Senior Product Engineer

New UK Engineering Team 🇬🇧 | Senior Product Engineer | Series A FinTech | £90k–£130k We’re looking for 5x Senior Product Engineers to join a fast-growing European fintech as they build out their engineering team in London for the first time. Founded in 2023, they’re building institutional-grade cash management infrastructure, giving businesses the ability to put idle cash to work through an app or API. They already serve thousands of organisations across Europe and process hundreds of millions of euros every month, with ambitions to become a category leader in a market worth trillions. They’re backed by one of Europe’s leading VC funds alongside several of the biggest operators in European fintech, including senior figures behind some of the continent’s most successful fintech businesses. What you'll be working on Building and owning customer-facing products end-to-endDesigning APIs that allow third parties to distribute financial productsBuilding integrations across KYC, fund administration, banking and AMLWorking in a small, high-ownership engineering team with genuine influence over product and technical decisionsBuilding infrastructure handling significant financial flows within a heavily regulated environment What they're looking for 5+ years of strong full-stack/product engineering experienceStrong TypeScript experience across frontend and backendHigh ownership and genuine interest in the what and why, not just the howCurious engineers who enjoy learning and solving difficult problemsFintech, capital markets or regulated-industry experience is useful, but not essential Extras ⚛️ TypeScript, React, Effect.ts, NX, Tailwind, AWS, Kubernetes, Docker, Terraform 📍 Marylebone, London – 3 days onsite 💰 £90,000–£130,000 + equity Interested? Drop me an email on thomas@wave-group.io with your CV. Don’t worry if it’s not updated, we can work on that further down the line! *No Sponsorship*