Top Web Developer Jobs in Seattle, WA

Build and maintain scalable, internationalized React interfaces for a SaaS platform. Implement localization in front-end components, manage localization files, coordinate translation workflows, and validate localized builds across languages and regions. Partner with engineering, design, vendors, and localization teams to resolve UI and internationalization issues, support localization QA, and ensure release readiness. The role requires strong front-end development, localization engineering, testing, communication, and independent project management skills.

Leads growth engineering for Hiya’s web presence, translating marketing strategy into high-converting experiences. Responsibilities include migrating Webflow to a headless CMS, architecting React and Next.js systems, optimizing performance and SEO, implementing analytics and experimentation, integrating AI and third-party APIs, and scaling localized websites across global markets. The role owns website KPIs, attribution, conversion optimization, accessibility, and collaboration across marketing, product, CRM, and PLG initiatives.

Lead technical direction and architecture for foundational Microsoft Edge and Chromium web platform capabilities. Design and deliver innovations across browser systems, APIs, performance, security, accessibility, and compatibility. Contribute directly to Chromium, web standards, and open-source initiatives while collaborating with browser vendors, standards bodies, and internal teams. Provide technical leadership, mentorship, and end-to-end ownership for complex, cross-organizational engineering efforts.

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.

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.

Seeking a web developer to build and maintain websites or web applications. The posting provides no additional details about responsibilities, qualifications, technologies, compensation, or work arrangements.

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.

Develop and enhance interactive enterprise planning, reporting, and analytics web applications using SAP Analytics Cloud and JavaScript. Responsibilities include building UI/UX components, reviewing requirements and designs, consuming REST APIs, optimizing performance and scalability, debugging, documenting changes, participating in code reviews, and collaborating with team members. The role is remote, supports a federal customer, and requires Public Trust clearance and U.S. citizenship.

Develop and maintain a ServiceNow Service Portal for the NSF Tech Accelerators initiative. Build responsive pages and widgets, implement accessibility standards, apply branding, assess portal UX, and document improvement plans. Collaborate with designers, content developers, program teams, and communications stakeholders to translate user needs and engagement plans into effective digital experiences. The role requires strong HTML, CSS/SCSS, JavaScript, Bootstrap, ServiceNow, responsive design, information architecture, and Section 508/WCAG implementation skills.

Senior .NET Web App Developer responsible for designing and building .NET web applications, implementing Oracle PL/SQL solutions, using Entity Framework and Blazor, applying design principles, producing technical documentation, performing performance tuning, and collaborating in Scrum/Agile teams with Bitbucket, JIRA, Tempo, and Confluence.

Develop and enhance interactive enterprise planning, reporting, and analytics web applications using SAP Analytics Cloud and front-end technologies. Responsibilities include implementing UI/UX components, integrating REST APIs and data formats, improving application performance and scalability, reviewing requirements, documenting changes, participating in code reviews, and collaborating with technical teams. The role supports a federal customer remotely and requires Public Trust clearance and U.S. citizenship.

Develop and support interactive enterprise planning, reporting, and analytics web applications using SAP Analytics Cloud and front-end technologies. Responsibilities include building UI/UX components, reviewing requirements and designs, consuming REST APIs, optimizing performance and scalability, debugging, documenting changes, participating in code reviews, and collaborating with technical teams. The role supports a federal customer remotely and requires Public Trust clearance and U.S. citizenship.

Develop and enhance interactive front-end web applications for the Budget and Spend solution using SAP Analytics Cloud and JavaScript. Responsibilities include building planning and reporting applications, implementing UI/UX components, integrating REST APIs and data formats, improving performance and scalability, documenting changes, conducting code reviews, and collaborating with technical teams.

Develop and support front-end web applications for a Budget and Spend solution using SAP Analytics Cloud and JavaScript. Build interactive planning, reporting, dashboard, and analytics features; review requirements, implement UI/UX components, optimize performance and scalability, consume REST APIs, document changes, participate in code reviews, and collaborate with team members. The remote role supports a Washington, DC customer and requires Public Trust clearance and U.S. citizenship.

Develop and support interactive front-end web applications for the Budget and Spend solution using SAP Analytics Cloud and JavaScript. Build planning and reporting applications, create UI/UX components, integrate REST APIs and data formats, optimize performance and scalability, document changes, review code, and collaborate with technical teams. The role is remote, supports a federal customer, and requires Public Trust clearance and U.S. citizenship.

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.

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.

Lead design and delivery of browser privacy and identity platform features (tracking prevention, FedCM, digital credentials). Drive standards, contribute to Chromium, collaborate with vendors and standards bodies, and provide technical leadership and mentorship across complex, cross-cutting projects focused on correctness, performance, and web compatibility.

Build and maintain Fleetio’s marketing website, including high-converting landing pages and customer funnels. Develop user-facing web experiences, optimize performance, SEO, accessibility, Core Web Vitals, and conversion rates, and integrate headless CMS solutions. Collaborate cross-functionally on technical scoping and delivery, conduct code reviews, monitor analytics, mentor developers, and connect web initiatives to marketing and pipeline goals.

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.

Develops, modernizes, and maintains SharePoint, Internet, and Intranet websites for VA stakeholders and Veterans. Responsibilities include website assessments, templates, mockups, access permissions, coding, Section 508 compliance, content governance, SEO, performance reporting, documentation, and knowledge transfer. The role also supports federal web standards, VA security policies, and transition of website maintenance to government personnel.

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.