Lead Frontend Engineer - React Native Expert

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

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