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Freelance Full Stack Software Engineer Jobs in Seattle, WA

Senior Software Engineer - Full Stack We're Concentrix. The intelligent transformation partner. Solution-focused. Tech-powered. Intelligence-fueled. The global technology and services leader that ...

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.

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Freelance Full Stack Software Engineer information

See Seattle, WA salary details

$50.6K

$153.4K

$216.8K

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

As of Jul 16, 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 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:
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.
Senior Software Engineer - Full Stack

Senior Software Engineer - Full Stack

Cnx

Bellevue, WA • On-site

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 7 days ago


Job description

Job Title:

Senior Software Engineer - Full Stack

Job Description

We're Concentrix. The intelligent transformation partner. Solution-focused. Tech-powered. Intelligence-fueled.
The global technology and services leader that powers the world's best brands, today and into the future. We're solution-focused, tech-powered, intelligence-fueled. With unique data and insights, deep industry expertise, and advanced technology solutions, we're the intelligent transformation partner that powers a world that works, helping companies become refreshingly simple to work, interact, and transact with. We shape new game-changing careers in over 70 countries, attracting the best talent.
The Concentrix Technical Products and Services team is the driving force behind Concentrix's transformation, data, and technology services. We integrate world-class digital engineering, creativity, and a deep understanding of human behavior to find and unlock value through tech-powered and intelligence-fueled experiences. We combine human-centered design, powerful data, and strong tech to accelerate transformation at scale. You will be surrounded by the best in the world providing market leading technology and insights to modernize and simplify the customer experience. Within our professional services team, you will deliver strategic consulting, design, advisory services, market research, and contact center analytics that deliver insights to improve outcomes and value for our clients. Hence achieving our vision.
Our game-changers around the world have devoted their careers to ensuring every relationship is exceptional. And we're proud to be recognized with awards such as "World's Best Workplaces," "Best Companies for Career Growth," and "Best Company Culture," year after year.
Join us and be part of this journey towards greater opportunities and brighter futures.

Title: Senior Software Engineer - Full Stack

Location: Bellevue, WA - Hybrid role (3-4 days onsite/week)


Senior Software Engineer - Full Stack

As a Senior Software Engineer - Full Stack, you will help build the next generation of Digital Engineering Intelligence Platforms that power operational visibility, engineering productivity, and release reliability at enterprise scale. In this highly collaborative role, you will design and develop modern full-stack solutions that bring together engineering, release, and operational data into a unified experience for teams and leaders. Your work will directly support faster software delivery, stronger operational excellence, and the advancement of AI-enabled engineering capabilities.

Responsibilities

  • Design, develop, and maintain modern full-stack applications that support a unified operational portal for the Digital Engineering organization
  • Build scalable backend services and APIs that aggregate engineering, release, operational, and platform data from multiple enterprise systems
  • Create intuitive dashboards and user experiences that provide real-time visibility into release health, operational metrics, engineering KPIs, platform performance, and organizational readiness
  • Develop cloud-native applications on AWS using Kubernetes, Docker, CI/CD pipelines, and Infrastructure as Code practices
  • Build automation solutions that improve engineering workflows, release operations, operational reporting, and developer productivity
  • Develop data pipelines and system integrations that generate actionable insights across applications, teams, and operational platforms
  • Partner with engineering leaders to identify opportunities to improve delivery outcomes, reduce manual effort, and drive continuous improvement through operational data
  • Contribute to AI-enabled engineering capabilities by building data foundations and platform services that support intelligent automation, predictive insights, copilots, and engineering assistants
  • Troubleshoot complex production issues across applications, APIs, cloud infrastructure, Kubernetes, distributed systems, and enterprise integrations
  • Strengthen observability through dashboards, monitoring, alerting, tracing, and operational telemetry
  • Mentor junior engineers through code reviews, technical guidance, and engineering best practices
  • Collaborate cross-functionally with Product Management, Platform Engineering, SRE, Security, UX, and engineering teams to deliver secure, scalable, and reliable software solutions

Qualifications

  • Proven experience as a Full Stack Software Engineer building and delivering modern enterprise applications
  • Strong expertise in frontend and backend development with the ability to build scalable, user-friendly full-stack solutions
  • Experience designing and developing APIs, backend services, and system integrations across multiple platforms
  • Hands-on experience with cloud-native development in AWS environments
  • Strong working knowledge of Kubernetes, Docker, CI/CD practices, and Infrastructure as Code
  • Experience building dashboards, operational portals, or data-driven applications that translate complex information into clear, actionable insights
  • Familiarity with data pipelines, observability tooling, monitoring, alerting, and operational telemetry
  • Ability to troubleshoot and resolve complex production issues across distributed systems and cloud environments
  • Experience building automation that improves developer workflows, release processes, or operational efficiency
  • Understanding of AI-enabled platforms, intelligent automation, or data foundations that support predictive and assistive engineering capabilities
  • Strong collaboration and communication skills with the ability to work effectively across technical and business teams
  • Demonstrated commitment to mentoring team members and contributing to engineering excellence

The base salary range for this position is $92,250 -$140,000 plus incentives that align with individual and company performance. Actual salaries will vary based on work location, qualifications, skills, education, experience, and competencies. Benefits available to eligible employees in this role include medical, dental, and vision insurance, comprehensive employee assistance program, 401(k) retirement plan, paid time off and holidays.

The deadline to apply for this position is: 07/12/2026. This position is for an existing, immediate vacancy. We are currently seeking to fill this role with an individual who can start as soon as possible.

As part of the hiring process, candidates may be required to undergo background screening and identity verification, where permitted by applicable law and consistent with the requirements of the role. Certain verification processes used by the Company or its service providers may involve technologies that rely on biometric identifiers or biometric information, where permitted by law. If biometric identifiers or biometric information are collected, used, or stored, the Company will provide the legally required disclosures and obtain any required written consent prior to such collection, and will handle such information in accordance with applicable biometric privacy laws and Company policies.

#Concentrix

#LI-Hybrid

#LI-Onsite

#BellevueWA

Location:

USA Bellevue 13555 SE 36th Street

Language Requirements:

Time Type:

Full time


Physical and Mental Requirements:
The employee is regularly required to operate a computer, keyboard, telephone/headset, and/or other office equipment as essential functions of this position. Work is generally sedentary in nature.

Equal Employment Opportunity:

Concentrix is an equal opportunity and affirmative action (EEO-AA) employer. We promote equal opportunity to all qualified individuals and do not discriminate in any phase of the employment process based on race, color, religion, sex, sexual orientation, gender identity, national origin, age, pregnancy or related condition, disability, status as a protected veteran, or any other basis protected by law.

For more information regarding your EEO rights as an applicant, please visit the following websites:

English

Spanish

Accommodation:

Concentrix welcomes and encourages applications from candidates with disabilities and is committed to providing an inclusive recruitment process.If you require reasonable accommodation to participate in any stage of the application or interview process, please let us know. Requests may be made by contacting app.acco@concentrix.com. All information will be treated confidentially and used solely to facilitate your participation in the recruitment process.

Artificial Intelligence:

As part of our recruitment process, we may use artificial intelligence (AI) tools to assist in the screening and/or assessment of job applicants. These tools could be used to evaluate resumes, applications, and other materials submitted to help us identify the best candidates for the role.

Work Authorization:

In accordance with federal law, only applicants who are legally authorized to work in the United States will be considered for this position. Must reside in the United States or have a valid U.S. address for residence.

For further information on available work states and Equal Employment Opportunity as an applicant, please click HERE