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Freelance Full Stack Software Developer Jobs in Seattle, WA

Helion

Senior Software Engineer, Full Stack

Everett, WA · On-site

The Senior Software Engineer, Full Stack will design, develop, and operate full-stack applications ... DevOps best practices, using version control (Git), CI/CD (e.g., Buildkite, GitHub Actions), and ...

AllSTEM Connections

Software Engineer III

Seattle, WA · On-site

$193K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

Senior Full-Stack Software Engineer Role Overview We are seeking a Senior Full-Stack Software Engineer to serve as a subject matter expert within our scrum-based delivery team. You will be ...

Brex

Senior Software Engineer, Full Stack

Seattle, WA · On-site

$192K - $240K/yr

What you'll do As a Senior Full-Stack Software Engineer on our Task Workflows Platform team, you ... Experience and interest in leveraging AI developer tools Compensation The expected salary range for ...

Brex

Senior Software Engineer, Full Stack

Seattle, WA · On-site

$192K - $240K/yr

What you'll do As a Senior Full-Stack Software Engineer on our Task Workflows Platform team, you ... Experience and interest in leveraging AI developer tools Compensation The expected salary range for ...

AZX

Senior Engineer (Full Stack)

Seattle, WA · On-site

$140K - $225K/yr

  • Medical

  • PTO

Software Engineer (Senior, Full Stack) About AZX Our mission is to accelerate positive impact in critical industries through AI transformation. We're growing quickly and already work with category ...

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Freelance Full Stack Software Developer information

See Seattle, WA salary details

$27

$67

$97

How much do freelance full stack software developer jobs pay per hour?

As of Aug 14, 2026, the average hourly pay for freelance full stack software developer in Seattle, WA is $67.44, according to ZipRecruiter salary data. Most workers in this role earn between $56.06 and $77.69 per hour, depending on experience, location, and employer.

What are the most commonly searched types of Full Stack Software Developer jobs in Seattle, WA?

The most popular types of Full Stack Software Developer jobs in Seattle, WA are:

Freelance Full Stack Software Developer jobs near you
Infographic showing various Freelance Full Stack Software Developer job openings in Seattle, WA as of August 2026, with employment types broken down into 88% Full Time, 8% Part Time, and 4% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $140,275 per year, or $67.4 per hour.

SDE- Full Stack Developer ( Ex-Amazon is preferred )

Inabia Software & Consulting Inc.

Redmond, WA • On-site

Contractor

Re-posted 6 days ago

Job description

Overview

Inabia is seeking a Full Stack Software Development Engineer for a 12-month onsite contract engagement in Redmond, WA. This is a hands-on build role focused on distributed, cloud-native systems spanning backend services, data systems, and cloud infrastructure. The ideal candidate takes ownership of ambiguous problems and delivers concrete, scalable technical solutions in a fast-moving, agile environment.

Responsibilities

  • Design, build, and ship scalable, fault-tolerant backend services and APIs
  • Build and maintain distributed storage, indexing, and query systems optimized for reliability, cost, and performance
  • Take loosely-defined, ambiguous problems and translate them into concrete technical solutions with clear implementation plans
  • Work across the full stack — backend, data layer, and cloud infrastructure — as the work demands
  • Collaborate with a cross-functional engineering team through sprint planning, code reviews, and retrospectives
  • Ship working software on short, iterative development cycles

Key Qualifications

  • US Citizen or Green Card holder; no visa sponsorship available (C2C, H-1B transfer, OPT/CPT, TN, and third-party visa arrangements not accepted)
  • 4+ years of non-internship professional software development experience
  • Proficiency in at least one of: Java, Python, Go, or SQL
  • Hands-on, production experience with AWS cloud infrastructure (EC2, Lambda, ECS/EKS, RDS, S3, DynamoDB, CloudFormation)
  • Ability to work onsite in Redmond, WA, 5 days per week for the full 12-month contract duration

Preferred Qualifications

  • Experience designing and operating distributed, multi-tiered systems with relational and/or NoSQL databases at scale
  • Exposure to optimization techniques such as linear or nonlinear programming
  • Strong ability to communicate technical tradeoffs clearly to both technical and non-technical stakeholders
  • Comfortable operating with ambiguity — defining solutions from broadly-scoped requirements rather than executing detailed specifications

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