Solange Daniela Correa Holguin

Software Engineer (Dowdy Excel Project) at Winthrop University

Designed and delivered a reporting and export system for a nonprofit client hosted on Microsoft Azure. Built a Python/Tkinter UI with a MySQL backend to automate data reporting and enable exports into Excel, Word, and PDF. Implemented data validation, SQL injection protection, and error handling; created dynamic filters; prepared export functionality using Pandas and fpdf; migrated production data with schema refactoring and SSH tunneling for Azure-hosted MySQL; conducted unit/integration testing; delivered client demos and documentation.

Cloud Developer (AWS Cloud Projects - Apprenticeship) at Winthrop University

Designed and deployed cloud-based applications on AWS focusing on scalability, automation, and secure infrastructure management. Deployed a scalable, load-balanced web app using EC2/ALB, built a serverless backend with Lambda, API Gateway, and DynamoDB; configured and mounted EFS; implemented least-privilege IAM roles; tested access controls across multiple environments; applied CI/CD with automated testing and monitoring using GitHub workflows.

Network Programmer at Winthrop University – Reliable Data Transfer (RDT) Protocol Simulator

Developed a Python implementation of rdt3.0 to ensure in-order, error-free delivery over an unreliable channel. Designed sender (EntityA) and receiver (EntityB) with checksums, ACK/NACK validation, retransmission timers, and sequence control. Simulated packet loss, corruption, and network delay; tested reliability with automated experiments and performance summaries; applied TCP/IP reliability principles within a UNIX-like simulation.

IT Support Technician at Carolina IT Solutions

Delivered Tier 1 technical support, improving issue resolution time and user satisfaction. Configured Azure VPN gateways and deployed Office 365 accounts; monitored and maintained Hyper-V VMs; automated repetitive tasks with PowerShell scripts; documented issues in a ticketing system; enhanced reporting accuracy.