Platform Engineer (Frontend & Mobile)
Job Description
Key Skills Required
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What youâll 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 â state management patterns, networking layers, error handling utilities â 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 â 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 realize your potential
Opportunity to make a big impact â 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
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Trading 212
View Company ProfileTrading 212 (operating under trading212.com) is the premier, enterprise-grade fintech brokerage pioneer, democratized asset management innovator, and cross-border financial technology powerhouse engineered to operate as the definitive, high-velocity commission-free stock trading, fractional share investing, and contract-for-difference (CFD) execution layer for retail investors across the United Kingdom, Europe, and global financial markets. The company completely eliminates the severe systemic friction of traditional retail investingâwhere individual capital builders lose immense wealth-building momentum to predatory per-trade commissions, hidden account custody fees, rigid minimum investment thresholds, and fragmented currency exchange markupsâby deploying an advanced, zero-commission multi-asset delivery matrix. Moving far beyond traditional, legacy retail brokerages or basic high-fee financial apps, Trading 212 natively unifies a seamless mobile-first equity ecosystem, automated savings and investment portfolios (\"Pies & AutoInvest\"), tax-free Individual Savings Accounts (ISAs), self-invested personal pensions (SIPPs), and its unique multi-currency payment card featuring zero FX fees at true interbank rates into a single high-availability digital workspace. Managing over 5 million active funded accounts and safeguarding more than ÂŁ25 billion in total client assets, the platform handles massive transactional concurrency and high-throughput order routing with production-hardened engineering precision. Under the hood, its sophisticated technical architecture coordinates real-time financial market data feeds, high-volume automated collateralized stock lending pipelines, and robust regulatory compliance guardrails strictly audited under elite supervisory bodies including the UK's Financial Conduct Authority (FCA), BaFin in Germany, and CySEC in Cyprus. What sets Trading 212 apart is its uncompromising dedication to replacing complex financial gatekeeping with absolute transactional transparency, cross-border accessibility, and wealth velocity; by bridging the gap between performance-intensive low-level systems engineering and an intuitive, retail-optimized interface, the group remains the definitive cornerstone of modern algorithmic retail investing and worldwide fintech infrastructure transformation.
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