Senior Software Developer - Modernisation & Integration (C#)

ATS Client; Cape Town; On-site; ZAR 420,000 - 900,000; Full time

Job summary

ATS Client is seeking a software professional to join our financial-services team in Cape Town. The role focuses on delivering production-ready C#/.NET 6 and MVC enhancements to support modernisation of critical transaction platforms.

You will design and optimise SQL Server and MySQL data layers, build RESTful API and SOAP/WCF integrations, and ensure stability through robust unit testing, code reviews, and CI/DevOps practices.

Qualifications

• Experience delivering production-ready C#/.NET 6 and MVC enhancements.
• Design and optimise SQL Server and MySQL data layers.
• Build and strengthen RESTful API and SOAP/WCF integrations.
• Improve stability by resolving root causes and applying fixes.
• Contribute well-tested releases through unit testing, code reviews, and CI/DevOps.

Responsibilities

• Deliver production-ready C#/.NET 6 and MVC enhancements.
• Design and optimise SQL Server and MySQL data-layer components.
• Build and strengthen RESTful API and SOAP/WCF integrations.
• Improve stability by resolving root-cause incidents and applying fixes.
• Contribute tested releases through CI/DevOps and source-control discipline.
• Collaborate with analysts, testers and developers; maintain technical documentation.

Skills

C#

.NET 6

MVC

SQL Server

MySQL

RESTful API

SOAP/WCF

Unit testing

CI/DevOps

Source control

Tools

SSIS

WCF

Git

Job description

Overview

Join an established, customer-focused financial-services organisation modernising critical transaction platforms. The Microsoft-led environment is moving toward web-based, API-first services with multiple third-party integrations supporting essential business processes.

Performance objectives for year one

• Deliver production-ready C#/.NET 6 and MVC enhancements supporting priority business processes and web-platform modernisation.
• Design and optimise SQL Server and MySQL data-layer components, including stored procedures and SSIS work where required.
• Build and strengthen RESTful API and SOAP/WCF integrations with reliable XML and JSON handling.
• Improve stability and maintainability by resolving incidents at root cause and applying lasting fixes.
• Contribute well-tested releases through unit testing, code reviews, CI/DevOps practices and disciplined source control.
• Collaborate with analysts, testers and developers; maintain useful technical documentation and share knowledge.