.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