Website Robert Walters
Robert Walters is a global, specialist professional recruitment consultancy. "Our story begins in 1985, when our CEO, Robert Walters, opened the first office in Central London. Rob has led the company ever since and has the same passion and commitment today. Over the last 30 years the busines… read mores has grown and so has our ambition. We now operate across 27 countries and employ over 3,000 people. It’s a powerful success story built on the strength of our people. Organizations rely on us to find high quality professionals for a range of specialist roles. Professionals who are looking for a new role, whether it’s on a permanent, interim or contract basis, trust us to find them their ideal job. I believe that Robert Walters is something special. But I and others in the company never forget that the most important person to us is you – whether you’re a hiring manager or a job seeker." Giles Daubeney, Deputy CEO, Robert Walters Green Park Corner, Green Park Corner Cnr West Road South and, Lower Rd, Johannesburg, 2196, South Africa
Position Overview
Our client is seeking a highly experienced Senior .NET Developer with deep technical expertise across the Microsoft technology stack. This is a critical hire for someone who understands systems end-to-end — from database architecture and optimisation through to API design and scalable backend services.
This role requires a very senior engineer who combines strong corporate experience with hands-on technical depth, and who actively leverages AI tools to enhance productivity, code quality, testing, and solution design.
Key Responsibilities
Architecture & Development
Design, develop, and maintain enterprise-grade applications using .NET and C#.
Build and optimise RESTful APIs and backend services.
Architect and maintain robust database structures (SQL Server or similar), ensuring performance and scalability.
Drive system performance tuning, security, and reliability best practices.
Contribute to high-level architectural decisions and technical strategy.
AI-Enabled Engineering
Use AI development tools to supercharge coding efficiency, debugging, refactoring, and documentation.
Apply AI-assisted approaches to testing, code review, and architectural planning.
Contribute to integrating AI-driven capabilities into products where appropriate.
Stay current with emerging AI tooling and modern engineering practices.
Corporate & Enterprise Delivery
Operate effectively within structured corporate governance and compliance environments.
Collaborate closely with cross-functional teams including Product, Risk, Operations, and Leadership.
Ensure solutions meet enterprise standards for scalability, maintainability, and security.
Technical Leadership
Provide mentorship and guidance to mid-level and junior developers.
Promote engineering excellence, clean code principles, and best practices.
Support continuous improvement of development frameworks, standards, and tooling.
Qualifications / Required Skills
8+ years of experience in .NET and C# development.
Strong expertise across the Microsoft stack (.NET Core, ASP.NET, SQL Server; Azure is advantageous).
Deep understanding of:
Database design and optimisation
API architecture and integration
System scalability and performance engineering
Proven experience within corporate or enterprise environments.
Demonstrated ability to effectively use AI tools to enhance development workflows.
Strong understanding of software architecture principles and clean coding standards.
Excellent analytical, problem-solving, and communication skills.
Nice to Have
Experience with Azure cloud architecture and DevOps practices (CI/CD, containerisation).
Exposure to AI/ML concepts or experience integrating AI services into applications.
Experience in fintech, financial services, or regulated environments.
Experience working in distributed or international teams.
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Apply via company website ( https://www.robertwalters.co.za/ ) or