EC

Erick Castillo

Lead .Net/Azure Developer

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RMCI

.Net Developer

May 2023 - November 2023

The Problem

The existing monolithic .NET Framework 4.8 application struggled to scale under growing user demand (10,000+ daily users), suffered from tightly coupled components that slowed feature delivery, and lacked proper API governance. Issue detection was slow and reactive, leading to extended downtime and poor user experience.

The Solution

Redesigned the application architecture from monolithic to microservices using Docker and Azure Kubernetes Service (AKS). Migrated legacy .NET Framework 4.8 applications to .NET Core and integrated Java microservices. Implemented Azure API Management for centralized API governance and Azure Monitor with Application Insights for proactive performance monitoring. Built serverless event-driven applications using Azure Functions.

Implementation

Decomposed the monolith into independently deployable microservices containerized with Docker and orchestrated on AKS. Built high-performance web applications using ASP.NET Core 8, Node.js, and Angular with RESTful APIs. Configured Azure APIM for API versioning, security, and partner integrations. Implemented Azure Functions for real-time data stream processing and scheduled jobs. Set up Application Insights dashboards and alerts for proactive issue detection. Designed optimized SQL queries for large datasets and implemented JWT, OAuth2, and Active Directory authentication.

Technologies

.Net Azure SQL APIM API Asp.net Core 8

Impact & Results

Improved system scalability by 40% and enabled independent service deployments. Boosted application performance by 30% through the .NET Core migration. Reduced issue detection time by 50% and maintained 99.9% application uptime. Reduced infrastructure overhead through serverless architecture. Improved API governance and security across the platform.
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