Top Web Developer Jobs in Seattle, WA

Build and support Ivanti’s global corporate website and digital experiences across the full web stack. Develop responsive, accessible front-end experiences and C#/.NET applications, CMS components, APIs, integrations, databases, and deployment pipelines. Collaborate with Creative and Marketing, implement analytics and privacy tooling, troubleshoot complex production issues, and manage projects from estimation through launch and support. Use AI coding tools while maintaining quality, security, performance, and maintainability.

Develops, maintains, tests, troubleshoots, and enhances secure intranet web applications supporting VA research programs. Integrates ColdFusion/CFML applications with Microsoft SQL Server, writes queries and stored procedures, resolves production issues, coordinates releases, improves usability, documents technical solutions, and communicates with technical and non-technical stakeholders.

Develop, maintain, integrate, test, and support database-driven web applications for VHA ORD programs. Responsibilities include SQL queries and stored procedures, application debugging, functional and regression testing, production troubleshooting, deployment coordination, defect resolution, documentation, and communication with technical and non-technical stakeholders.

Own web compatibility triage and incident response across DuckDuckGo browsers on Mac, Windows, iOS, and Android. Debug complex web applications and third-party code, distinguish site, browser, and privacy-related issues, reverse-engineer obfuscated code, build durable cross-platform fixes, and develop automation and LLM agent tooling to reproduce and triage breakage. Lead ambiguous projects independently and communicate with technical and non-technical stakeholders.

Develops and maintains secure, accessible, responsive WordPress websites and web applications for Military OneSource. Responsibilities include PHP and JavaScript development, CMS customization, REST API integrations, UX/UI implementation, Section 508 and WCAG compliance, accessibility testing, production troubleshooting, performance optimization, Agile delivery, Git workflows, and collaboration with cybersecurity and DevSecOps teams in a Federal environment.

Develop and maintain Microsoft 365, SharePoint, Power Platform, and public-facing web solutions for a federal agency. Responsibilities include front-end and back-end development, automation, accessibility compliance, secure coding, Agile delivery, stakeholder demonstrations, Tier II/III support, documentation, and IT service portal enhancements. The role requires collaboration across enterprise IT environments and compliance with government coding, security, and accessibility standards.

Leads architecture and development of Thunderbird’s web-based Services products, including calendar and secure file storage offerings. Responsibilities include writing code, prototyping, selecting technologies, developing analytics and infrastructure, solving complex problems, guiding product direction, mentoring engineers, and improving scalability and sustainability. The role collaborates across engineering, product, design, QA, Mozilla, and open-source communities in a fully remote environment.

Lead architecture and technical direction for Thunderbird’s web-based Services products, including calendar and secure file storage offerings. Responsibilities include writing code, prototyping, making technology decisions, developing analytics and infrastructure, solving complex problems, mentoring engineers, collaborating across product and design teams, and improving system scalability and maintainability. The role also contributes to product growth, open-source collaboration, and data-informed decisions within a fully remote international team.

The role involves leading frontend development, maintaining UI components, overseeing CI/CD pipelines, mentoring engineers, and enhancing application performance in collaboration with cross-functional teams.

Build and improve responsive collector-facing web applications using React and TypeScript. Integrate GraphQL APIs, create reusable accessible components, own features from planning through production, investigate bugs, improve performance, write tests, and collaborate with product, design, and backend engineers in a fast-moving startup.

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.

Build and ship enterprise WordPress features across frontend and backend, including custom Gutenberg blocks, React components, plugins, themes, PHP, HTML, and CSS. Own tickets from requirements through production, translate Figma designs into responsive experiences, use AI-assisted development responsibly, and collaborate asynchronously in English with distributed engineering, design, and delivery teams.

Own and evolve LiveKit’s developer-facing website by building high-performance web experiences, reusable brand components, motion systems, and launch pages. Translate brand and design concepts into polished production code, maintain strong performance budgets, and collaborate closely with designers, marketers, and engineers. The role emphasizes front-end engineering, animation, interaction design, speed, and self-directed delivery.

Own the development of LiveKit’s marketing website and brand system. Build high-performance launch and product pages, reusable components, motion patterns, and tooling that translate brand designs into polished web experiences. Collaborate with designers, marketers, and design engineers while maintaining strict performance standards and Core Web Vitals. The role emphasizes front-end engineering, interaction design, animation, fast delivery, and solving complex technical problems.

Build and maintain responsive WordPress websites, landing pages, reusable templates, and digital lead-generation experiences. Use AI-assisted development tools to accelerate coding, publishing, testing, and troubleshooting while reviewing code for quality and security. Implement technical SEO, analytics, conversion tracking, integrations, performance improvements, and QA. Manage themes, plugins, staging, deployment, backups, and website security while supporting scalable publishing workflows and collaborating with marketing and business teams.

Provides hands-on technical leadership for Pantheon’s P1 zero-to-one product and company-wide engineering strategy. Owns architecture across real-time collaboration, APIs, data, publishing, integrations, and developer experience; establishes reliability, security, observability, and delivery standards; guides build-versus-buy decisions; mentors senior engineers; partners with product, design, security, infrastructure, and customers; and contributes code to validate architecture and unblock critical initiatives.

Own and maintain deepgram.com end-to-end (Next.js front/back), Sanity CMS, component library, CI/CD, and QA. Lead i18n, technical SEO, AI/LLM discoverability, experimentation infrastructure, marketing integrations (GTM, GA4, HubSpot), and security audits while directing agency work and shipping high-velocity marketing site changes.

Develop and maintain full-stack Drupal websites and web applications using PHP, Twig, JavaScript, CSS/SCSS, and MySQL. Build custom modules and themes, integrate APIs, manage content, troubleshoot and review code, and convert wireframes into responsive webpages. Support SEO, accessibility, privacy, analytics, and performance improvements while collaborating with marketing, engineering, creatives, product managers, and project managers. The role is remote with PST core hours.

Develop, maintain, migrate, and secure client websites, primarily using WordPress. Build front-end interfaces and PHP backends, manage ecommerce platforms, implement automations and integrations, optimize SEO and analytics, and provide ongoing technical support. The role requires managing multiple client projects, communicating technical information clearly, documenting work, and collaborating with designers and other contractors.

Build full-stack features for a real-time collaborative content platform, spanning backend services, APIs, and frontend systems. Design and implement maintainable, well-tested software; contribute to architecture and technical decisions; collaborate with product and design; integrate AI into development and product workflows; participate in code reviews; and help establish engineering quality standards on an early-stage team.

Design, build and configure Java-based web applications and web services. Develop and maintain SOAP and REST APIs using Spring, J2EE, CXF/Axis2; perform backend Oracle CRUD, analysis, cleanup, and testing.

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.

Develop and optimize customer facing web experiences, manage UX patterns, develop WebAPIs, mentor contributors, requiring 5+ years of web development experience.

Design, develop, and maintain scalable full-stack enterprise web applications, including frontends, backend services, APIs, databases, and integrations. Collaborate with stakeholders, product owners, QA, DevOps, and engineering teams to translate requirements into technical solutions. Own features throughout the software lifecycle, participate in architecture and code reviews, modernize legacy systems, troubleshoot production issues, and improve reliability, performance, and engineering practices.