Top Web Developer Jobs in Seattle, WA

Design, develop, and maintain front-end and back-end features for Node/Angular web applications on cloud platforms. Contribute to architecture, production management, DevOps, troubleshooting, and cloud infrastructure deployment and support.

The role involves developing and supporting Shopify and Wordpress sites, custom apps/plugins, managing projects, and improving marketing automation processes.

The Web Developer SSR will focus on Shopify and Wordpress, developing custom apps/plugins and improving clients' marketing automation processes.

The role involves web development on Shopify and Wordpress sites, including feature addition, bug fixing, and improving client workflow through marketing automation tools.

The Web Developer will support transitioning open-source software prototypes to proprietary systems, requiring extensive experience in full-stack web development and associated technologies.

Develop, maintain, and improve web applications and interfaces using Python and modern front-end technologies. Write clean, testable code, debug, integrate back-end data, document features, ensure security best practices, and collaborate with team members and customers to deliver user-focused solutions.

Build and maintain enterprise WordPress plugins, themes, and Gutenberg blocks using PHP and React.js. Consult with clients, debug legacy systems and databases, support product offerings (ElasticPress.io, SiteWatch), and manage multiple concurrent projects while ensuring scalable, high-quality code and strong client communication.

Responsible for building, maintaining, and optimizing marketing websites across multiple SaaS products. Own CMS configuration, front-end implementation, performance (Core Web Vitals), technical SEO/schema, tracking (GTM/GA4), A/B testing, and deployment workflows. Collaborate with Marketing, SEO/AEO/GEO, Design, and agency partners to deliver high-converting, accessible, and AI-consumable site experiences while documenting processes and supporting staging/UAT/production deployments.

Own and architect quantcast.com performance, deployments, and data integrity. Lead headless CMS (Builder.io) and GTM strategy, build modular ES6+ JavaScript and Salesforce LWC integrations, maintain CI/CD via GitHub Actions, and act as technical consultant to Marketing and Engineering to ensure reliable analytics, synchronized lead tracking, and faster global marketing deployments.

The Principal Software Engineer - Web is responsible for designing and developing new features for Yahoo Mail, mentoring peers, and enhancing user experience. This role requires strong knowledge of web technologies and collaboration with cross-functional teams to deliver high-quality updates and improvements.

The Senior Web Developer will implement user-facing features, optimize web applications, and build frameworks to enhance development efficiency at CoinMarketCap.

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.

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 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.

The Staff Software Engineer will design and build scalable backend systems, lead projects, and contribute to enterprise software solutions, focusing on application architecture, API development, and ML techniques.

Join as a Mobile/Web App Developer Intern to build responsive cross-platform UI, integrate APIs and cloud services, test and deploy features (dashboards, analytics, notifications), support app store publishing, and collaborate in an agile, remote dev team under mentorship.

The Junior Software Developer will develop and maintain web and mobile applications, troubleshoot issues, write clean code, and collaborate with senior engineers.

The Senior Software Engineer will design and build a collaborative web platform, managing backend and frontend systems, mentoring junior engineers, and driving architectural decisions. Responsibilities include API design, code quality assurance, and integrating AI into the development workflow.

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.

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.

The Principal Software Engineer will lead the integration of AI with a focus on developing data orchestration solutions, modernizing legacy systems, and enhancing web infrastructure for optimal performance.

As a Contract Senior Web Services Engineer, you will design APIs, implement databases, and develop solutions while collaborating with cross-functional teams to solve complex technical problems.

The QA Engineer will ensure quality across web and frontend experiences, build automated test coverage, and improve release confidence through collaboration.

The Staff Software Engineer will lead the architecture and development of a real-time content platform, working on both backend and frontend systems while mentoring team members and collaborating with product and design teams.