Lead Software Engineer - Frontend Engineering - React Native

JPMorganChase; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

JPMorgan Chase is building the Chase UK digital bank from scratch, seeking a Lead Software Engineer - Front-End to deliver cloud-native, microservices-based front-end solutions with modern technologies. You will participate in architecture design and oversee the SDLC lifecycle within a flat-structure team.

Role emphasizes mentoring, cross-functional collaboration, and adopting enterprise AI-assisted development practices to improve code quality and delivery speed.

Qualifications

• Formal training or certification on JavaScript concepts.
• 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.
• Excellent written and verbal communication skills in English.
• Experience leading effective use of approved AI-assisted software development tools.
• Strong understanding of responsible AI use in engineering workflows.

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 to improve code quality, delivery speed, and operational outcomes.
• Applies knowledge of tools within the SDLC toolchain to improve value realized by automation.

Skills

JavaScript

TypeScript

ES6+ syntax

Testing (unit tests)

Agile methodology

AI-assisted development tools

English communication

Tools

React

React Native

REST APIs

GraphQL

Detox/Appium/WebdriverIO/Playwright

Job description

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 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

#ICBCareers #ICBEngineering

About Us

J.P. Morgan is a global leader in financial services, providing strategic advice and products to the world's most prominent corporations, governments, wealthy individuals and institutional investors. Our first-class business in a first-class way approach to serving clients drives everything we do. We strive to build trusted, long-term partnerships to help our clients achieve their business objectives.
We recognize that our people are our strength and the diverse talents they bring to our global workforce are directly linked to our success. We are an equal opportunity employer and place a high value on diversity and inclusion at our company. We do not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. We also make reasonable accommodations for applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs. Visit our FAQs for more information about requesting an accommodation.

About The Team

Our professionals in our Corporate Functions cover a diverse range of areas from finance and risk to human resources and marketing. Our corporate teams are an essential part of our company, ensuring that we're setting our businesses, clients, customers and employees up for success.