Top Web Developer Jobs in Seattle, WA

Build, maintain, and optimize scalable front-end systems and web experiences. Translate Figma designs into reusable components, support large-scale site migrations, improve performance, accessibility, and SEO, and work with cross-functional teams using modern workflows and AI-assisted tools.

Develop and maintain ASP.NET web applications using HTML5, CSS3, JavaScript, jQuery and C#. Collaborate on UI/frontend implementation; contribute to application feature development and maintenance. Seattle-based permanent role requiring work authorization.

Develop and maintain mobile web and single-page UI applications using HTML5, CSS3, AngularJS, jQuery and Bootstrap. Translate functional/non-functional requirements to system requirements, provide production support and performance tuning, implement responsive designs across iOS/Android/Windows Phone, and work with clients in a global delivery environment within the Communications domain.

Design, build, and deliver responsive web features for a global audience. Implement HTML/CSS/JavaScript and jQuery-based UI, ensure strong UX, work with C# back-end code, follow Agile/Scrum, and support e-commerce solutions while maintaining quality and communication.

Front-end design developer responsible for UI prototyping and production, creating responsive interfaces, defining UI patterns and interaction guidelines, and applying conversational UI and bot concepts. Must provide a portfolio of prior work and contribute to visual, motion, and interaction design across evolving platforms.

Develop complex front-end web applications using JavaScript and AngularJS. Build user-focused UI, convert designs into working interfaces, provide portfolio/proof of work, and optionally work with modern video streaming and WebRTC technologies.

Develop and maintain web applications using C# and .NET backend technologies and front-end tech (HTML, CSS, jQuery). MVC experience preferred; knowledge of React, Angular, or Knockout is a plus. Requires a minimum of two years web development experience.

Design, build, and maintain SharePoint-based websites and components (web parts, master pages, content types). Translate business requirements into repeatable solutions, enhance usability and branding, produce documentation, create and run test scenarios, and support multiple high-priority user issues while transferring knowledge to support teams.

Own and ship the marketing website end-to-end: build and maintain a fast, responsive Next.js site, convert Figma designs to production UI, integrate Contentful components, manage CI/CD with Docker, Azure Pipelines and Cloud Run, improve performance, SEO, accessibility, and refactor toward Next.js Server Components while collaborating with Product, Design, and Engineering.

Design and build end-to-end web and AI-powered dashboard features, scale cross-platform full-stack infrastructure, standardize product patterns, mentor engineers, lead cross-team technical projects, and collaborate with product and design to improve user workflows and AI adoption.

The Senior Web Developer will enhance site performance, establish best practices, and develop performance-based release gating mechanisms.

Lead development and maintenance of responsive websites and marketing campaign assets using Node.js and React. Manage backlogs, REST API integrations, Git repositories, Docker deployments, platform performance, security (OAuth2), user access, and stakeholder communication. Mentor developers and deliver cross-functional web improvements.

This role involves leading web platform initiatives, mentoring senior engineers, architecting web applications, and implementing technical strategies for improved performance.

The SDE Web Developer will design, develop, and maintain web applications while leveraging various .NET technologies and Azure services. Responsibilities include customer requirements gathering, working in agile environments, and ensuring high-quality code production.

The SDE Web Developer will develop web applications using C# and .Net technologies, focusing on distributed application development and Azure integration, while collaborating in an agile environment.

Migrate an artisan Squarespace site to Shopify (or recommend alternatives). Import ~125 products (physical, digital, subscriptions), clean product data, configure collections/variants, redesign with a story-first responsive UX, customize Shopify themes using Liquid/HTML/CSS/JS, build reusable sections/templates, ensure performance and mobile responsiveness, configure Stripe and shipping, set up a blog, and collaborate with non-technical founders on best practices.

Contract remote .NET/Kentico web developer to build interactive, dynamic websites. Requires front-end web development experience and familiarity with the Kentico CMS. Six-week engagement.

Build, maintain, and optimize WordPress websites with focus on backend performance and capacity. Develop eCommerce sites and may produce site content. Provide links to past work for review.

Develop and maintain React-based web applications and complex RESTful APIs (Express.js). Implement routing, templates, advanced database queries, nested JSON processing, and integrate REST/SOAP/stream APIs and cloud managed services at scale. Work as an individual contributor in a fast-paced startup environment.

Remote entry-level web developer role building web applications and RESTful services. Work includes frontend development (HTML5, CSS3, JavaScript, jQuery, React/Angular/Ember), integrating REST/SOAP/stream APIs, developing backend APIs with Node.js/Express, and writing complex SQL/NoSQL queries. Product-development, microservices, and startup experience preferred.

The Web Engineer will lead the development and maintenance of Hightouch's marketing website, collaborating with design and marketing teams to create exceptional user experiences and engaging animations.

Support building and redesigning responsive, mobile-friendly websites; create wireframes and sitemaps; develop front-end UIs and assist with back-end tasks; optimize for performance, scalability, and SEO; participate in brainstorming, debugging, testing, and follow clean coding and version-control best practices under developer mentorship.

Work on front-end and back-end web projects: create and redesign websites, build sitemaps and wireframes, collaborate with teams, and focus on UI/UX and performant back-end functionality.

As a full stack web developer, you will develop customer-facing experiences, optimize web experiences, manage UX patterns, and mentor contributors.

Develop large scale production websites using ASP.NET MVC, Web APIs, C#, and front-end technologies like HTML5 and JavaScript.