Lead Software Engineer - Frontend Engineering - React Native

Next Frontier Capital; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

J.P. Morgan is seeking a Lead Software Engineer - Front-End Engineer to deliver end-to-end cloud-native microservices solutions. You will participate in design and architecture while owning the SDLC lifecycle and collaborate with cross-functional teams to ship new features.

The role emphasizes clean code, robust testing, and mentoring junior developers in a dynamic, agile environment. Based in London, you’ll stay current with mobile development trends, contribute to improving workflows, and work

Qualifications

• Formal training or certification on JavaScript concepts.
• Strong knowledge of JavaScript, TypeScript, and ES6+.
• Experience writing unit tests and testable code.
• Experience in agile environments with distributed teams.
• Excellent English communication.

Responsibilities

• Collaborate with cross-functional teams to define, design, and ship new features.
• Create and maintain clean, efficient, reusable codebase.
• Conduct thorough testing to ensure robustness of applications.
• Troubleshoot and debug issues for 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.

Skills

JavaScript

TypeScript

ES6+

Unit testing

React

React Native

Agile

English communication

Tools

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.

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

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

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.

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. Carry out critical tech solutions across multiple technical areas as an integral part of an agile team