Senior Backend Developer

Rosstone Professional Solutions • SQL • C# • ETL/ELT • 6 days ago
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Salary
≈ $35k – $72k per year (Estimated)
Location
In office (Cape Town)
Seniority
Senior · 10+ years exp

Confirmed on the employer's own hiring board on Oct 10, 2026. First seen by Alion on Jul 29, 2026. Rosstone Professional Solutions scores D on the Alion truth index.

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Rosstone Professional Solutions

Rosstone Professional Solutions, the trading name of Rosstone Consulting, is a South African workforce solutions company that supplies specialised professionals on flexible terms to ICT, engineering and financial services clients. Its services cover talent resourcing, workforce and vendor management and the facilitation of independent contractors and freelancers, with placements concentrated in Johannesburg, Sandton, Cape Town, Centurion and Pretoria. It recruits for client assignments such as software and DevOps engineers, data scientists, SAP consultants, project and programme managers, process and mechanical engineers and IT support technicians.
rosstone.co.za • Johannesburg • Durban • Pretoria • Cape Town • Gqeberha • Recruiting & Staffing

About the Role:

We are seeking a highly experienced Senior Backend Engineer with 10+ years of professional software development experience to lead the design, development, and evolution of our core backend systems.

You will architect and maintain scalable .NET Core and .NET Framework services, design high-performance SQL Server solutions, and contribute to ETL pipelines and reporting processes.

Minimum Requirements:

  • 10+ years of professional software development experience
  • Deep expertise in .NET Core / C# and building scalable, production-grade RESTful Web APIs
  • Strong experience designing and maintaining distributed and enterprise-grade systems
  • Experience implementing and optimising CI/CD pipelines (Azure DevOps or similar)
  • Strong understanding of clean architecture, SOLID principles, and design patterns
  • Demonstrated experience mentoring engineers and conducting technical reviews
  • Advanced knowledge of Microsoft SQL Server, including schema design, indexing strategy, performance tuning, and query optimisation
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