Senior Fullstack Engineer

London

Title: Senior Full Stack Developer

Salary: Up to £120,000 Plus bonus!

Location: London (Hybrid)

iO Associates is working with a global FinTech powerhouse that's leading the charge in delivering high-performance electronic trading platforms for institutional clients - and they're now looking for a Senior Full Stack Developer with Trading experience to join their growing engineering team!

This is a fantastic opportunity to take ownership of a cutting-edge trading product and play a key role in building scalable, client-facing solutions using modern JavaScript technologies.

What you'll be doing:

Designing and developing robust full stack applications using React.js (v16+) and Node.js

Working directly with proprietary trading engines to create high-performance tools

Building white-label trading platforms tailored to client needs

Collaborating with global trading and research teams to deliver innovative features

Contributing across the full software life cycle, from design to production support

What you'll get:

Competitive salary plus bonus scheme

Flexible working hours

25 days holiday plus bank holidays

Learning and development opportunities

And more!

This is a career-defining role where you'll have real influence over the architecture, performance, and evolution of a world-class trading solution. If you thrive in a fast-paced, high-impact environment - this one's for you.

If you're interested in this role or know someone who would be, then please apply to this advert and email a. methula@ ioassociates.co. uk

Posted 2025-06-06

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