React Developer

October 17, 2026

Junior

London

Indeed

Description

A full-time front-end role focused on designing, developing and maintaining complex web applications with TypeScript, React and Redux. The position covers building responsive, scalable and high-performance interfaces for real-time, low-latency data interactions, including integrating APIs and WebSocket-based communication. The role also involves mentoring junior team members and collaborating with cross-functional product and QA teams.

Responsibilities

Design, develop and maintain complex web applications using TypeScript, React and Redux
Build responsive, scalable and high-performance user interfaces that handle real-time data and low-latency interactions
Collaborate with backend developers to integrate APIs and WebSocket-based communication for real-time data updates
Work with cross-functional teams including product owners, product analysts, UI/UX designers and QAs to deliver features
Optimise applications for maximum speed, scalability and performance
Stay updated with the latest frontend technologies, tools and industry trends and apply them where appropriate
Mentor junior team members with delegated tasks, review their code and provide guidance

Requirements

5+ years of experience in web application development
Proficient in TypeScript, React and Redux for building dynamic and complex user interfaces
Strong experience with real-time applications or low-latency systems, ideally within the game industry
In-depth experience working with WebSockets and protobuf
Understanding of frontend performance optimisation, especially in real-time data environments
Strong knowledge of HTML5, CSS3, Node.js, and JavaScript frameworks
Strong problem solving and analytical skills
Good communication skills with various stakeholders
Knowledge of using GitLab / GitHub for version control would be an added advantage
Knowledge of EGRET would be an added advantage