>Professional Work Experience - Software & AI Enginner

Sistecrédito

Envigado, Colombia

Data Scientist Intern

December 2024 – May 2025

•Fine-tuned LLMs (Meta Llama 3.1, DeepSeek R1) for automated PQRSF classification across 50+ categories, achieving 80% accuracy and reducing up to 28 hours of weekly manual classification work

•Developed multi-agent system with LangChain and Azure OpenAI GPT-4.1 for payment negotiations, resulting in 20% increase in payment commitments through voice-enabled customer interactions

•Built WebSocket-connected Next.js demo application enabling internal testing by non-technical teams and providing feedback metrics to analytics team

•Implemented Azure AI Document Intelligence for legal document processing, achieving 98% accuracy and significantly reducing reading time for 20+ page documents

•Maintained PowerBI dashboards for production monitoring, reducing engineering and governance team supervision time through automated insights

Manacle

Medellín, Colombia

Full Stack Developer

May 2024 – April 2025

•Led development of Devento, a pioneering comprehensive SaaS platform for event management in Colombia, currently being adopted by Medellín's establishments

•Built scalable full-stack solution using React Native, Expo, Next.js, and FastAPI, supporting complex event workflows and real-time operations

•Developed innovative CMS enabling CRUD operations, analytics, and QR-based ticketing - a breakthrough solution in Colombia's traditionally local software market

•Engineered robust RESTful APIs and database architecture, automating SaaS operations and reducing manual technical intervention

•Implemented Docker containerization with Coolify for automated CI/CD deployments