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Open nowPosted 6 days ago

Senior Frontend Engineer (Kotlin) - Frontend Core

trading21266 open roles

Where
Berlin
Work mode
Remote
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Your applicationOpen nowSenior Frontend Engineer (Kotlin) - Frontend Coretrading212 · Berlin

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  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

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The clock on this job

Early applications get read.

7.8% of postings close within 7 days. Measured by our own scanner across the market. trading212 postings stay open a median of 4 days.

Share of postings closed within
  1. 1.7%1 day
  2. 3.5%3 days
  3. 7.8%7 days
  4. 14.6%14 days
  5. 34.0%30 days
This job: posted 6 days ago

trading212 median: 4 days open

The posting

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!

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