Senior Software Engineer – SaaS and Payments London (4 days onsite) £80,000 to £100,000 base plus package A high-growth B2B fintech scale-up transforming how complex industries handle payments and financial workflows are growing their engineering team! They’re profitable, well-funded, and engineering-led, and as their newest Engineer you’ll shape their core platform and take ownership of critical features. This is a hands-on senior role where you can influence the technical direction, own features and build software that has a real impact. As a software engineer you will: Build and scale end-to-end features across the full stack using .NET and React Work with SQL and NoSQL databases to deliver robust, high-performance solutions Design, maintain and optimise cloud-based services on AWS, GCP or Azure Implement and improve CI/CD pipelines, testing and version control practices Solve complex technical problems and deliver simple, user-friendly solutions Collaborate closely with product managers, designers and engineers to ship high-quality software Bring your experience in SaaS and payments to influence product and architecture decisions We are looking for someone with: A minimum of 5 software engineering experience, ideally including startup or scale-up environments Hands-on experience across full-stack development using .NET and modern JavaScript frameworks Hands-on experience with cloud platforms (Azure, AWS or GCP) Strong knowledge of cloud platforms, APIs, web technologies and database design A proactive, ownership-driven mindset and a track record of driving projects end-to-end Excellent problem-solving skills and the ability to work effectively in a collaborative team The package: £80,000 - £100,000 base Equity Pension To hear more about the Senior Software Engineer opportunity, get in touch with Connor Smyth at Anson McCade on 020 7780 6706 and apply below.