Senior Full Stack UI Engineer

JR United Kingdom; Cardiff; Remote; GBP 100,000 - 120,000; Full time

Job summary

A leading firm in the finance sector is seeking a Senior Full Stack UI Developer to build high-performance interfaces and contribute to backend functionality. This fully remote position offers up to £120,000 alongside a strong benefits package, appealing to candidates with extensive experience in React, Next.js, and Java.

Qualifications

• Extensive React/Next.js development in production environments with strong frontend bias.
• Solid Java fundamentals essential.
• Front Office experience and knowledge of trading concepts preferred.

Responsibilities

• Build real-time, high-performance interfaces from the ground up.
• Contribute to backend functionality using Java and integrate complex workflows.

Skills

React

Next.js

Java

UI Development

Real-time communication

Job description

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Senior Full Stack UI Developer – Up to £120,000 - Fully Remote

Salary: Up to £120,000 + Strong Package

Working Arrangements: Fully Remote UK or Office in London for those nearby

I’m working with a top-tier firm building a globaltrading platform, and we’re looking for a Senior Full Stack UI Developer to join their team.

This role is ideal for someone who’s passionate about building real-time, high-performance interfaces and enjoys working closely with backend teams on end-to-end delivery. You’ll be building UIs from the ground up with React, Next.js, and Ag-Grid. You’ll also contribute to backend functionality using Java, integrating complex workflows with real-time data feeds.

? What they’re looking for:

• Extensive React/Next.js development in production environments - Strong Frontend bias
• UI development for complex, data-heavy systems — ideally in trading or finance
• Have solid Java fundamentals
• Front Office experience is essential
• Knowledge of real-time comms
• Familiarity with trading concepts is a big plus

? Why this role?

• High-performance environment

Senior Full Stack UI Developer – Up to £120,000 - Fully Remote