C# .Net Developer

Sabenza IT & Recruitment; Pretoria; On-site; ZAR 600,000 - 900,000; Full time

Job summary

Sabenza IT & Recruitment seeks a seasoned .NET Developer with experience in payment systems and IBM technologies. The role involves collaborating across teams, maintaining integration components, and delivering robust software solutions from design to deployment.

You will work with JSON/XML messaging and ASC, C#.NET, and Visual Studio in a Windows environment, reporting to the Pretoria/Somerset West offices as required.

Qualifications

• Relevant IT or computer/engineering qualification.
• 5–10 years of integration-focused software development experience.
• Experience with JSON and XML messaging exchange.
• XML messaging and schema validation knowledge.
• Able to mentor teammates and collaborate in a UML design model.
• Strong understanding of SDLC, tools and software development methodologies.
• In-depth ASP.NET, C#.NET, XML knowledge; DotNet 4.7.2.
• XML/JSON messaging interactions; namespace management.
• Experience with SQL relational databases (MS SQL 2008+).
• Familiarity with SoapUI or Postman; Visual Studio.

Responsibilities

• Support and develop new integration functionality and components.
• Collaborate with business analysts and cross-functional teams to refine and implement requirements.
• Refactor and improve code for maintainability, scalability and adaptability.
• Follow development standards, processes and best practices.
• Evaluate and improve application performance, reliability and availability.
• Develop and execute unit and integration tests.
• Produce and maintain technical documentation.
• Perform root-cause analysis on defects and production issues.
• Participate in building, packaging and deployment processes.
• Mentor junior developers and contribute to team collaboration.

Skills

ASP.NET

C#.NET

JSON

XML

SOA/Integration

Unit testing

Mentorship

SDLC

IBM technologies

Communication

Education

Relevant tertiary qualification in IT or Computer/Engineering Sciences and/or matric

Tools

Visual Studio

SoapUI

Postman

MS SQL Server

Job description

Pretoria, South Africa | Posted on 04/08/2026

Our clients inthe Finance space are on the hunt for a seasoned .Net Developer experienced withPayment systems, message interactions and IBM technologies. As part of the team,you will have great exposure to new technologies within diverse teams all whileenjoying the perks of a permanent position. The ideal candidate will have indepth knowledge of Microsoft technologies, effective at communication andwilling to report to either Somerset West or Pretoria as required.

Responsibilities:

• Support anddevelop new integration functionality and components.
  
• Collaborate withbusiness analysts and cross-functional teams to refine and implementrequirements.
  
• Refactor andimprove code to ensure maintainability, scalability, and adaptability.
  
• Follow andcontribute to development standards, processes, and best practices.
  
• Evaluate andimprove application performance, reliability, and availability.
  
• Develop andexecute unit and integration tests.
  
• Produce andmaintain technical documentation.
  
• Perform rootcause analysis (RCA) on system defects and production issues.
  
• Participate inbuilding, packaging, and deployment processes.
  
• Contribute toteam collaboration and, where applicable, mentor junior developers.
  

Requirements

MinimumRequirements:

• Relevant tertiaryqualification in Information Technology or Computer/Engineering Sciences and/ormatric.
  
• 5-10 years’rélevantexperience with Integration as a focus, working as part of a team in asoftware development environment.
  
• Experience withintegration solutions utilising both JSON and XML message exchange.
  
• Experience withXML messaging and schema validation
  
• Ability to workin a team environment: Follow mentorship/provide team leader mentorship,
  
• Collaborate on acommon (UML) design model.
  
• A goodunderstanding of the SDLC process, tools and techniques specifically as appliedto software development methodology.
  
• In Depth ASP.Net,C#.NET, XML knowledge
  
• DotNet 4.7.2
  
• XML and JSONmessages interaction.
  
• Understanding ofnamespace management and utilization SQL and experience with a relationaldatabase (i.e. MS SQL 2008 onwards)
  
• SoapUI/Postman
  
• Visual Studio