Software Engineer II - Frontend - Pro

Kraken is a mission-focused company rooted in crypto values, aiming to accelerate the global adoption of crypto for financial freedom and inclusion. The Pro team owns Kraken's flagship trading web application, a high-performance, real-time React app serving multiple product surfaces globally. The company operates fully remote with employees in 70+ countries and offers products like Kraken Pro, Desktop, Wallet, and Kraken Futures.

• 4+ years of experience in software development focused on production web applications.
• Deep understanding of JavaScript/TypeScript and strong proficiency with the modern React ecosystem.
• Experience building real-time UIs with WebSockets and Web Workers.
• Strong React and JavaScript performance skills.
• Experience with LLM coding tools (Cursor, Claude, Copilot or similar).
• Hands-on experience with React Query or similar.
• Practical experience with production user monitoring and observability.
• Experience with frontend testing at multiple levels.
• Comfortable with feature flagging and progressive rollouts.
• Familiarity with modern frontend build pipelines and tooling (rsbuild/webpack/SWC, monorepos, TypeScript project references, ESLint, Prettier, Husky).
• Strong understanding of UI/UX best practices and design-system driven development.
• Experience within a large technology organization or fast-growing startup.
• Strong written and verbal communication skills in English.

• Leverage LLMs to accelerate development while producing production-ready code.
• Build agentic flows to automate tasks and improve productivity using LLMs.
• Design, develop, and maintain features in a large, multi-product React web application.
• Own performance end to end: profile, measure, and optimize real-time UI updates.
• Build and evolve the WebSocket and Web Worker layers powering live market data and updates.
• Set standards for high-quality code through reviews, mentorship, and feedback.
• Contribute to technical strategy including architecture, data flow, state management, and component design.
• Safeguard performance improvements with regression-resistant patterns, instrumentation, dashboards, and alerts.
• Own observability for shipped features with Sentry instrumentation, Mixpanel events, structured logs, and alerts.
• Write integration and component tests.
• Drive process improvements in engineering practices, tooling, build pipeline, and AI-assisted workflows.

Applicants may redact or remove information identifying age, date of birth, or educational attendance/graduation dates on their resumes. The company considers qualified applicants with criminal histories consistent with the San Francisco Fair Chance Ordinance. Kraken is an equal opportunity employer and does not tolerate discrimination or harassment based on protected characteristics as outlined by law.