Senior Backend Engineer | C#/ASP.NET Core, Azure APIs

E-Merge IT Recruitment; Sandton; On-site; ZAR 720,000 - 880,000; Full time

Job summary

E-Merge IT Recruitment is seeking an experienced Backend Developer for a leading South African-based customer experience and business process services organisation with an international footprint. You will join the Technology team to build reliable, scalable C# / ASP.NET core web APIs, leverage SQL Server / Azure SQL, and work with Azure services.

You will collaborate in an agile environment with frontend and AI engineers to deliver high-impact solutions.

Qualifications

• Strong C# / ASP.NET core web API experience.
• Strong SQL expertise: complex queries, schema design, indexing, and query optimisation in SQL Server / Azure SQL.
• Experience building integration-heavy or BFF-style APIs (timeouts, retries, token handling, clear error mapping).
• Solid testing habits (xUnit or similar).
• Comfortable in a fast-moving agile team collaborating with frontend and AI engineers.

Skills

C# / ASP.NET core web API

SQL expertise

API design & integration

Testing (xUnit)

Agile collaboration

Tools

Azure fundamentals

Azure DevOps

Azure OpenAI / OpenAI API

Bicep

Entra ID / OAuth2

Job description

E-Merge IT Recruitment is seeking an experienced Backend Developer for a leading South African-based customer experience and business process services organisation with an international footprint. You will join the Technology team to build reliable, scalable C# / ASP.NET core web APIs, leverage SQL Server / Azure SQL, and work with Azure services.

You will collaborate in an agile environment with frontend and AI engineers to deliver high-impact solutions.