Senior React Native Engineer | AI-Driven FinTech| 1-2 Days Hyrbid, London | Up to £125,000+ Equ[…]

Company: Owen Thomas | B Corp™
Apply for the Senior React Native Engineer | AI-Driven FinTech| 1-2 Days Hyrbid, London | Up to £125,000+ Equ[…]
Location: London
Job Description:

Senior React Native Engineer | AI-Driven FinTech | 1-2 Days Hyrbid, London | Up to £125,000+ Equity & Benefits

About the company:

We are working with a highly successful, fast-scaling FinTech platform that is fundamentally transforming data infrastructure and workflow automation across global financial markets.

They have proven product-market fit, their AI-powered platform is already trusted by over 300+ companies worldwide, including global banks, private equity firms, and asset managers.

The business is at a defining global inflection point and is accelerating its expansion into entirely new market verticals. To spearhead this next chapter of hyper-growth, they are investing heavily in their technical leadership layer, creating a high-impact engineering environment designed for top-tier talent.

They have established an elite culture that balances deep technical strategy with pragmatism, replacing fragmented workflows with highly sophisticated, scalable data platforms and services.

About The Role –

You will be joining as a hands-on senior engineer, taking ownership of the technical vision and system design for a major expanding mobile engineering division. They value engineers who move seamlessly between deep-dive debugging and high-level system architecture, to building beautiful UI and mobile applications.

Beyond driving Mobile Development, you will be working in cross-functional squads, collaborating with design and backend engineering to build out and add new features to the mobile application. This is a high-visibility role where you will set the engineering standards, you will also leverage AI-assisted engineering tools to accelerate system delivery.

Requirements For The Role

  • Own mobile initiatives from initial problem scoping and design through to launch and ongoing optimisation.
  • Build and ship seamless mobile experiences that boost user engagement and encourage positive habits.
  • Champion the performance, scalability, and stability of our mobile apps in production.
  • Produce clean, testable, and maintainable TypeScript code using React Native or React.
  • Guide our mobile architecture to handle rapid product growth and a scaling engineering team.
  • Use analytics, feature flags, and monitoring tools to track performance and drive data-backed improvements.
  • Balance rapid product delivery with architectural robustness, making smart technical compromises when needed.
  • Work closely with product, design, and peer engineering teams to influence the broader roadmap.

What Can They Offer You

  • Salary of up to £125,000
  • Pension scheme up to 7%
  • Private medical
  • 1-2 days per week in the office and work abroad for up to 3 months per year

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Posted: July 27th, 2026