Senior Full Stack Developer

20 hours ago


Johannesburg, Gauteng, South Africa Level-Up Full time R80 000 - R150 000 per year

The Senior Full Stack Developer architects, builds, and evolves enterprise-grade applications leveraging .NET 8/9, React v19, and Microsoft Azure Cloud Services. This role delivers technical leadership throughout the complete software lifecycle from conceptual design through production monitoring ensuring delivery of scalable, secure, cloud-native solutions that drive business value and align with enterprise architecture standards.

This position demands both deep technical expertise and collaborative leadership, bridging development teams, cloud infrastructure, and business stakeholders to deliver high-performance applications built on modern engineering principles.

Core Responsibilities

Solution Architecture & Engineering

  • Architect and build full-stack enterprise applications using .NET 8/9 (C#, ASP.NET Core) backend services and React v19 + TypeScript frontend experiences.
  • Design RESTful APIs, microservices architectures, and event-driven systems for scalability and resilience.
  • Apply industry-standard design patterns including SOLID principles, Clean Architecture, and CQRS.
  • Enforce secure coding practices and security-by-design methodologies across all deliverables.

Azure Cloud Architecture & Services

  • Integrate applications with Azure ecosystem services: App Service, Functions, Blob Storage, Service Bus, Key Vault, and Azure SQL Database.
  • Implement comprehensive observability using Azure Monitor, Application Insights, and Log Analytics for performance optimization and diagnostics.
  • Employ Infrastructure-as-Code approaches using Terraform, Bicep, or ARM Templates for reproducible cloud environments.

DevOps Engineering & Automation

  • Design and maintain robust CI/CD pipelines through Azure DevOps or GitHub Actions.
  • Enable containerized deployments using Azure Container Apps or Azure Kubernetes Service (AKS).
  • Integrate automated testing suites, static code analysis, and progressive deployment strategies including blue-green and canary releases.

Agile Collaboration & Technical Governance

  • Actively contribute to Agile/Scrum ceremonies including sprint planning, daily standups, and retrospectives.
  • Conduct rigorous peer code reviews to maintain engineering excellence and consistent quality standards.
  • Ensure solutions comply with organizational policies, information security frameworks, and architectural governance requirements.

Technical Leadership & Innovation

  • Mentor and coach junior developers, providing guidance on complex problem-solving and architectural decisions.
  • Drive process improvements, develop reusable component libraries, and establish best-practice frameworks.
  • Maintain currency with evolving technologies, tools, and methodologies across .NET, React, and Azure platforms

Required Competencies

  • Design and develop full-stack applications using .NET 8/9 (C#, ASP.NET Core) and React v19 + TypeScript.
  • Implement RESTful APIs, microservices, and event-driven architectures.
  • Apply SOLID principles, Clean Architecture, and secure coding practices.
  • Proficient in Entity Framework Core, LINQ, and Dependency Injection.
  • Strong working knowledge of Azure App Service, Functions, Blob Storage, Service Bus, Key Vault, and Azure SQL Database.
  • Experience integrating applications across Azure Cloud environments.
  • Competent in using Application Insights and Log Analytics for diagnostics.
  • Build and manage CI/CD pipelines using Azure DevOps or GitHub Actions.
  • Hands-on experience with Git for version control and branch management.
  • Experience with automated testing frameworks such as xUnit, NUnit, Jest, and React Testing Library.
  • Work effectively in Agile/Scrum environments sprint planning, standups, and retrospectives.
  • Conduct peer code reviews and uphold high coding standards.
  • Ensure compliance with security and architecture governance.
  • Mentor and guide junior developers and technical team members.
  • Promote process optimization, reusable components, and best-practice frameworks.
  • Strong technical proficiency in:
    • Backend: .NET 8/9, ASP.NET Core, C#, Web API, EF Core
    • Frontend: React v19, TypeScript, HTML5, CSS3, Material UI
    • Database: Azure SQL, T-SQL, Stored Procedures
    • DevOps/Cloud: Azure DevOps, GitHub Actions, App Service, Azure Functions, Service Bus
    • Testing: xUnit/NUnit, Jest, React Testing Library

Advantageous Competencies

  • Experience with CQRS, Domain-Driven Design (DDD), and event sourcing.
  • Familiarity with Redux or Context API for advanced state management.
  • Contribution to internal component libraries or reusable frameworks.
  • Experience implementing Infrastructure-as-Code (Terraform, Bicep, ARM Templates).
  • Exposure to Azure Container Apps, AKS, and Kubernetes orchestration.
  • Understanding of blue-green or canary deployment strategies.
  • Experience optimizing pipeline performance or implementing automated rollback strategies.
  • Familiarity with Terraform-based CI/CD orchestration and release gating.
  • Participation in defining coding standards, DevOps guidelines, or security policies.
  • Experience contributing to technical documentation or architecture decision records (ADRs).
  • Provide technical leadership across multiple teams or domains.
  • Active involvement in the .NET, React, or Azure developer community (e.g., GitHub, meetups).
  • Deep knowledge of Architecture and DevOps Tools, including:
    • Architecture: CQRS, DDD, Event Sourcing, Microservices
    • DevOps Tools: Terraform, Bicep, AKS, Application Insights, Log Analytics

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