Frontend Engineer (React Native)

Frontend Engineer (React Native)

IG is a FTSE100 fintech operating across five continents, providing a leading retail trading and investment platform. The company delivers a fully licensed, FCA‑regulated crypto trading platform and operates on a scalable cloud‑native AWS architecture.

Team

Join IG UK’s Crypto Product Engineering team, the core group responsible for building the company’s top strategic priority – a market‑leading crypto trading platform.

Responsibilities

• Lead the development of complex ReactNative features for trading platforms across mobile and web, ensuring optimal performance and user experience.
• Architect and implement scalable cross‑platform solutions that handle real‑time financial data streams and high‑frequency trading operations.
• Collaborate with backend engineers, designers and product managers to deliver features that drive business growth and champion the client.
• Participate in the full product lifecycle – from requirements discussions to seeing customers using your software in production.
• Mentor junior developers and contribute to technical decision‑making that shapes mobile and web development standards.
• Own end‑to‑end delivery of features, taking accountability for performance, reliability and user experience across all platforms.
• Drive cross‑platform innovation, implementing cutting‑edge technologies to stay ahead in the fintech landscape.
• Leverage AI‑assisted development tools to accelerate delivery, improve code quality and stay at the cutting edge of modern engineering practices.
• Think strategically about frontend architecture – challenge the status quo, propose improvements and help shape the technical direction of our mobile and web platforms.

Qualifications & Requirements

• Extensive experience in ReactNative development with a proven track record of delivering production mobile and/or web applications.
• Strong expertise in JavaScript/TypeScript, React hooks, Redux/Context API and cross‑platform development best practices.
• Experience with native mobile development (iOS/Android) and the ability to write custom native modules when required.
• Solid understanding of React performance optimisation, including memory management, rendering optimisation and efficient API integration.
• Experience with real‑time data handling, WebSocket connections and high‑frequency data updates.
• Knowledge of CI/CD pipelines, automated testing frameworks and deployment processes.
• Experience with AI‑assisted development tools – engineers are expected to view AI as a force multiplier, not a replacement.
• Strong English language communication skills and the ability to work effectively in globally distributed, cross‑functional teams.
• A keen interest in ongoing learning, both business and technical – a deep understanding of IG’s trading products and financial markets is a plus.
• Excellent problem‑solving skills with a quality‑first, ownership mindset.

Preferred Skills

• Familiarity with financial services or trading platforms.

Location & Working Model

This is a hybrid position: three days onsite in the office and two days remote.

Benefits

• Competitive salary and a flexible benefits package (12% on top of base).
• Private medical cover for you and your family.
• Life insurance and gym membership contributions.
• 25 days holiday, with an additional birthday day and two days for voluntary work (28 days total).
• Option to buy or sell holiday days.
• Unlimited LinkedIn Learning access.
• Comprehensive global and local onboarding and clear career progression pathways.
• Employee‑led diversity, equity and inclusion networks and ESG initiatives.
• Enhanced parental leave and pay options.

Equal Opportunity

IG Group is an equal opportunity employer and celebrates diversity in all its forms.

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