Ivan Romero

• Mentored and led a team of 3 engineers on Django/FastAPI/REST API development, delivering 5+ production microservices for a major Spanish banking client.

• Evolved Python orchestration platform using event-driven architecture to coordinate business logic across 10+ microservices (including data-intensive ML pipelines), reliably processing 100,000+ documents daily.

• Designed and deployed a High Availability MySQL cluster with automatic failover for a critical authentication service, reducing recovery time from hours to under one minute.

• Owned the end-to-end deployment lifecycle with weekly microservice releases on Linux using Docker, Nginx, CI/CD pipelines and automated testing with PyTest.

• Led the development of real-time CNN-based document classification models processing 30,000+ documents daily for a major Spanish bank, reducing manual document handling by 80%.

• Engineered NLP and NER pipelines that increased automated invoice information extraction from 60% to 70% at 99% accuracy, saving 35 manual hours per week across workflows processing 5,000+ documents daily.

• Audited and improved production ML models in banking workflows, maintaining misclassification rates below 1% through model evaluation, dataset refinement, and performance monitoring.