Junior Front-End (React) Engineer

Jobster; Greater London; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A fintech start-up in London is seeking a Junior JavaScript Engineer to join their team. This role offers the opportunity to work on scalable and reliable front-office trading platforms in a collaborative environment alongside experienced engineers. Candidates should have 1-4 years of experience with JavaScript and modern frameworks like React. The position is hybrid, with options for fully remote work. This is an excellent opportunity to grow your career in a high-impact fintech space.

Qualifications

• 1–4 years’ experience working with JavaScript.
• Experience with modern JavaScript frameworks like React or React Native.
• Solid understanding of front-end fundamentals.

Responsibilities

• Build and improve scalable, reliable front-office trading platforms.
• Gain exposure to real-world systems in fast-moving financial markets.

Skills

JavaScript

React

React Native

Front-end fundamentals

Communication skills

Collaborative mindset

Job description

Title – Junior JavaScript Engineer

Client – Fintech Start-Up (Trading)

Rate - Up to £100,000 + Bonus

Location – London

My client is a rapidly scaling fintech start-up looking for a Junior Front End Engineer (1–4 years’ experience) to join their growing team of talented software engineers.

This is a fantastic opportunity to work alongside experienced technologists from top tech companies and trading firms, contributing to modern, high-performance software used across the FX and Crypto trading space. You’ll be involved in building and improving scalable, reliable front-office trading platforms, gaining exposure to real-world systems used in fast-moving financial markets.

The team values curiosity, strong fundamentals, and a willingness to learn. You’ll be supported by senior engineers and given the chance to develop your skills while working on technology that receives significant real-world exposure.

The team is primarily based in London and works on a hybrid basis, though fully remote options are available for the right candidate.

Requirements

• 1–4 years’ experience working with JavaScript
• Experience with modern JavaScript frameworks such as React or React Native
• Solid understanding of front-end fundamentals (component design, state management, performance)
• Some exposure to a back-end language (e.g. C#, Java, Python, or C++) is beneficial but not required to be an expert
• Strong communication skills and a collaborative mindset

If you’re a front-end engineer looking to grow your skills in a high-impact fintech environment, this could be a great next step.

If this sounds like you, please don’t hesitate to apply for more details!