Lead Software Engineer - Frontend Engineering - React Native

JPMorgan Chase & Co.; Greater London; On-site; GBP 90,000 - 140,000; Full time

Job summary

JPMorgan Chase & Co. is seeking a Lead Software Engineer - Front-End Engineer to drive end-to-end cloud-native front-end solutions within the International Consumer Bank.

You will contribute to design, architecture, and SDLC across a distributed team of engineers, focusing on scalable, secure, and high-quality web and mobile experiences. Ideal candidates bring strong JavaScript/TypeScript skills, hands-on React/React Native experience, and a proactive approach to mentorship, testing, and

Qualifications

• Experience with JavaScript, TypeScript and ES6+ syntax.

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 latest industry trends and best practices in mobile development.
• Drive continuous improvement initiatives to enhance development processes and workflows.
• Adopt AI-assisted engineering practices to improve code quality, delivery speed, and operational outcomes.

Skills

JavaScript concepts

TypeScript

ES6+ syntax

Writing testable code

Unit tests

Agile environment

English communication

AI-assisted tools

Responsible AI in engineering

Tools

React

React Native

REST APIs

GraphQL

Detox

Appium

WebdriverIO

Playwright

Job description

We know that people want great value combined with an excellent experience from a bank they can trust, so we launched our digital bank, Chase UK, to revolutionize mobile banking with seamless journeys that our customers love. We're already trusted by millions in the US and we're quickly catching up in the UK – but how we do things here is a little different. We're building the bank of the future from scratch, channeling our start-up mentality every step of the way – meaning you'll have the opportunity to make a real impact.

As a Lead Software Engineer - Front-End Engineer at JPMorgan Chase within the International Consumer Bank, you will be a part of a flat-structure organization. Your responsibilities are to deliver end-to-end cutting-edge solutions in the form of cloud-native microservices architecture applications leveraging the latest technologies and the best industry practices. You are expected to be involved in the design and architecture of the solutions while also focusing on the entire SDLC lifecycle stages.

Job 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
• Drives team adoption of enterprise-authorized AI-assisted engineering practices within the work environment to improve code quality, delivery speed, and operational outcomes (e.g., AI-assisted code review/refactoring, test strategy acceleration, incident/root-cause analysis support), while establishing consistent validation standards (secure coding, peer review, automated testing) and promoting reuse of effective patterns across the team.
• Applies 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.
  

Required qualifications, capabilities and skills

• 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 (e.g., for coding, code review, test acceleration, troubleshooting) 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

Preferred qualifications, capabilities and skills

• Proficiency in React framework &
• Building applications usingReact Nativein TypeScript or JavaScript
• Native application development across Android / iOS inKotlin/Swift
• Understanding of REST APIsand GraphQL
• Comfortable working with projects partially or fully usingTypeScript
• End to end testing applications withDetox/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

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