How much do software developer contract jobs pay per year?

As of Aug 9, 2026, the average yearly pay for software developer contract in Mercer Island, WA is $136,980.00, according to ZipRecruiter salary data. Most workers in this role earn between $110,200.00 and $159,200.00 per year, depending on experience, location, and employer.

What are the typical work arrangements and expectations for contract software developers?

Contract Software Developers are usually hired for specific projects or defined timeframes, which can range from several weeks to multiple months, often working remotely or on-site depending on client needs. They are expected to quickly understand project requirements, deliver code efficiently, and collaborate with both in-house teams and other contractors, maintaining flexibility to adapt to different workflows and tools. Because contract roles may not include the same onboarding experience as permanent positions, self-motivation and strong independent work habits are important. This work arrangement provides valuable exposure to various industries and technologies, often expanding a developer’s professional network and enhancing career versatility.

What are the key skills and qualifications needed to thrive as a software developer contract?

A successful Software Developer Contract requires strong programming abilities, solid knowledge of software development methodologies, and relevant project or domain expertise, often supported by a degree in computer science or a related field. Familiarity with languages like Java, Python, or JavaScript, as well as tools such as Git, Agile frameworks, and certification in areas like AWS or Scrum, is highly valued. Excellent problem-solving skills, adaptability, effective communication, and an ability to quickly integrate into new teams are crucial soft skills. These competencies enable contract developers to deliver high-quality solutions while efficiently navigating diverse projects and rapidly changing work environments.

What is a software developer contract?

A Software Developer Contract job is a temporary or project-based position where a developer is hired for a specific duration, typically through a contract agreement. Contractors may work independently, for an agency, or directly with a company to develop, test, and maintain software applications. These roles often offer flexibility but may not include benefits like health insurance or paid time off. Contract developers are usually paid hourly or per project and may work remotely or on-site depending on the employer's needs.

What are the most commonly searched types of Software Developer jobs in Mercer Island, WA? The most popular types of Software Developer jobs in Mercer Island, WA are:
What job categories do people searching Software Developer Contract jobs in Mercer Island, WA look for? The top searched job categories for Software Developer Contract jobs in Mercer Island, WA are:
What cities near Mercer Island, WA are hiring for Software Developer Contract jobs? Cities near Mercer Island, WA with the most Software Developer Contract job openings:
Software Developer Contract jobs near you
Infographic showing various Software Developer Contract job openings in Mercer Island, WA as of July 2026, with employment types broken down into 66% Full Time, 6% Part Time, 11% Temporary, and 17% Contract. Highlights an 83% In-person, and 17% Remote job distribution, with an average salary of $136,980 per year, or $65.9 per hour.

Senior Software Engineer

Protingent

Bellevue, WA • On-site

$56 - $95/hr

Contractor

Medical, Retirement, PTO

Re-posted 23 days ago

Job description


Position Title: Senior Software Engineer
Position Description: Protingent Staffing has an exciting contract Senior Software Engineer 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:
  • Bachelor's degree in applicable field of Engineering.
  • 6+ years of relevant experience on web application development.
  • Advanced programming skills in Python and JavaScript.
  • 3+ years in-depth experience and expertise with Django and DRF.
  • 3+ years in-depth experience with least one JavaScript framework like Vue3.
  • 3+ years regularly writing software tests.
  • Advanced capabilities with software development tools, including git, IDEs, profilers, debuggers, test frameworks, packaging tools.
  • 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.
  • Strong communication skills desired.
  • Actual position starting level and title will be determined based on assessment of qualifications.
  • Travel Required: 0-5%

Job Details:
  • Contract
  • Pay Rate Range: $56-$95 (Pay rates are approved based on candidate location, education and experience)
  • Location: Bellevue, WA or 100% REMOTE
  • 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.
Meet Your Recruiter
Abby Hubbard
I joined Protingent in the Spring of 2021 as a sales intern, transitioning to a full-time Technical Recruiter after graduating from the University of Washington in June 2021. Initially, I focused on supporting our spaceflight clients, later expanding to industries such as sustainable energy and nuclear power. While I've broadened my recruiting scope, I'm still partial to aerospace engineering, especially anything related to propulsion technology.
My recruiting style focuses on individual candidate needs and relationship building. My philosophy is to lead with empathy and integrity. My favorite thing about recruiting is the opportunity to learn something new every day by talking to the most intelligent people/engineers, as well as the potential to impact critical industries at the staffing level.
When I'm not recruiting, I love spending time outdoors - hiking, camping, roller skating, reading in parks, and swimming in Lake Union (when the Seattle weather permits). I also enjoy thrift shops, sewing/up-cycling clothes, and shooting 35mm film.

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