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 5 million clients, with more than €30 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

Are you ready to accelerate your career with us? We'd love to hear from you!

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