Lead Software Engineer Frontend Engineering React Native

Salary: £62,000 - 102,000 per year

Requirements:

• Formal training or certification on JavaScript concepts and proficient advanced experience
• Strong knowledge of JavaScript, TypeScript, and ES6+ syntax
• Ability to write testable, clean JavaScript code
• Familiarity with writing unit tests
• Ability to work in a dynamic, agile environment within a geographically distributed team
• Ability to focus on promptly addressing customer needs
• Excellent written and verbal communication skills in English
• Demonstrated experience leading effective use of approved AI-assisted software development tools, with the ability to set team expectations for validating AI outputs for correctness, performance, and security
• Strong understanding of responsible AI use in engineering workflows, including data sensitivity considerations, secure handling of inputs/outputs, and adherence to resiliency and security expectations; experience coaching engineers on safe, compliant adoption within delivery practices
• Proficiency in React framework and building applications using React Native in TypeScript or JavaScript
• Native application development across Android / iOS in Kotlin / Swift
• Understanding of REST APIs and GraphQL
• Comfortable working with projects partially or fully using TypeScript
• End to end testing applications with Detox / Appium / WebdriverIO / Playwright
• Extensive experience in modern web development, including responsive design and performance optimization
• Hands-on experience with design systems, component libraries, and implementing consistent UI/UX across large-scale applications

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
• Drive team adoption of enterprise-authorized AI-assisted engineering practices within the work environment to improve code quality, delivery speed, and operational outcomes
• Apply knowledge of tools within the Software Development Life Cycle toolchain, including enterprise-authorized AI-assisted development and automation capabilities, to improve the value realized by automation

Technologies:

• AI
• Appium
• Android
• ES6
• GraphQL
• Support
• JavaScript
• Kotlin
• Mobile
• Playwright
• REST
• React
• React Native
• Security
• Swift
• TypeScript
• Web
• iOS
• UX UI Design
• Cloud
• Marketing
• microservices
• Frontend

More:

We are building Chase UK, our digital bank designed to revolutionize mobile banking with seamless journeys that our customers love. We are part of JPMorgan Chase and the International Consumer Bank, operating with a start-up mentality and a flat-structure organization so you can make a real impact. We offer the opportunity to help build the bank of the future from scratch while contributing to a trusted global financial services business. We are an equal opportunity employer and value diversity and inclusion across our global workforce. Our teams support a wide range of functions, and our corporate teams help set our businesses, clients, customers, and employees up for success. This is a full-time role.

last updated 36 week of 2026