Midâsenior.Net Developer

Recru-It; Johannesburg; On-site; ZAR 550 000 - 750 000; Full time

Job summary

A dynamic technology consulting firm in Johannesburg seeks a skilled Backend Developer experienced in .NET development and Azure cloud environments. The role involves designing and maintaining backend services, developing RESTful APIs, and collaborating in Agile teams. The ideal candidate will possess a Bachelor's Degree in Computer Science and at least 5 years of experience in software development, with a strong focus on performance, security, and clean coding practices.

Qualifications

• 5 years of professional experience in .NET software development.
• At least 2+ years working in Azure Cloud environments.
• Experience in scalable platform design or identity/verification systems is an advantage.

Responsibilities

• Design, build, and maintain backend services using .NET.
• Develop and maintain RESTful APIs for identity verification and external system integrations.
• Deploy and manage applications on Azure.
• Implement CI/CD pipelines.
• Collaborate within Agile/Scrum teams.

Skills

C#

.NET 6 / 7 / 8

ASP.NET Core

Entity Framework Core

Azure App Services

Azure Functions

Azure SQL

CI/CD with Azure DevOps

Microservices

REST APIs

Docker

Kubernetes

SQL Server

OAuth2.0

Application Insights

Education

Bachelors Degree in Computer Science, Software Engineering, or related field

Tools

Azure DevOps Pipelines

GitHub Actions

Git

Azure Kubernetes Service (AKS)

Terraform

Job description

Key Responsibilities

Design, build, and maintain backend services using .NET 6 / 7 / 8 (C#).

Develop and maintain RESTful APIs for identity verification, biometric services, and external system integrations.

Integrate external systems via secure APIs.

Deploy and manage applications on Azure App Services, AKS, Azure SQL, and Azure Functions.

Implement CI / CD pipelines using Azure DevOps or GitHub Actions.

Utilize Azure API Management for API gateway and governance.

Configure Azure Key Vault for secrets and certificates management.

Implement monitoring and logging with Azure Monitor, Application Insights, and Log Analytics.

Implement RBAC, OAuth2.0 / OpenID Connect / JWT for secure authentication.

Ensure compliance with POPIA / GDPR data protection standards.

Optimize APIs and database queries for high transaction volumes.

Use Azure Load Balancer, Traffic Manager, and App Gateway for scalability and HA.

Implement fault-tolerant designs with message queues (Azure Service Bus) and event-driven architectures.

Collaborate within Agile / Scrum teams and contribute to sprint planning, stand-ups, and retrospectives.

Required Technical Skills

Core Development: C#.

NET 6 / 7 / 8, ASP.NET Core, Entity Framework Core, LINQ, Web API

Architecture: Microservices, REST APIs, Domain-Driven Design, Clean Architecture

Cloud (Advantage): Azure App Services, Azure Functions, Azure API Management, Azure SQL, Azure Key Vault, Azure Blob Storage, Azure Service Bus, Azure AD

DevOps & CI / CD: Azure DevOps Pipelines, GitHub Actions, Docker, Kubernetes, Helm

Database: SQL Server, Azure SQL, Stored Procedures, Indexing, Performance Tuning

Security: OAuth2.0, OpenID Connect, JWT, HTTPS / TLS, IdentityServer4, Azure AD B2C

Testing: xUnit / NUnit / MSTest, Moq, Postman Collections, Swagger / OpenAPI

Monitoring: Application Insights, Azure Monitor, Log Analytics, ELK Stack

Version Control: Git, GitHub / Azure Repos

Deployment: Containers (Docker), Azure Kubernetes Service (AKS), ARM / Bicep templates

Other Plus Skills: PowerShell scripting, Terraform (IaC), API Gateway configuration, CI / CD automation

Qualifications

Bachelors Degree in Computer Science, Software Engineering, or related field.

47 years of professional experience in .NET software development.

At least 2+ years working in Azure Cloud environments.

Experience in scalable platform design or identity / verification systems is an advantage.

Soft Skills

Strong analytical and problem-solving abilities.

Passion for writing clean, efficient, and maintainable code.

Excellent teamwork and communication skills.

Proven ability to work independently and deliver in fast-paced environments.

Attention to detail with focus on performance and security.

Added Advantages

Experience with CI / CD pipelines for regulated industries (government, banking, healthcare).

Familiarity with biometric integrations (fingerprint, face, ID verification APIs).

Experience with Agile, Scrum, or DevOps culture.

Knowledge of container orchestration (AKS / ECS) and infrastructure as code (Terraform / Bicep).

Reporting Line

Reports to: Chief Technology Officer (CTO)