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Freelance Full Stack Software Engineer Jobs in Seattle, WA

NiCE

Senior Full Stack Software Engineer

Seattle, WA · On-site

They are seeking a Senior Full Stack Software Engineer to join their U.S.-based R&D team, focusing on building AI-powered customer experience solutions and accelerating development workflows.

OpenAI

Full Stack Software Engineer, Codex

Seattle, WA · On-site

$255K - $405K/yr

About the Role We're hiring a Full Stack Software Engineer to help invent the next generation of AI-powered software development workflows. "Full stack" in this role means much more than traditional ...

NICE

Senior Full Stack Software Engineer

Seattle, WA · On-site

Have you got what it takes? * 5+ years of professional software engineering experience with strong full-stack fundamentals * Proficiency in TypeScript/Node.js or Go on the backend and React ...

NICE

Senior Full Stack Software Engineer

Seattle, WA · On-site

Have you got what it takes? * 5+ years of professional software engineering experience with strong full-stack fundamentals * Proficiency in TypeScript/Node.js or Go on the backend and React ...

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Freelance Full Stack Software Engineer information

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$50.6K

$153.4K

$216.8K

How much do freelance full stack software engineer jobs pay per year?

As of Jul 29, 2026, the average yearly pay for freelance full stack software engineer in Seattle, WA is $153,373.00, according to ZipRecruiter salary data. Most workers in this role earn between $126,300.00 and $179,800.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Freelance Full Stack Software Engineer, and why are they important?

To thrive as a Freelance Full Stack Software Engineer, you need strong proficiency in both front-end (e.g., HTML, CSS, JavaScript) and back-end (e.g., Node.js, Python, databases) development, often supported by a relevant degree or portfolio of work. Familiarity with version control systems like Git, cloud platforms such as AWS or Azure, and frameworks like React and Django is typically required. Exceptional communication, self-motivation, and time management skills help you manage client relationships and deliver projects independently. These competencies ensure you can handle diverse project requirements, maintain client trust, and consistently deliver high-quality, end-to-end solutions.

What are some common challenges faced by freelance full stack software engineers, and how can they be managed?

Freelance full stack software engineers often navigate challenges such as managing client expectations, balancing multiple projects, and keeping up with rapidly evolving technologies. Communication is key—setting clear project milestones and maintaining regular updates helps ensure alignment with clients. Additionally, effective time management and continuous learning are vital to juggling diverse tasks and staying competitive in the field. Building a reliable professional network can also help with referrals and collaborative opportunities.

What does a Freelance Full Stack Software Engineer do?

A Freelance Full Stack Software Engineer is an independent contractor who designs, develops, and maintains both the front-end (client-side) and back-end (server-side) components of web or software applications. They work with a variety of programming languages, frameworks, and tools to build complete, functional products for clients or companies. Their responsibilities often include gathering project requirements, coding, debugging, deploying applications, and sometimes managing databases or cloud infrastructure. Freelance full stack engineers have the flexibility to choose their projects and clients, often working remotely or on a contract basis.
What are the most commonly searched types of Full Stack Software Engineer jobs in Seattle, WA? The most popular types of Full Stack Software Engineer jobs in Seattle, WA are:
What are popular job titles related to Freelance Full Stack Software Engineer jobs in Seattle, WA? For Freelance Full Stack Software Engineer jobs in Seattle, WA, the most frequently searched job titles are:
What job categories do people searching Freelance Full Stack Software Engineer jobs in Seattle, WA look for? The top searched job categories for Freelance Full Stack Software Engineer jobs in Seattle, WA are:
Freelance Full Stack Software Engineer jobs near you
Infographic showing various Freelance Full Stack Software Engineer job openings in Seattle, WA as of July 2026, with employment types broken down into 100% Full Time. Highlights an 67% In-person, and 33% Hybrid job distribution, with an average salary of $153,373 per year, or $73.7 per hour.

Full Stack Software Engineer, Constellation Tools (Starlink)

SpaceX

Redmond, WA

$145K - $175K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 15 days ago

SpaceX rating

8.8

Company rating: 8.8 out of 10

Based on 147 frontline employees who took The Breakroom Quiz

14th of 71 rated aerospace companies

Job description

FULL STACK SOFTWARE ENGINEER, CONSTELLATION TOOLS (STARLINK)

Starlink is the world's largest satellite constellation and is providing fast, reliable internet to millions of users worldwide. As a member of the Constellation Tools team at SpaceX, you'll build the user interfaces and backend to enable safe and efficient operations for all Starlink satellites and ground assets. Your products are the operational tools operations, engineering, and reliability teams rely on. In this role you'll curate smooth user experiences with thoughtful designs while limiting software complexity.  Your contributions will directly impact operational safety for satellites and the ability to scale the network. 

RESPONSIBILITIES:

  • Develop well-architected, highly reliable, responsive, and performant web applications to command, control, and monitor fleets of assets
  • Create aesthetic and easy-to-use user interfaces that reduce the operational load of operators and maintain high guardrails for safety
  • Create and apply techniques, tools, and infrastructure that decrease software complexity and maintenance over time
  • Maintain high software standards and software engineering best practices across the full stack
  • Regularly sit with Operators to obtain firsthand feedback of how the team's products are used and what improvements can be made
  • Demonstrate a strong attitude to learn and adapt quickly, diving deep into new technologies as needed to become an expert in frontend and backend technologies alike (while prior expertise in key areas is a plus)

BASIC QUALIFICATIONS:

  • Bachelors degree in STEM & 1+ year of industry and/or internship experience; OR 3+ years of professional software development experience in lieu of a STEM degree.

PREFERRED SKILLS AND EXPERIENCE:

  • Frontend experience in Angular, React, or a similar JavaScript framework
  • Programming experience in Python, C#, .NET, Go, Scala, Java, or similar object-oriented language
  • Experience with PostgreSQL, CockroachDB, or similar relational database technologies
  • Production experience with infrastructure tools such as Docker and Kubernetes
  • Experience with version control, continuous integration, and continuous delivery systems
  • Expertise in profiling and improving application performance
  • Experience with build systems (Make, Bazel/Pants/Buck, Gradle) and package management tools (pip, npm)
  • Strong attention to detail
  • A drive to deliver exceptional operations tools and willingness to own all outcomes

ADDITIONAL REQUIREMENTS:

  • Ability to work extended hours or weekends as needed for mission critical deadlines
  • Ability to work on an "on-call" basis on a weeklong rotational schedule

COMPENSATION AND BENEFITS:      

Pay range:      
Full Stack Software Engineer/Level I: $125,000.00 - $145,000.00/per year
Full Stack Software Engineer/Level II: $145,000.00 - $175,000.00/per year

Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience.

Base salary is just one part of your total rewards package at SpaceX. You may also be eligible for long-term incentives, in the form of company stock, stock options, or long-term cash awards, as well as potential discretionary bonuses and the ability to purchase additional stock at a discount through an Employee Stock Purchase Plan. You will also receive access to comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short and long-term disability insurance, life insurance, paid parental leave, and various other discounts and perks. You may also accrue 3 weeks of paid vacation and will be eligible for 10 or more paid holidays per year. Employees in Washington State accrue paid sick time in compliance with state and federal law. Company shuttles are offered to employees for roundtrip travel from select Seattle locations to the SpaceX Redmond office Monday to Friday.

What SpaceX employees say

Pay

Benefits

Hours and flexibility

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About SpaceX

Sourced by ZipRecruiter

Industry

Aerospace product and parts manufacturing, data services, guided missile and space vehicle manufacturing and satellite telecommunications

Company size

1,001 - 5,000 Employees

Headquarters location

Hawthorne, CA, US

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