Senior Frontend Engineer

Stack

Responsibilities

• ▹Own complex frontend features end to end across web and mobile
• ▹Design and evolve React and React Native systems, shared libraries, durable abstractions
• ▹Identify and resolve rendering, state-management, bundle, and runtime-performance bottlenecks
• ▹Use TypeScript to make behaviour explicit and prevent defects
• ▹Work closely with product, backend engineering, and QA
• ▹Keep quality high through code review, unit, end-to-end, and visual-regression testing
• ▹Share knowledge and mentor colleagues

Requirements

• ▹Proven ownership of production frontend systems built with React or React Native and TypeScript
• ▹Strong knowledge of React rendering, component boundaries, data flow, and state management
• ▹Track record of designing maintainable frontend architecture and reusable abstractions
• ▹Practical experience diagnosing performance problems in complex web or mobile products
• ▹Sound testing judgement across unit, end-to-end, and visual-regression coverage
• ▹Clear, structured problem-solving and ability to explain technical decisions
• ▹Strong engineering fundamentals, product judgement, confidence learning new technologies

Soft skills

About the company

Trading 212 is Europe's fastest-growing mobile broker, serving over 6 million clients with more than €38 billion in assets under management.