Senior Full Stack Developer
Sun International
2026/04/17   Sandton

Job Ref #: SI-876
Industry: Information Technology
Job Type: Permanent
Positions Available: 1
Sun International is looking for a Senior Full Stack Developer to join the SunBet team, contributing across the full technology stack. This role involves building and maintaining scalable, secure, and high-performing solutions across frontend, backend, APIs, and data layers, delivering seamless user experiences across web and mobile platforms.
Job Description

The Senior Full Stack Developer is a hands-on technical contributor responsible for designing, building, and maintaining high-quality features across the full technology stack of SunBet’s online iGaming platform. Working within the Client & Mobile Experience team, the role spans frontend interfaces, backend services, APIs, and data layers, ensuring performant, secure, and scalable solutions that deliver seamless gameplay and rich user experiences across web and mobile.

 

Core behavioural & Technical / proficiency competencies:

  • Frontend & Web Technologies (React, Next.js, HTML/CSS)
  • Backend Development (Node.js, NestJS, API Design)
  • Database & Data Layer (SQL, NoSQL, query optimisation)
  • Integration & API Patterns (REST, GraphQL, WebSockets)
  • Architecture & Design Principles
  • Cloud & DevOps (Azure, CI/CD, containerisation)
  • Security & Compliance Awareness
  • Understanding of localisation, multi-currency support, and regional compliance
  • Problem-Solving & Analytical Thinking
  • Collaboration & Communication
  • Adaptable
  • Customer-Centric Orientation
  • Execution & Delivery Focus
  • Agile &
  • Innovation & Continuous Improvement
Job Requirements

Qualifications:

  • Bachelor’s degree in computer science, Software Development, or a related field (required)
  • Master’s degree in computer science, Software Development, or a related field (advantageous)

Experience

  • 5–8 years’ experience in full stack software development
  • Strong proficiency in TypeScript/JavaScript, React (or Next.js), and Node.js (or NestJS)
  • Solid backend experience with RESTful API design, microservices, and relational/NoSQL databases
  • Experience in iGaming, fintech, or other regulated industries (advantageous)
  • Working knowledge of CI/CD pipelines, containerisation (Docker), and cloud platforms (Azure preferred)
  • Familiarity with real-time communication patterns (WebSockets, SSE) and event-driven architectures
  • Exposure to feature flags, A/B testing frameworks, and observability tooling
  • Experience with mobile development (React Native or Flutter) is a plus
  • Experience with C# / .NET is advantageous