Senior Backend Developer (.NET, C#) (Hybrid - JHB)

Recruiter:

Datafin IT Recruitment

Job Ref:

4053054743

Date posted:

Thursday, February 26, 2026

Location:

Johannesburg, South Africa

SUMMARY:
-

POSITION INFO:

ENVIRONMENT:

A Software Solutions company is currently seeking an experienced C# Back-End Developer to join their development team and work closely with a Johannesburg-based customer. The successful candidate will be responsible for designing, building, and maintaining integration-focused back-end systems, ensuring reliability, scalability, and performance. This role is ideal for a developer who enjoys working on system integrations, APIs, and cloud-based solutions in a professional, customer-facing environment.

DUTIES:

Design, develop, and maintain back-end applications and integration services using C# and .NET
Build and consume RESTful APIs and third-party system integrations
Collaborate with the customer’s technical and business teams to understand integration requirements
Write clean, maintainable, and well-documented code
Troubleshoot, debug, and optimise existing systems
Participate in code reviews and contribute to best practices
Use Azure DevOps for source control, CI/CD, and work item tracking
Support cloud-based deployments and environments (Azure preferred)

REQUIREMENTS:

Required Skills & Experience

5+ years of hands-on experience with C# (.NET / .NET Core)
Strong back-end development experience
Proven experience building integration software
Solid understanding of: REST APIs, JSON / XML, SQL databases (e.g. SQL Server)
Experience with version control systems (Git)
Strong problem-solving and analytical skills
Ability to work independently and communicate effectively with customers

Advantageous (Nice to Have)

Experience with Microsoft Azure (App Services, Functions, Storage, etc.)
Experience with Azure DevOps pipelines and deployments
Exposure to microservices architecture
Experience integrating with ERP, CRM, or financial systems
Knowledge of security best practices for APIs and integrations

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