Senior Developer/Architect

Senior Developer/Architect (.NET/React/React Native/Azure ) Hybrid - Central/West London & WFH Circa £75,000 - £90,000 + Bonus and good benefits An exciting opportunity for a hands-on Senior Developer eager to make a real impact with architectural skills and deep experience in C#/.Net, React, React Native, and Azure. Our client is launching a major initiative to bring development in-house, and you'll be a key player as they migrate a monolithic booking system to.NET 10 Azure-native microservices. The Senior Developer will mentor a small team of mid-level developers and be hands on writing C# production code, React web portals and the React Native mobile screens themselves. They ll be making pragmatic architectural decisions that keep delivery front and centre. Its a hybrid role with the flexibility to work from home on Mondays and Fridays. Key Responsibilities include: Implement complex C# microservices - Minimal APIs, Worker Services, DAPR integration,.NET Aspire orchestration Build and own the React web portal - component architecture, TypeScript, React Query, state management Lead React Native mobile development for the app - Expo/bare workflow, push notifications, offline sync Design the anti-corruption layer translating Legacy domain concepts into DDD aggregates Make lightweight but durable architectural decisions (ADRs) Mentor mid-level developers Key Skills required: C#/.NET 8 onwards at expert level - Minimal APIs, async patterns, Worker Services, EF Core,.NET Aspire React/TypeScript - expert level; hooks, context, React Query, component libraries, portal development React Native - production mobile app experience; Expo, offline-first patterns, platform-specific APIs Azure cloud-native - AKS/Container Apps, Service Bus, API Management, Blob Storage, Azure DevOps Microservices patterns - strangler fig, DAPR pub/sub, saga orchestration, transactional outbox DDD fundamentals - bounded contexts, aggregates, domain events, CQRS SQL Server - schema design, EF Core migrations, query performance tuning This role is perfect for those who thrive in small, flat-structured teams and collaborative environments where every contribution makes a difference. Salary will reflect experience, with a likely range of £75,000 - £90,000, plus bonus, company pension contributions, and other benefits. For further information, please send your CV to Wayne Young at Youngs Employment Services Ltd. YES are operating as both a recruitment Agency and Recruitment Business.