Senior Lead Software Engineer - React Native

September 15, 2026

Office

Senior

London

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Office-only work

Description

Senior Lead Software Engineer for React Native on a greenfield digital banking product being built from scratch. Role involves delivering cloud-native microservices architecture applications, participating in solution design and architecture across the full SDLC. Part of a flat-structure organization with start-up mentality. Responsibilities include mentoring junior developers and collaborating with cross-functional teams.

Responsibilities

Collaborate with cross-functional teams to define, design, and ship new features
Create and maintain clean, efficient, and reusable codebase
Conduct thorough testing to ensure robustness and reliability of applications
Troubleshoot and debug issues, ensuring smooth application functionality
Communicate effectively with stakeholders to gather requirements and provide progress updates
Mentor junior developers, providing guidance on best practices and code reviews
Stay updated with the latest industry trends and best practices in mobile development
Drive continuous improvement initiatives to enhance development processes and workflows

Requirements

Proficiency in React framework
Building applications using React Native / Expo in TypeScript or JavaScript
Strong knowledge of React Native architecture
Understanding of REST APIs and GraphQL
Ability to write testable, clean JavaScript code
Comfortable working with projects partially or fully using TypeScript
Using latest React features such as Suspense and Hooks
End to end testing applications with WebdriverIO / Playwright
Extensive experience in modern mobile development
Hands-on experience with design systems, component libraries, and implementing consistent UI/UX across large-scale applications

React NativeTypeScriptExpobanking / financial servicesKotlinSwiftGraphQL

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