Full Stack Engineer

Our client is a well-established financial technology firm operating in fast-moving global markets, growing out its engineering team in London. They build their own trading and client-facing tools in-house, and this role sits at the centre of that effort — spanning both the systems behind the product and the experience people actually interact with.

You'd be joining a small, senior engineering group with genuine end-to-end ownership. Rather than working on one narrow slice of a mature product, you'd help shape how a platform is built and evolves, working closely with people across product, design, and the wider business.

What you'll do

• Build and own features across the full stack, from backend services through to the interface on top
• Design and implement APIs and data services in a modern backend language
• Build modern, performant web interfaces that consume those services
• Take features from concept through to production with real ownership
• Work closely with product, design, and engineering to shape how the platform evolves
• Contribute to infrastructure and architecture decisions as the product scales

What you'll bring

• Several years of professional experience across both backend and frontend development
• Strong backend fundamentals, with Go and/or Python preferred
• Comfortable with cloud infrastructure, containers, and CI/CD
• Solid grasp of databases, caching, and query performance
• Awareness of secure coding practices and common web vulnerabilities
• Experience with financial services or another regulated industry is useful, not essential

What's on offer

• Fast-paced, low-bureaucracy environment with real ownership from early on
• Competitive, performance-linked pay and strong benefits
• The chance to help shape a product from the ground up