Senior Frontend Engineer
Job Description
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About the role
Senior Frontend Engineers work across our product domains. Your team match will reflect your strengths, interests and where you can contribute most.
Across every team, the model is the same: small, autonomous groups, a weekly release cycle and ownership from problem definition through production.
What you’ll do
- Own complex frontend features end to end across web and mobile.
- Design and evolve React and React Native systems, shared libraries and durable abstractions.
- Identify and resolve rendering, state-management, bundle and runtime-performance bottlenecks.
- Use TypeScript to make behaviour explicit and prevent defects rather than suppressing type errors.
- Work closely with product, backend engineering and QA to turn complex requirements into simple user experiences.
- Keep quality high through code review, unit, end-to-end and visual-regression testing.
- Share knowledge, mentor colleagues and raise the frontend engineering standard.
What you need to have
- 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.
- A 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 the ability to explain technical decisions and trade-offs.
- Strong engineering fundamentals, product judgement and confidence learning unfamiliar technologies.
Depth in one frontend ecosystem and sound tool choice matter more than familiarity with every technology listed.
What to expect
- Recruiter conversation
- Code Review
- Experience Deep Dive
- Managerial interview
Your recruiter will explain each stage clearly and follow up after every conversation.
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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 investing—where 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 markups—by 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 £25 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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