Senior Software Engineer – Fullstack / Backend Leaning (TypeScript, Node.js, React, AWS)

Full-time | London (Hybrid)

Our client is a well-funded, high-growth FinTech SaaS business redefining how private equity operates. The platform empowers investment professionals through automation and intelligent collaboration, replacing the manual, fragmented processes that have long dominated the industry. Founded by seasoned private equity and technology experts, the company is entering an exciting scale-up phase with proven product-market fit, strong industry adoption, and a clear multi-product roadmap.

We’re seeking an experienced Senior Software Engineer who thrives in dynamic, scaling environments and enjoys building robust, enterprise-grade SaaS platforms. You’ll help shape architecture, deliver new features end-to-end, and contribute to technical strategy in a lean, high-calibre engineering team.

What You’ll Do

• Design and build scalable backend and fullstack solutions in Node.js, TypeScript, React, AWS
• Collaborate closely on architecture, data models, and API design (REST, GraphQL, tRPC, WebSockets)
• Balance speed with long-term maintainability — quality and performance matter here
• Work on innovative challenges across document parsing, data visualisation, and ML integration

Who You Are

• 5+ years’ experience in high-growth or scale-up SaaS environments
• Deep expertise in Node.js and React; strong TypeScript skills
• Solid understanding of modern DevOps (Docker, AWS, CI/CD, Kubernetes a plus)
• Pragmatic engineer who values collaboration, clean code, and thoughtful design

Join a team where product excellence, autonomy, and technical craftsmanship drive everything.