.NET / Azure Backend API Developer

Job Title: .NET / Azure Backend API Developer

Location: Miami, Florida (Hybrid – Local Candidates Preferred)

Job Summary

STAFFXPERT LLC is seeking a .NET / Azure Backend API Developer on behalf of our client in Miami, Florida. This role involves designing and building scalable, secure, and high-performance backend services using modern .NET technologies and Microsoft Azure. The ideal candidate will have strong experience in API development, cloud architecture, and database optimization.

Key Responsibilities

• Design, develop, and maintain RESTful APIs using C# and .NET (Core/.NET 6 )
• Build and deploy cloud-native applications on Microsoft Azure (App Services, Azure Functions)
• Translate business requirements into scalable and resilient backend solutions
• Develop and optimize SQL queries, stored procedures, and manage Azure SQL databases
• Implement secure authentication and authorization (Azure AD, JWT, OAuth)
• Integrate with Azure services such as Service Bus, Storage Accounts, and Key Vault
• Collaborate with frontend teams to define API contracts and ensure smooth integration
• Troubleshoot and resolve backend issues across systems
• Develop and maintain unit and integration tests
• Contribute to CI/CD pipelines using Azure DevOps or GitHub Actions
• Monitor and enhance application performance using Azure Monitor and Application Insights
  
  

Required Qualifications

• 5–8 years of experience in backend/API development
• Strong proficiency in C# and .NET Core / .NET 6
• Hands-on experience with Microsoft Azure (App Services, Azure Functions, Azure SQL)
• Solid understanding of RESTful API design and best practices
• Strong experience with SQL Server / Azure SQL (performance tuning, indexing)
• Experience with ORM frameworks such as Entity Framework Core and/or Dapper
• Knowledge of asynchronous programming, dependency injection, and middleware
• Proficiency with Git and modern development workflows
• Working knowledge of frontend technologies (JavaScript, HTML, CSS, React or Angular)
  
  

Preferred Qualifications

• Experience with event-driven architecture (Azure Service Bus, Event Grid, Event Hubs)
• Familiarity with containerization (Docker) and Azure Kubernetes Service (AKS)
• Experience with Infrastructure as Code (ARM templates, Bicep, or Terraform)
• Exposure to Azure API Management
• Knowledge of Azure security best practices (Managed Identities, Key Vault)
• Understanding of distributed systems, scalability, and resiliency patterns