Senior C# Developer (perm)

Our client in the Financial Services space who’s Systems Support division is requires a senior who can take a live, integrated product apart and put it back stronger. This is permanent, hybrid work in Cape Town or Woodmead, at a market-related salary, for someone who already leads from the code: reusable components, resilient integrations, and a team that ships clean work. You will own the hard problems, steady the platform, and set the standard for the developers around you. Applications close 16 October 2026. Open to people with disabilities.

Responsibilities

· Build code that travels. Write components that can be reused across platforms, not thrown away after one release.

· Break complex problems into work the team can actually finish.

· Support what is live and build what is next, without letting either slip.

· Learn the product and the domain, then sit with business analysts and turn rough requirements into working software.

· Refactor with intent. Keep the codebase maintainable, adaptable, and ready for the next change.

· Hold the line on standards. Work inside the team’s processes, and improve them where they are weak.

· Push performance and high availability until the system stays up under real load.

· Prove it works. Write unit and integrated tests that show the feature does what it claims.

· Leave a trail. Document how the components fit, and how someone else uses them.

· Review code and protect quality before it reaches a client.

· Build trust with clients. Be the person they can rely on when the system is under pressure.

· Hunt the real cause. Do root cause analysis on defects in an integrated system, then fix the source, not the symptom.

· Build and deploy onto the application server, and own the result.

· Run your own functional test scenarios before anyone else has to.

· Take in other developers’ changes and make the system work again: debug their code, fix test data, close the gaps.

· Guide junior and intermediate developers so quality work lands on time.

· Give technical leadership to this team and to the teams around it.

Requirements

Requirements

· A relevant tertiary qualification in Information Technology or Computer/Engineering Sciences, and/or matric with at least 10 years of relevant experience, including 5 years as a senior developer in a team.

· Strong Microsoft web development toolsets, and a real grip on the .NET Framework and C#.

· In-depth ASP.NET, C#.NET and XML, on .NET 4.7.2 and above.