Trading212 - Senior Frontend Engineer (Kotlin) - Frontend Core
Requirements
• At least 4 years of professional experience in frontend or mobile engineering, with a meaningful portion spent on platform, infrastructure, or developer tooling work • Production-grade TypeScript - strong typing discipline, not just familiarity • Hands-on React Native experience in a production app, including an understanding of the native layer • Practical Kotlin experience on Android - native modules, build configuration, or Android-side CI/CD work • Direct involvement in CI/CD pipeline ownership or significant contribution — mobile or frontend, any tooling • Ability to think in systems and write code for other engineers, not just end users • Comfortable working autonomously and making decisions without waiting for full consensus • Hands-on experience with nx or pnpm workspaces specifically • Familiarity with Vite and Expo for tooling or build configuration • Exposure to Reanimated or React Native Gesture Handler • Background in fintech or a high-scale consumer app where release reliability was business-critical
Responsibilities
• Own and evolve our monorepo, ensuring it stays healthy, performant, and easy to work in as the codebase grows • Design, build, and maintain CI/CD pipelines for React Native and web targets, driving reliability and fast feedback loops for the engineering team • Author and maintain shared TypeScript libraries — state management patterns, networking layers, error handling utilities — consumed across all frontend products • Own the mobile release process end-to-end, including Android build configuration, versioning, and deployment automation • Integrate and maintain observability tooling (Sentry, Amplitude) at the platform level, so product teams get reliable instrumentation out of the box • Identify and resolve build bottlenecks, dependency issues, and tooling gaps that slow down engineering velocity • Collaborate closely with product frontend teams to understand their pain points and translate them into platform improvements
Benefits
• Challenges that will help you grow and realise your potential • Opportunity to make a big Impact - you will build innovative services used by millions of investors to build wealth • Work with smart, spirited, helpful, high-performing colleagues with a common goal • An environment where nothing is set in stone • Appreciation for your talent and ideas • Generous remuneration package including annual bonuses • Excellent social benefits package, including private health insurance, sports card and 25 days of paid vacation per year • Delicious treats and a spacious game room • Are you ready to accelerate your career with us? We'd love to hear from you! • We process applicant data confidentially and in accordance with applicable data protection laws. We may use AI-powered tools to help review applications, but all hiring decisions are made by our human recruitment team. Where required by law, we rely on your consent to use these tools. • You may withdraw this consent or exercise your data protection rights at any time by contacting us.
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