Top Web Developer Jobs in Seattle, WA

Build, design, maintain, and update websites and software applications supporting global language development and Bible translation work. Responsibilities include writing web content, developing with HTML, CSS, JavaScript, APIs, and WordPress, improving SEO, analyzing requirements, supporting users, documenting website management processes, and contributing to product roadmaps. The role requires independent and collaborative work, with travel to development-team meetings and language technology conferences.

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, integrating REST APIs and data formats, improving application performance and scalability, documenting changes, participating in code reviews, and collaborating with technical teams. The role is remote, supports a Washington, DC customer, and requires Public Trust clearance and U.S. citizenship.

This role involves building and maintaining the SAN.com web ecosystem, enhancing product features, improving CI/CD processes, collaborating across teams, and focusing on user experience.

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.

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

Develop web interfaces and multi-tier solutions using Microsoft technologies, TSQL programming, and web services integration. Write high-quality code and unit tests, coordinate with team members, and create technical documentation.

The role involves developing web interfaces, building multi-tier solutions, and programming with SQL and C#. Responsibilities include debugging, documenting, and ensuring high-quality code within a team setting.

The Senior Web Software Engineer will build and maintain web components, own features from inception to production, implement designs, partner with teams, and impact product evolution.

Own and maintain the WordPress platform end-to-end: hosting, security, performance, technical SEO, tracking (GA4/GTM), integrations (HubSpot/APIs), backups, and documentation. Establish environments, deployment workflows, monitoring, and runbooks while partnering with front-end and marketing teams to ensure reliable, high-performing, and compliant site operations.

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.

Build and maintain custom Shopify Plus themes, develop internal tools, manage API integrations, troubleshoot issues, and collaborate on projects for e-commerce operations.

Develop and maintain backend services for the Leap quantum-classical cloud platform. Deliver features across the SDLC, improve system performance and scalability, troubleshoot and resolve production issues, participate in code reviews and on-call rotation, mentor junior developers, and collaborate with cross-functional teams to ship reliable, high-quality software.

The Sr/Staff Frontend Engineer will develop new web applications, enhance UI experiences, architect solutions, and collaborate with various stakeholders to ensure a scalable and secure platform.

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.

Lead backend architecture and implementation for scalable, reliable cloud-hosted web products. Mentor engineers, set standards, integrate agentic AI coding tools, design systems applying ML to large datasets, and balance customer-facing features with technical debt and performance.

Build, customize, and maintain WordPress and Shopify websites; develop and automate CRM builds in HubSpot/HighLevel; integrate sites with CRMs and marketing tools; optimize for performance, SEO, and conversions; manage end-to-end technical implementations and troubleshoot issues while collaborating with marketing and sales teams.

The CJA/Web SDK Engineer designs and maintains data collection systems for analytics. Responsibilities include implementing Adobe Web SDK, ensuring data quality, and collaborating with teams to optimize data flows.

Develop enterprise-level WordPress plugins and themes using PHP and React.js, lead technical vision on projects, and enhance web performance.