Senior Frontend Engineer (Kotlin) - Frontend Core

Our mission is to enable everyone to build wealth We reinvent how trading and investing work by creating exceptional products people love. Fostering a culture of excellence and high velocity is the key to our success. Today, we serve over 6 million clients, with more than €50 billion in assets under management - a testament to the scale and trust we’ve built in just a few years.   WHAT YOU’LL DO - 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   WHAT YOU NEED TO HAVE - 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   NICE TO HAVE (OPTIONAL) - 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   WHAT WE OFFER - 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 Bring your ambition to Europe’s fastest-growing mobile broker!