Staff Full-Stack Engineer (Frontend Focus)

About Us We're building the next generation of urban mobility in Southeast Asia. Our car sharing platform connects drivers with vehicles seamlessly through mobile apps, driver dashboards, and admin portals. We're a lean, fast-moving engineering team that ships features millions of people rely on daily. The Role As our Staff Full-Stack Engineer (Frontend Focus), you'll architect and build the web platform that powers drivers, operations teams, and admin functions. You'll own the frontend architecture using React while understanding and designing APIs that your backend team builds. This is a rare hybrid role: deep frontend expertise with enough backend knowledge to make smart architectural decisions across the full stack. You're not just a React developer — you're an engineer who thinks about data flow, API contracts, real-time systems, and scalability. You'll set technical standards for how frontend and backend work together. This is 60-70% hands-on React code, 20-30% backend integration work, and 10% mentorship. This is not a management role. What You'll Own • Develop, test, and maintain frontend applications using React (v18 or newer) and TypeScript. • Translate business and functional requirements into efficient technical solutions • Develop reusable components and state management solutions • Design APIs with backend team for efficient frontend consumption • Optimize app performance for maximum speed and scalability • Lead code reviews and set testing standards (unit/integration/E2E) • Implement JWT/OAuth flows and handle sensitive data • Add observability: monitoring, logging, production debugging • Evaluate frontend tools/libraries for team productivity What You Bring • 8+ years software engineering; 4+ years shipping multiple production React apps • React mastery: hooks, state management, routing, context • Proficiency in TypeScript, modern JavaScript (ES6+), and CSS. • Experience with API design/integration: REST/GraphQL, pagination, caching • Experience with performance profiling: Chrome DevTools, Lighthouse, React DevTools • Experience with testing frameworks: Vitest/Jest, React Testing Library, Cypress E2E • Experience with using feature flags for safe rollouts and A/B testing • Good knowledge of CI/CD deployment and backend development • Experience with full-stack delivery from UI mockup to deployment ownership • Strong problem-solving, systems thinking and analytical skills • Clear communicator: explains trade-offs, writes enduring docs Nice-to-Have • Ride-sharing, delivery, or real-time mapping app experience • Google Maps API or Mapbox integration • Stripe / payment gateway integration • Open source contributions (especially React ecosystem) Why You'll Love Working With Us • Zero bureaucracy: make technical decisions fast, ship weekly • Build from scratch and shape mobile platform standards from Day 1 • Real impact: your code powers thousands of daily trips • 50-70% hands-on coding; lead through technical excellence • Lean team of strong engineers; high-trust collaboration • Competitive salary • Flexible work; professional development • Direct product influence