Lead Integration & Backend Developer (.NET Core | Azure)

Job Title: Lead Integration & Backend Developer (.NET Core | Azure)

Location: Karachi, Lahore, Islamabad (Remote)

Experience: 8+ years

Job Summary

We are seeking a highly skilled Lead Integration & Backend Developer with strong expertise in .NET Core and Microsoft Azure integration services . The ideal candidate will be responsible for designing, developing, and managing scalable backend APIs and enterprise-grade integrations across cloud and on-premise systems. This role requires hands-on experience with Azure serverless technologies, API management, and secure data integration in hybrid environments.

Key Responsibilities

• Design, develop, and maintain scalable backend APIs using .NET Core
• Build and manage integrations using Azure Logic Apps and Azure Functions (Serverless)
• Implement and manage RESTful APIs, ensuring performance, scalability, and reliability
• Configure and enforce API Gateway policies, including throttling, routing, and transformations
• Implement OAuth2 authentication and authorization mechanisms
• Manage and optimize Azure API Management (APIM) for:
• Multi-tenant product packaging
• Rate limiting
• Subscription key management
• Ensure secure, encrypted end-to-end data transmission between Azure and on-premise systems
• Design and maintain hybrid integration solutions connecting cloud and enterprise applications
• Set up and manage On-Premises Data Gateways for seamless hybrid connectivity
• Troubleshoot and resolve integration and performance issues across distributed systems
• Collaborate with cross-functional teams including DevOps, Security, and Architecture teams
  

Required Skills & Qualifications

• Strong experience in .NET Core / ASP.NET Core for backend development
• Hands-on expertise with:
• Azure Logic Apps
• Azure Functions
• Deep understanding of:
• REST APIs
• API Gateway policies
• OAuth2 / API security frameworks
• Extensive experience with Azure API Management (APIM)
• Solid knowledge of hybrid cloud architecture and integration patterns
• Experience implementing secure communication protocols and encryption standards
• Hands-on experience with On-Premises Data Gateway setup and management
• Strong problem-solving and debugging skills
  

Preferred Qualifications

• Experience with enterprise integration patterns (EIP)
• Familiarity with CI/CD pipelines and DevOps practices
• Knowledge of microservices architecture
• Azure certifications (e.g., AZ-204, AZ-305) are a plus