Senior Frontend Developer

Frontend Engineer – Real-Time Systems

London | On-site – 5 Days a week

An opportunity to join a high-performing fintech environment building real-time, mission-critical platforms where speed, precision, and usability genuinely matter.

This is a greenfield-focused front-end role offering real ownership and autonomy. You’ll be designing and building modern UI systems used live by expert users operating in fast-moving, high-pressure environments. This is not internal tooling, it’s software that supports live decision-making.

Why apply?

• Ownership – take features end-to-end, from concept through to production
• Greenfield development – rebuilding and evolving core platforms, not maintaining legacy UI
• Real-time data – complex, high-frequency interfaces where performance and clarity are critical
• Fast-paced culture – minimal bureaucracy, quick feedback loops, and high trust
• Direct user collaboration – work closely with end users to iterate quickly and meaningfully
• Visible impact – what you build is relied on daily in live environments

What you’ll be doing

• Building high-performance front-end applications for real-time systems
• Translating complex workflows into intuitive, responsive user experiences
• Collaborating closely with backend engineers and domain experts
• Taking responsibility for code quality, performance, and maintainability
• Helping shape front-end architecture and technical direction

What they’re looking for

• Strong experience with modern front-end development (React, TypeScript preferred)
• A product-driven mindset with a focus on usability and performance
• Comfortable working in high-accountability, fast-moving environments
• Someone who enjoys autonomy, ownership, and solving complex problems
• Experience with real-time or data-intensive systems is a plus

The environment

This is a serious engineering culture that is pragmatic, collaborative, and delivery-focused. Engineers are trusted to make decisions, take ownership, and move quickly without layers of process.

If you’re looking for a front-end role where your work genuinely matters, where you’re trusted to own what you build, and where the pace keeps you sharp then please reach out to apply.