---
title: 'Senior Frontend Engineer (Kotlin) - Frontend Core at Trading212'
canonical: 'https://feeny.ai/job/senior-frontend-engineer-kotlin-frontend-core-trading212-berlin-zf4hppja2mnr'
type: 'job'
last_seen: '2026-09-09'
---

# Senior Frontend Engineer (Kotlin) - Frontend Core at Trading212

- **Company:** Trading212
- **Location:** Berlin, Germany
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-09-09
- **Last confirmed live:** 2026-09-09
- **Apply:** https://jobs.ashbyhq.com/trading212/1d717287-1a3a-4591-8d30-2b1ff763d461/application

**Skills:** TypeScript, React Native, Kotlin, Android Development, CI/CD, Monorepo Management, nx, pnpm, Vite, Expo, Reanimated, React Native Gesture Handler

> The Senior Frontend Engineer will own and evolve the monorepo, design CI/CD pipelines for React Native and web targets, and author shared TypeScript libraries. The role involves managing the mobile release process, integrating observability tooling, and collaborating with product teams to improve platform reliabilit...

## Job description

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

Bring your ambition to Europe’s fastest-growing mobile broker!

## About Trading212

## Company Overview
- **One-liner**: Trading 212 is a fintech company that democratises financial markets by offering a commission-free, easy-to-use app for trading stocks, ETFs, forex, commodities, and crypto.
- **Entity Type**: Private (backed by organic growth, no disclosed external funding rounds)
- **Headquarters**: London, UK (with major offices in Limassol, Berlin, Düsseldorf, Sydney, Dublin, Sofia, and Plovdiv)
- **Founded**: 2004 (the company states 2004; some sources reference 2003)
- **Founders**: Not publicly available (the founding team is not named in public sources)

## Core Business
- **Primary Industry**: Fintech – stock brokerage and digital investing
- **Target Customers**: B2C retail investors and traders; also serves sophisticated traders through quant tools
- **Mission/Purpose**: “To enable everyone to build wealth” by making financial markets accessible through advanced technology and zero-commission trading

## Products & Services
- **Trading 212 App**: Mobile and web platform for commission-free trading in stocks, ETFs, forex, commodities, and cryptocurrencies. Supports fractional shares, 24/5 trading, and multi-currency accounts.
- **Trading 212 Invest**: Core investing account with zero commissions on real stocks and ETFs.
- **Trading 212 ISA**: UK tax-efficient Stocks & Shares ISA account.
- **Trading 212 CFD**: Contracts for difference product for leveraged trading on forex, indices, commodities, and crypto (offered through CySEC-regulated entity).
- **Features**: 24/7 customer support, fractional shares, instant deposits/withdrawals, social investing (planned), API access for algorithmic trading.

## Market Standing
- **Valuation / Market Cap**: Not publicly disclosed (private company)
- **Key Metrics**: Over 5 million lifetime funded accounts; €3+ billion in client assets; 650+ employees (global headcount); 17 nationalities represented
- **Notable Investors/Partners**: No external investors publicly listed (company is self-funded through revenue). Regulatory licences: FCA (UK), CySEC (Cyprus), BaFin (Germany), ASIC (Australia), FSC (Bulgaria).
- **Growth Signals**: Client base grew 20x and client assets grew 50x in the past few years; ranked UK’s #1 trading app since 2016 and Germany’s #1 in 2017; Trustpilot score of 4.6 with over 95,000 reviews

## Competitive Advantages
- **Zero-Commission Pioneer**: First broker to offer commission-free stock trading in the UK and Europe, disrupting the traditional brokerage model.
- **User Experience Obsession**: Built from the ground up with software engineering and product design at the core; consistently top-rated app.
- **Regulatory Trust**: Licensed and regulated in multiple jurisdictions (FCA, CySEC, BaFin, ASIC) with segregated client funds and compensation scheme coverage.
- **Client Support**: 24/7 support with average response time of 29 seconds.

## Strategic Focus
- **Global Expansion**: Opening offices in new markets (e.g., Australia, Germany) and scaling engineering/product teams.
- **Technology Innovation**: Investing in quant trading, crypto infrastructure, social investing, data science, and extreme scalability.
- **Product Diversification**: Expanding beyond core trading into social/community features and advanced algorithmic tools.

## Why Work Here
- **Culture**: “Ideas over hierarchy” – critical thinking and challenge are encouraged; “Freedom and ownership” – employees own their work and decisions.
- **Team & Diversity**: 650+ teammates from 17 nationalities; hiring exceptional individuals with a collaborative, flat environment.
- **Work Model**: Hybrid/remote-friendly with offices in London, Berlin, Sofia, Plovdiv, Limassol, Dublin, Sydney, and Düsseldorf.
- **Perks & Benefits** (location-dependent): Premium health insurance, sports & wellness package, regular office massages, catered food and stocked kitchen, epic seasonal team buildings, game room in some offices.
- **Engineering Culture**: Heavy focus on product engineering (Kotlin, React, React Native), data science, and infrastructure; open roles for senior/staff engineers and DevOps.

## Sources
1. [trading212.com](https://www.trading212.com/careers) – Careers page with stats, culture, and open roles
2. [trading212.com](https://www.trading212.com/about-us) – About us page with regulatory details and company description
3. [trading212.com](https://www.trading212.com/press) – Press page with key metrics
4. [builtin.com](https://builtin.com/company/trading-212) – Built In profile with headcount, offices, and recent growth data
5. [trading212.com](https://www.trading212.com/) – Homepage featuring product stats and features

## Other roles at Trading212

- [Senior Risk Manager](https://feeny.ai/job/senior-risk-manager-trading212-london-m07rc6dtehvb) — London, United Kingdom
- [Senior Risk Manager (Financial Risk)](https://feeny.ai/job/senior-risk-manager-financial-risk-trading212-london-e4yd60gz6hjg) — London, United Kingdom
- [Operations Manager](https://feeny.ai/job/operations-manager-trading212-poland-56ejcgvg1q40) — Poland
- [Operations Manager](https://feeny.ai/job/operations-manager-trading212-bulgaria-8rmh44v36xtc) — Bulgaria
- [Operations Manager](https://feeny.ai/job/operations-manager-trading212-romania-qfe9cr6ktv4x) — Romania
- [Operations Manager](https://feeny.ai/job/operations-manager-trading212-spain-ehfygw99fawm) — Spain
- [Senior Product Designer](https://feeny.ai/job/senior-product-designer-trading212-berlin-2r9f051jff0z) — Berlin, Germany
- [Senior Product Designer](https://feeny.ai/job/senior-product-designer-trading212-london-mjetk7njc52t) — London, United Kingdom
- [Senior Quality Assurance Engineer](https://feeny.ai/job/senior-quality-assurance-engineer-trading212-poland-znn5vbvazw1r) — Poland
- [Senior Quality Assurance Engineer](https://feeny.ai/job/senior-quality-assurance-engineer-trading212-berlin-sk18c12wb9mj) — Berlin, Germany