Senior Software Developer (AI & .NET)

Our client is seeking an experienced Senior Software Developer to join their Johannesburg office. This role is ideal for a technically accomplished developer who enjoys building scalable, maintainable software while helping the business leverage AI to solve real operational challenges. Working within an approved Claude Enterprise environment, you will play a key role in modernising existing systems, developing new solutions, and mentoring other developers. Key Responsibilities Design, develop, and maintain scalable applications using C# and .NET. Build and support APIs and backend services. Enhance, optimise, and maintain existing business-critical systems. Work closely with business stakeholders to understand operational challenges and translate them into reliable software solutions. Develop and optimise PostgreSQL databases, queries, and data models. Design efficient relational and vector-based data architectures. Drive practical AI adoption using Claude Enterprise and AI-assisted development workflows. Support the migration of low-code solutions to modern application architectures. Contribute to software architecture discussions and promote maintainable development practices. Mentor junior developers and encourage development best practices. Requirements Extensive experience with C# and .NET development. Strong experience building APIs and backend services. Advanced PostgreSQL and SQL development skills. Experience with database design, query optimisation, and data modelling. Practical experience working with Claude Enterprise and AI-assisted development workflows. Strong understanding of relational and vector database architectures. Excellent communication, analytical, and problem-solving skills. Ability to work effectively with both technical and non-technical stakeholders. Advantageous Experience Power Apps and Power Automate. Dataverse migration to PostgreSQL. Power BI. Azure DevOps and CI/CD pipelines. JavaScript, TypeScript, React, or Blazor. Experience within Fintech, Financial Services, Lending, or other regulated industries. Should you meet the requirements for this position, please email your CV to it.vacancy@stand-outstaffing.co.za. You can also contact us on 031 350 4019 or alternatively you can visit our website https://stand-outstaffing.co.za Correspondence will only be conducted with short listed candidates. Should you not hear from us within 4 days, please consider your application unsuccessful.