Joaquin Orozco

Ya Está Pago is a platform for merchants in Colombia that confirms in real time whether a customer’s transfer has actually arrived, instead of trusting a screenshot at the counter. It reads bank notifications (Nequi, Bancolombia, Daviplata), extracts the transaction data from payment receipts with OCR and AI, and integrates with WhatsApp so businesses can operate from the channel they already use.

It is an ecosystem of independent services that talk over a documented REST API: an Angular web dashboard, a NestJS API on MongoDB, an OCR pipeline using AWS Textract plus an OpenAI model that structures the data, and notifiers for Android (Flutter) and Windows (.NET). It is orchestrated with Docker Compose and deployed on AWS Elastic Beanstalk with per-service CI/CD.

A machine that dispenses cookies automatically, designed and built for a bakery company in Santander, Colombia. The project covered mechanical design in CAD, electronics and embedded firmware in C++.

It was developed as a team with Carlos Ballesteros, going from design renders to a machine that produces real cookies.

A double-cuvette inclined tipping-bucket rain gauge for measuring runoff, developed as part of a research project. Five devices were built.

The units were installed at Nevado del Ruiz to verify their operation in the field. It was developed together with Carlos Ballesteros and Lis Adrián Morales.

A mobile app created for the integrals competition, built with App Inventor. It was developed together with Carlos Ballesteros and Alejandra Zuleta.