Senior Full Stack Developer

Overview

Senior Full Stack Developer Jobs in Sandton, South Africa at Sun International

The Senior Full Stack Developer is responsible to design, build, and maintain full-stack digital and integration solutions across Sun International’s technology landscape, with a specific focus on backend service development, RESTful and event-driven API governance, containerised application delivery, CI/CD pipeline ownership, and automated quality assurance. The incumbent will work within the Technology Solutions team to deliver scalable, observable, and well-tested platforms that underpin casino operations, loyalty systems, hospitality services, and online channels.

Core

behavioural & Technical / proficiency competencies

• Backend:
  Node.js, .NET Core (C#), Python — REST & Graph

  QL APIs

• Frontend:
  React or Angular, Type Script, HTML5/CSS3
• Containers:
  Docker, Kubernetes / AKS, Helm
• Cloud:
  Microsoft Azure (App Services, Functions, Service Bus, AKS, Key Vault, Monitor)
• CI/CD:
  Azure Dev Ops Pipelines, Git branching strategies, release gates
• IaC:
  Terraform or Azure Bicep
• Observability:
  Application Insights, Open Telemetry, structured logging
• Testing: xUnit/.NET, Jest (JS), Playwright, Postman/Newman
• Databases: SQL Server / Azure SQL, Postgre

  SQL, Azure Cosmos DB

• API governance:
  OpenAPI/Swagger, versioning, security (OAuth 2.0/OIDC)
• CMS:
  Umbraco (custom types, templates, headless/API mode, Azure hosting migration)
• Dev Ops tooling:
  Azure Boards, Confluence, Git
• Problem-solving
• Communication Skills
• Continuous Learning
• Attention to Detail

Qualifications

• BSc Computer Science, Software Engineering, Information Technology
• Microsoft Certified:
  Azure Developer Associate (AZ-204) or Azure Dev Ops Engineer Expert (AZ-400);
  Docker Certified Associate or equivalent cloud/container certification – preferred

Experience

• 8+ years’ proven experience in full-stack development with production delivery, including:
• Backend service development (Node.js, .NET Core, or Python) with RESTful API design
• Frontend development in React or Angular
• Docker containerisation and Kubernetes deployment (AKS preferred)
• CI/CD pipeline authoring and ownership in Azure Dev Ops or equivalent
• Azure cloud services (App Services, Azure Functions, Service Bus, SQL/Cosmos DB)
• Automated testing (unit, integration, end-to-end)
• Experience in gaming, hospitality, loyalty, or payments technology highly advantageous
• Umbraco CMS development (.NET-based) — custom document types, surface controllers, headless/API mode

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Title: Senior Full Stack Developer

Company: Sun International

Location: Sandton, South Africa

Category: