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Full Time Freelance Software Developer Jobs in Seattle, WA

AtHoc

Principal Mobile Developer

Bellevue, WA · On-site

$188K - $264K/yr

This opportunity allows those passionate about Agile software development on Android to work with a ... full-time eligible employees for their contribution to BlackBerry's success. VIP payments are made ...

AtHoc

Principal Mobile Developer

Seattle, WA · On-site

$188K - $264K/yr

This opportunity allows those passionate about Agile software development on Android to work with a ... full-time eligible employees for their contribution to BlackBerry's success. VIP payments are made ...

AST

Software Engineer

Tacoma, WA · On-site

$125K - $140K/yr

Software Engineer At AST, we enhance the efficiency, productivity, and safety of flexibleaseptic ... This is a full-time, on-site position based in Tacoma. AST is an equal opportunity employer.

AST

Software Engineer

Tacoma, WA · On-site

$125K - $140K/yr

Software Engineer At AST, we enhance the efficiency, productivity, and safety of flexible aseptic ... This is a full-time, on-site position based in Tacoma. AST is an equal opportunity employer.

Energysavvy

Software Engineer

Seattle, WA · On-site

Developer Friendly Culture - We deploy in one click, run continuous integration and contribute to ... Work fulltime in Seattle * US or permanent citizenship * Fun to work with Thanks for your interest ...

Anduril Industries

Software Engineer, C++

Bellevue, WA · On-site

$166K - $220K/yr

ABOUT THE JOB At Anduril, our Software Engineers are at the forefront of defense technology ... Highly competitive equity grants are included in the majority of full time offers; and are ...

Nastech Global

C++, gSOAP Developer

Bellevue, WA · On-site

$55.25 - $74.50/hr

Bellevue, WA (onsite) Job Type: Full time Experience in C++ /Soap and Linux mandatory skills ... Minimum 5 years of experience in C++ programming Experience of software development and debugging ...

Vizio

(USA) Senior, Software Engineer

Bellevue, WA · On-site

$108K - $216K/yr

... full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high ... Option 2: 5 years' experience in software engineering or related area. Preferred Qualifications.

Vizio

(USA) Senior, Software Engineer

Federal Way, WA · On-site

$108K - $216K/yr

... full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high ... Option 2: 5 years' experience in software engineering or related area. Preferred Qualifications.

Vizio

(USA) Senior, Software Engineer

Sammamish, WA · On-site

$108K - $216K/yr

... full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high ... Option 2: 5 years' experience in software engineering or related area. Preferred Qualifications.

Vizio

(USA) Senior, Software Engineer

Auburn, WA · On-site

$108K - $216K/yr

... full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high ... Option 2: 5 years' experience in software engineering or related area. Preferred Qualifications.

Vizio

(USA) Senior, Software Engineer

Bremerton, WA · On-site

$108K - $216K/yr

... full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high ... Option 2: 5 years' experience in software engineering or related area. Preferred Qualifications.

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Showing results 21-40

All JobsSoftware Developer JobsFull Time Freelance Software Developer JobsFull Time Freelance Software Developer Jobs in Seattle, WA

Full Time Freelance Software Developer information

See Seattle, WA salary details

$54.6K

$127.3K

$188.9K

How much do full time freelance software developer jobs pay per year?

As of Aug 6, 2026, the average yearly pay for full time freelance software developer in Seattle, WA is $127,283.00, according to ZipRecruiter salary data. Most workers in this role earn between $102,400.00 and $147,900.00 per year, depending on experience, location, and employer.

How do full time freelance software developers typically manage client communication and project deadlines?

Full-time freelance software developers often juggle multiple projects and clients, making effective communication and deadline management essential. They usually rely on project management tools like Trello, Jira, or Asana to track tasks and deadlines, and schedule regular check-ins with clients via email or video calls to ensure alignment. Setting clear expectations about availability and deliverables early in the project helps avoid misunderstandings. Additionally, many freelancers allocate buffer time for unexpected issues to ensure they can consistently meet deadlines and maintain a positive client relationship.

What skills and qualifications are needed to thrive as a full time freelance software developer?

To thrive as a Full Time Freelance Software Developer, you need strong programming skills, a solid understanding of software development principles, and experience with relevant frameworks or languages, often backed by a computer science degree or equivalent experience. Familiarity with version control systems like Git, project management tools such as Jira or Trello, and cloud platforms is highly beneficial. Excellent self-management, client communication, and problem-solving abilities help freelancers stand out in a competitive market. These skills ensure you can deliver quality work independently, collaborate effectively with clients, and manage multiple projects successfully.

What is a full time freelance software developer?

A Full Time Freelance Software Developer is a professional who works independently, rather than as an employee, to design, develop, and maintain software for clients. They typically find and manage their own projects, set their own schedules, and may work for multiple clients at once. Although they are not tied to one employer, they often work similar hours to traditional employees to complete full-time workloads. Their responsibilities may include coding, debugging, testing, and client communication. Freelance software developers need both technical expertise and self-management skills for success.

What is the difference between Full Time Freelance Software Developer vs In-House Software Developer?

AspectFull Time Freelance Software DeveloperIn-House Software Developer
Work EnvironmentRemote, flexible locationsCompany office or designated workspace
CredentialsTypically requires programming skills, portfolio, sometimes certificationsSimilar credentials, often with company-specific onboarding
Employment StatusIndependent contractor or freelancerFull-time employee
Project ScopeVaries across clients and projectsFocused on company products or services

Full Time Freelance Software Developers work independently, often remotely, handling multiple clients, while In-House Software Developers are employed by a single company, working on internal projects in a fixed environment. Both roles require strong programming skills and similar credentials, but differ mainly in work setting and employment structure.

What are popular job titles related to Full Time Freelance Software Developer jobs in Seattle, WA? For Full Time Freelance Software Developer jobs in Seattle, WA, the most frequently searched job titles are:
What job categories do people searching Full Time Freelance Software Developer jobs in Seattle, WA look for? The top searched job categories for Full Time Freelance Software Developer jobs in Seattle, WA are:
Full Time Freelance Software Developer jobs near you
Infographic showing various Full Time Freelance Software Developer job openings in Seattle, WA as of July 2026, with employment types broken down into 82% Full Time, 5% Part Time, 1% Temporary, and 12% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution, with an average salary of $127,283 per year, or $61.2 per hour.

Embedded Software Engineer II

Globenet Consulting Corp

Lynnwood, WA • On-site

$50 - $55/hr

Full-time

Posted 14 days ago

Job description

Benefits:
  • Competitive salary
  • Opportunity for advancement
  • Training & development

Embedded Software Engineer IILocation: Mossville, IL — Onsite, five days per week
Duration: 12-month contract
Why Join This Opportunity?
  • Work on advanced embedded control software for diesel engine and aftertreatment systems.
  • Contribute throughout the complete software development lifecycle.
  • Collaborate with experienced software, systems, validation, and testing teams.
  • Gain exposure to production-level embedded software in the heavy-equipment industry.
  • Work in a primarily office-based engineering environment with limited laboratory interaction.
Position Overview
The AES Group Inc. is seeking an Embedded Software Engineer II to support the development, enhancement, documentation, validation, and maintenance of embedded engine-control and aftertreatment software.
The ideal candidate has hands-on experience with MATLAB, Simulink, and Stateflow, along with strong technical documentation and cross-functional communication skills.
Key Responsibilities
  • Design, develop, and maintain embedded engine-control and aftertreatment software strategies.
  • Create control logic, software models, flow diagrams, and architectures using MATLAB, Simulink, and Stateflow.
  • Support concept development, implementation, validation, documentation, release, and production support.
  • Troubleshoot existing production software and implement continuous improvements.
  • Prepare technical documentation, engineering diagrams, flowcharts, and ISO-aligned design documents.
  • Collaborate with software developers, systems engineers, validation teams, and other engineering stakeholders.
  • Lead technical discussions to gather requirements and develop practical software solutions.
  • Analyze engine-test data and support software-related troubleshooting.
  • Review HIL and SIL validation results and work with validation engineers to resolve issues.
Required Qualifications
  • Bachelor’s degree in Computer Science, Software Engineering, Mechatronics Engineering, or a related discipline.
  • Two to four years of full-time industrial embedded software development experience.
  • Hands-on experience with MATLAB, Simulink, and Stateflow.
  • Experience developing or maintaining embedded control software for production systems.
  • Strong understanding of the embedded software development lifecycle.
  • Experience creating technical documentation, engineering diagrams, and flowcharts.
  • Strong written, verbal, analytical, and cross-functional collaboration skills.
Preferred Qualifications
  • Experience in automotive, heavy equipment, aerospace, industrial automation, or embedded systems.
  • Knowledge of diesel engine controls or aftertreatment systems.
  • Familiarity with Hardware-in-the-Loop and Software-in-the-Loop testing.
  • Exposure to Embedded C or C++.
  • Experience supporting software validation and interpreting test results.
Work Environment
The position is approximately 90% office-based, with occasional interaction in engine-testing laboratories. Engineers primarily review test results electronically and support software strategy development. Standard personal protective equipment may be required when entering laboratory areas.
Core Skills and Tools
  • Embedded software development
  • MATLAB, Simulink, and Stateflow
  • Engine-control software
  • HIL and SIL testing
  • Technical documentation
  • Software strategy development
  • Cross-functional engineering collaboration
Ready to make an impact? Apply now and join us on our journey!