Avanti is working with an exciting early-stage 5-person FinTech startup based in London that is about to launch its first product in the embedded finance space.Their platform helps businesses unlock working capital through intelligent, AI-driven invoice financing solutions, integrated directly into existing financial workflows.With their launch just around the corner, they are now looking for a Mid-Level FullStack Developer to join their growing team. THE ROLEThis is not a typical developer role. You''ll be working across both technology and business operations, giving you a unique opportunity to understand how a fintech company is built from the ground up. Around 70-80% of your time will be focused on development, with the other 20-30% focused on working closely with the COO to understand the operational side of the business. You''ll be responsible for:Building and maintaining fullstack applications Developing APIs and working with databases Contributing to frontend and backend development Supporting AI-driven features and data workflows Debugging, testing, and improving system performance Working closely with the business to help automate operational processes TECH STACK.NET (backend) React (frontend) MySQL AWS Python (AI and data models) Experience Required3+ years of experience in software development Strong .NET experience Some front-end (React ideally) - however Angular/Vue is fine Good understanding of software engineering fundamentals Interested in working in a ..... full job details .....