Title: Senior Full Stack Developer (React & Node)

Salary: Up to £90,000 D.O.E

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 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 lifecycle, 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