Senior Backend Engineer

Senior Backend Engineer (B2B SaaS)

• Competitive Salary + Company Benefits (c£60,000 to £75,000 per year DOE)
• Remote Working (UK/Ireland) The Opportunity: ISR Recruitment is working with a leading global software organisation to recruit an experienced Senior Backend Engineer to join its Product & Engineering team. This is a key opportunity for an experienced software engineer to work on the development of a next-generation B2B SaaS platform, helping shape the architecture, engineering standards and continued evolution of a highly scalable, secure and multi-tenant product used by organisations around the world. We are particularly interested in engineers who have a strong track record delivering B2B SaaS products, have experience working within multi-tenant SaaS environments, and have built their career around a consistent and stable progression through senior engineering roles. Skills and Experience:
• 8+ years' commercial software engineering experience, with significant experience in backend development.
• Strong experience delivering B2B SaaS products in a commercial environment.
• Proven experience working with multi-tenant SaaS platforms.
• A strong and demonstrable track record of career stability and sustained tenure within engineering environments.
• Excellent hands-on experience with C#, .NET Core and modern .NET, ideally .NET 8 and/or .NET 10.
• Experience designing, building and delivering production software on the Microsoft technology stack.
• Strong experience developing RESTful APIs and backend services.
• Experience working with relational databases and SQL.
• Experience building and deploying cloud-based applications, ideally using Microsoft Azure. Technology Stack The core technology environment includes the following and we welcome applications from candidates with a blend of the following skills, if not all:
• C# / .NET 8 and/or .NET 10 / .NET Core / ASP.NET Core /Entity Framework Core / RESTful APIs
• SQL / SQL Server / Azure SQL / Microsoft Azure
• Git / GitHub
• Docker
• Kubernetes
• Azure Service Bus Additional experience with .NET Aspire, OpenTelemetry, OAuth 2.0/OpenID Connect, Redis and resilience patterns would be advantageous. Role and Responsibilities: As a Senior Backend Engineer, you will play a leading role in the design and development of the organisation's cloud-native SaaS platform. You will be involved with:
• Design, build and maintain backend services, APIs and reusable libraries.
• Develop high-quality, clean and testable code using C# and modern .NET.
• Contribute to architectural decisions and help evolve a scalable, secure and resilient multi-tenant SaaS platform.
• Design and develop RESTful APIs and services consumed by web and mobile clients.
• Build event-driven and asynchronous components using technologies such as Azure Service Bus.
• Work with relational databases and develop efficient SQL.
• Build and deploy cloud-based applications, ideally within Microsoft Azure.
• Contribute to automated testing, code reviews and engineering best practice.
• Support continuous improvement, refactoring and performance optimisation.
• Work collaboratively within an Agile Product & Engineering environment.
• Translate functional and technical requirements into robust, production-ready software.
• Mentor and support other engineers and contribute to raising engineering standards across the team. Applications: For further information on this newly created role working on predominantly greenfield projects as a Senior Backend Developer; please call and speak with Edward Laing here at ISR Recruitment or email me a copy of your very latest CV for a call back in the very strictest of confidence. If you're an experienced Senior Backend Engineer with a strong B2B SaaS and modern .NET background, and you're looking for an opportunity to help shape a cloud-native, multi-tenant platform; please contact Edward here at ISR to learn more about our client and how they are leading the way in developing the next generation of technical solutions through innovation and transformational technology?