Top Web Developer Jobs in Seattle, WA

Design, develop, and maintain backend services for the Leap quantum-classical hybrid cloud platform. Collaborate with product owners and architects across the SDLC to deliver features, troubleshoot and tune production systems, write clean maintainable code, participate in code reviews and on-call rotation, and mentor junior engineers to improve engineering practices and platform scalability.

Design, build, and maintain responsive, accessible websites and web applications. Customize WordPress themes and plugins, implement UI/UX designs, optimize performance and security, debug issues, document systems, and collaborate with marketing, product, and provider teams.

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.

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

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.

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.

Lead implementation of the marketing website in Webflow and code, translating Figma into semantic, accessible, performant pages and reusable components. Build Web Components and vanilla JS modules, optimize Core Web Vitals, ensure accessibility (WCAG), contribute to Next.js apps, QA experiments, and establish front-end standards and patterns.

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.

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.

Design, build, and maintain customer-facing ecommerce features using C#, React, and SQL. Ensure performance, scalability, and reliability, participate in architecture and code reviews, mentor engineers, troubleshoot production issues, and join on-call rotations.

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.

Own architecture, development, and reliability of ecommerce web applications (Symfony storefront and Laravel back-office). Lead front-end JavaScript/CSS direction, optimize SQL schemas/queries, improve observability and incident response, reduce legacy technical debt, establish AI-assisted development workflows, mentor engineers, and drive end-to-end delivery of scalable customer-facing features.

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 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.

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

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

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

Build front-end features for Backpack Exchange, optimize performance, and manage projects from start to finish with a focus on React.

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.

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 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.