> Markdown version of [/jobs/ext/3656999-senior-frontend-engineer](https://www.wearedevelopers.com/jobs/ext/3656999-senior-frontend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Frontend Engineer - **Company:** BrickRed Systems - **Location:** Mercer Island, WA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), HTML5, Browser Compatibility, Cascading Style Sheets (CSS), Cloud Computing, Code Review, Continuous Integration, Software Debugging, Package Management Systems, Performance Tuning, Responsive Web Design, Systems Integration, TypeScript, Web Applications, Web Performance Optimization, Tailwind, ReactJS, Cypress (Programming Language), Technical Debt, Backend, Gitlab, Git, Integration Tests, Kubernetes, Build Tools, Graphql, Front End Software Development, React Redux, React Testing Library, Restful APIs, Es2015, Device Compatibility, Docker - **Published:** October 9, 2026 - **Apply:** https://www.disabledperson.com/jobs/75936698-senior-frontend-engineer ## About the Role * 7+ years of professional frontend development experience. * 3+ years of hands-on React.js experience. * Expert-level proficiency in JavaScript (ES6+) and strong knowledge of TypeScript. * Deep understanding of React concepts including Hooks, Context API, lifecycle, memoization, code splitting, and lazy loading. * Strong experience with Redux or other state management solutions such as Zustand, Recoil, or React Query. * Strong knowledge of HTML5 and CSS3 and modern styling approaches such as Tailwind, SCSS, CSS-in-JS, or styled-components. * Hands-on experience integrating RESTful APIs; GraphQL experience is a plus. * Experience with testing frameworks such as Jest, React Testing Library, or Cypress. * Solid understanding of frontend build tools, package managers, and CI/CD. * Experience with Git/GitLab and collaborative development workflows. * Strong understanding of responsive design and cross-browser compatibility. * Excellent debugging, problem-solving, and performance optimization skills. Preferred Qualifications * Experience building large-scale enterprise web applications. * Experience with modern frontend architecture and reusable design systems. * Knowledge of GraphQL and API integration patterns. * Experience with cloud-based deployment environments. * Familiarity with Docker, Kubernetes, or cloud platforms. * Experience working in Agile/Scrum development environments. * Strong understanding of frontend security and accessibility best practices. ## Description We are looking for a Senior Frontend Engineer with strong hands-on expertise in React.js, JavaScript/TypeScript, Redux, and RESTful APIs to design and develop scalable, high-performance web applications. The ideal candidate should have experience building production-grade React applications, architecting reusable components, implementing state management solutions, optimizing frontend performance, and working closely with product, UX/UI, and backend teams., * Design, develop, and maintain high-performance web applications using React.js, JavaScript, and TypeScript. * Architect scalable frontend solutions with strong patterns for component design, state management, and code organization. * Develop reusable and maintainable React components and frontend frameworks. * Collaborate with Product Managers, UX/UI Designers, and Backend Engineers to deliver business requirements. * Lead code reviews and promote coding standards and frontend engineering best practices. * Optimize applications for speed, scalability, responsiveness, and cross-browser/device compatibility. * Integrate RESTful APIs and backend services into frontend applications. * Own frontend build tooling, CI/CD integration, and deployment processes. * Write clean, maintainable, and well-tested code with strong unit and integration test coverage. * Troubleshoot and resolve performance bottlenecks, bugs, and technical debt. * Stay current with modern frontend technologies and evaluate their adoption for the team.