Top Web Developer Jobs in Seattle, WA

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.

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.

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.

Drive quality assurance for web features from technical handoff through production release. Responsibilities include test planning, test case creation, functional and exploratory testing, regression, UI/UX, cross-browser, responsive, API, and end-to-end testing. Support releases through build validation and monitoring, document and review tests, collaborate with product and engineering teams, improve QA metrics, and optionally contribute to test automation.

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.

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

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

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.

Build and operate large-scale distributed web crawlers that discover, fetch, extract, deduplicate, and recrawl billions of pages. Develop targeted pipelines for audio, video, and multilingual data, transforming web content into training-ready datasets. Create infrastructure and tooling for researchers to request, monitor, evaluate, and explore crawled data, while ensuring reliability, efficiency, compliance, politeness, and rate-limit handling.

Design, develop, test, and maintain full-stack web and middleware/API solutions in an agile team. Diagnose and resolve production issues, apply CI/CD and DevOps practices, produce SDLC artifacts, mentor peers, and collaborate with stakeholders on scalable cloud-native architectures and integrations.

Build and operate accessible, high-performance member-facing web applications using a front-end-first full-stack approach. Contribute to APIs, backend services, data flows, integrations, frontend architecture, testing, observability, and performance improvements. Own projects from concept through production, collaborate with Product, Design, Data, and Clinical teams, improve developer experience, support AI-assisted coding practices, participate in technical reviews and incident follow-up, and mentor engineers.

Serve as the senior software development SME while performing full-stack Java web development and O&M activities. Guide developer teams, prioritize work, coordinate technical meetings, resolve issues, optimize processes, analyze requirements, estimate effort, review code, conduct testing, troubleshoot environments, create technical documentation, and implement software updates. The role requires extensive J2EE experience, SPA development, DevOps and CI/CD expertise, and active Public Trust/MBI clearance supporting an IRS Criminal Investigation system.

Lead technical direction of Ground News web properties to drive subscriber conversion. Own architecture, experimentation infrastructure, migrations (marketing-tech), performance, accessibility, SEO, Core Web Vitals, safe rollout practices, and enable non-engineers to run experiments without engineering support.

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.

Design, build, test, and maintain scalable web applications. Create responsive UIs with Angular or React (TypeScript), implement Python/Flask backends and RESTful APIs, design relational schemas, troubleshoot production issues, perform code reviews, and mentor junior developers.

The Ruby Engineer will focus on web scraping and browser automation, fix code issues promptly, support customers, and enhance search engine integrations.

The Product Engineer II identifies requirements for web services, manages product backlogs, evaluates service usage, and communicates development plans, cooperating with stakeholders and product management.

The Senior Product Engineer will oversee the development of ArcGIS web services, ensuring reliability and scalability while balancing customer needs and product goals.

The role involves leading the development of a high-performance Web SDK for fraud detection and risk management, implementing algorithms for device fingerprinting, and ensuring security and performance optimization.

Design and implement frontend applications using JS, CSS, React, and Flutter. Collaborate on technical specs and contribute to documentation, ensuring user experience and performance.

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 Web Developer is responsible for designing, developing, debugging, and modifying software applications, providing solutions, and supporting documentation.

This role involves developing features for the Backpack Wallet, optimizing performance, and managing projects from start to finish.