Senior Software Engineer: Scalable .NET/Python FinTech Stack

Join Barclays as a Senior Software Engineer, where you will design and build scalable C# (.NET/.NET Core) and Python-based calculation engines to drive efficiency and enable dynamic client billing. You will develop robust data models in SQL Server, implement complex business logic, and deliver low-latency REST APIs and React-based user interfaces for internal teams. Leveraging Python for analytics, data processing, and automation, you will also containerise applications using Docker and deploy them through secure CI/CD pipelines aligned with Azure. Working closely with business stakeholders, you will ensure billing outputs are accurate, transparent, and auditable while contributing to architectural design, performance optimisation, and operational resilience.

To be successful in this role, you should have:

• Strong hands-on experience with C# .NET / .NET Core in financial, analytical, or data heavy applications
• Strong SQL Server skills for large datasets ...