Senior C# Developer

Absa Group; Cape Town; On-site; ZAR 600 000 - 900 000; Full time

Job summary

A prominent banking institution in Cape Town seeks a Senior C# Developer to enhance trading GUIs and backend components. The position involves working on real-time trading applications, leading UI modernization efforts, and collaborating with cross-functional teams. Ideal candidates will have over 7 years of experience in C#/.NET development, strong knowledge of WPF, multithreading, and backend systems. This role offers opportunities for technical leadership and innovation in a collaborative environment.

Qualifications

• Minimum of 7 years of professional experience in C#/.NET development.
• Strong knowledge of WPF and UI performance tuning.
• Experience with real-time systems and multithreaded programming.

Responsibilities

• Maintain and enhance C#/WPF trading GUIs.
• Lead UI modernization and backend component development.
• Collaborate with cross-functional teams on trading systems.

Skills

C#/.NET development

WPF

Multithreading

REST APIs

Analytical skills

Education

Bachelor's Degree in Information Technology

Tools

Avalonia

Solace/Kafka

Job description

Empowering Africa's tomorrow, together...one story at a time.With over years of rich history and strongly positioned as a local bank with regional and international expertise, a career with our family offers the opportunity to be part of this exciting growth journey, to reset our future and shape our destiny as a proudly African group. My Career Development Portal: Where you are in your career, we are here for you. Design your future. Discover leading-edge guidance, tools and support to unlock your potential. You are Absa. You are possibility.

Job Summary

We are hiring a Senior C# Developer to join our Electronic Trading technology team. This role focuses on maintaining and modernizing our trading GUIs and backend components, ensuring high performance, stability, and excellent user experience for our Markets business. The successful candidate will work on real-time, event-driven applications and contribute to the evolution of our trading platform, including UI modernization initiatives.

Job Description

• Maintain and enhance C#/WPF trading GUIs, ensuring performance and responsiveness.
• Lead UI modernization efforts, including migration to modern frameworks such as Avalonia.
• Develop and optimize multithreaded, asynchronous C# backend components.
• Troubleshoot production issues and ensure stability of mission‑critical systems.
• Collaborate with cross‑functional teams including trading, QA, infrastructure, and platform engineering.
• Contribute to architecture discussions, code reviews, and engineering best practices.
• Mentor team members where appropriate.

Required Experience

• 7+ years of professional experience in C#/.NET development.
• Strong knowledge of WPF, MVVM, data binding, and UI performance tuning.
• Deep understanding of multithreading, concurrency, and asynchronous programming.
• Experience with high-performance or real-time systems.
• Backend development experience including REST APIs, messaging (Solace/Kafka), and databases.
• Strong analytical and debugging skills.

Preferred Qualifications

• Experience with Avalonia, MAUI, Uno, or modern cross‑platform UI frameworks.
• Background in electronic trading or financial technology.
• Knowledge of FIX protocol, OMS/EMS, or trading workflows.
• Experience with memory optimization, GC tuning, and UI thread performance.

Soft Skills

• High sense of ownership and accountability.
• Strong communication skills with both business and technical teams.
• Proactive problem‑solving approach and focus on system quality.
• Ability to mentor junior developers and influence technical direction.

Why Join Us

• Work on mission‑critical trading systems with real business impact.
• Be part of the modernization of our trading UI platform.
• Strong engineering culture and collaborative environment.
• Opportunities for technical leadership and innovation.

Education

Bachelor's Degree: Information Technology

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