Senior Software Engineer (C#, Azure, Event-Driven Systems) £75,000-£8,000 Bonus Shares | St Albans (Hybrid) A long-established, high-growth technology business is beginning a major architectural rebuild following several acquisitions. They are unifying multiple systems into a single source of truth and preparing to scale their platform significantly over the next five years. They are hiring a Senior Software Engineer to play a key role in designing, building, and delivering the next-generation event-driven platform. You'll help break down a large monolith into a distributed, event-driven system processing several million events per day, scaling further as new markets open. This role is hands-on: building services, solving technical challenges, and contributing to the engineering standards that will define the new platform. Key Responsibilities * Build scalable, resilient, event-driven services using C# and Azure. * Work on distributed systems that support high-throughput, high-availability environments. * Deliver features end-to-end with a focus on performance, reliability, and maintainability. * Collaborate with Engineering Leads, Architects, and Product to refine designs and deliver roadmap goals. * Contribute to the multi-year shift towards microservices and cloud-native architectures. * Participate in design reviews, pair programming, and code quality initiatives. * Support improvements to CI/CD, testing practices, and production reliability. What You Bring * Solid experience building distributed systems or event-driven architectures. * Strong C# and Azure engineering background. * Understanding of microservices, messaging, and modern architectural patterns. * Track record of delivering secure, stable software into production. * Comfort working in a large-scale transformation environment. * Willingness to learn, collaborate, and influence engineering best practice. Why Join This is an opportunity to help rebuild a major platform from the ground up, working with modern cloud tooling and a roadmap that values engineering excellence. You'll make a visible, long-term impact while developing your technical depth alongside experienced engineering leaders. How to Apply Send your CV directly or contact Brent Chambers on 0117 457 8574. Senior Software Engineer (C#, Azure, Event-Driven Systems) £75,000-£80,000 Bonus Shares | St Albans (Hybrid) RSG Plc is acting as an Employment Agency in relation to this vacancy.