EC

Erick Castillo

Lead .Net/Azure Developer

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Meijer

.Net Developer

May 2021 - July 2021

The Problem

Mission-critical retail operations spanning 200+ stores required high-availability systems capable of processing 100K+ daily transactions. The existing infrastructure had high cloud costs, lacked Infrastructure as Code practices, and suffered from data latency issues across distributed environments. Junior developers needed upskilling on cloud architecture patterns.

The Solution

Developed cloud-native applications using Azure Functions, Service Bus, and Event Grid for reliable message-driven architecture. Integrated CosmosDB for high-throughput, geo-redundant data operations. Implemented CI/CD pipelines with Infrastructure as Code (ARM templates). Executed Azure cost optimization strategies and built reporting solutions with Power BI. Mentored junior developers on cloud best practices.

Implementation

Built scalable backend services using Azure Functions for compute, Service Bus for asynchronous messaging, and Event Grid for event routing, processing 100K+ daily transactions reliably. Configured CosmosDB with geo-redundancy for low-latency data access across distributed retail environments. Automated deployments with Azure DevOps CI/CD pipelines and ARM templates. Analyzed Azure resource utilization and implemented reserved instances, right-sizing, and resource optimization. Created Power BI dashboards connected to Azure SQL and CosmosDB for business intelligence reporting.

Technologies

.Net SQL Azure Cosmos DB Service Bus

Impact & Results

Achieved 25% reduction in Azure infrastructure costs through optimization strategies. Ensured high availability and performance at scale for 200+ retail stores. Enabled low-latency data access across distributed environments with CosmosDB. Reduced manual release overhead through automated deployments and Infrastructure as Code. Accelerated team capability growth through mentorship on cloud architecture.
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