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Senior Frontend Engineer
Millbrae, CAMarch 31st, 2026
Senior Frontend EngineerWe're building a gamified developer platform empowering tens of thousands of coders to compete in exciting software engineering challenges all while pushing the frontier of LLMs!
As a Senior Frontend Engineer, you'll become part of a passionate, fast moving team dedicated to solving challenging technical problems, designing engaging gamification experiences, and shaping the foundations to support the collective effort of developers worldwide.
What You'll DoDesign and implement intuitive, attractive, and engaging user interfaces that captivate developersCollaborate closely with product managers, designers, and backend engineers to build seamless gamified experiences and interactive coding challengesArchitect scalable frontend solutions, ensuring maintainability, performance, and reliability as our platform rapidly growsDrive frontend best practices, code quality, and mentorship within the engineering teamContinuously experiment, iterate, and optimize user experiences based on data-driven insights and user feedbackWhat You Have3+ years of experience building scalable, performant frontend applications using React and TypeScriptStrong proficiency in styling responsive, attractive user interfaces with Tailwind CSSSolid understanding of data fetching, state management, and API integration using GraphQLProven ability to architect maintainable, modular frontend codebases and establish best practicesExperience building and maintaining reusable component libraries and frontend design systemsFamiliarity with frontend testing frameworks and best practices (e.g., Vitest, React Testing Library, MSW)Passion for crafting delightful user experiences and attention to detail in UI/UX designA proactive mindset, iterating quickly based on user feedback and data-driven insightsNice to HavesExperience with Relay for efficient GraphQL data management and client-side cachingFamiliarity with frontend code generation tools and workflows (e.g., Plop)Knowledge of modern CI/CD practices, including automated testing, linting, and deployment pipelinesInterest in developer tooling and improving engineering productivity
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