David Escobar Ruiz Email & Phone Number

Antioquia, Colombia

Florida, Estados Unidos

* Trained a model via E2E RLHF rating.* Reviewed other ratings from trainers within the company.* Guided an LLM model through an EDA and further analysis process for answering user’s queries based on provided data in a .csv file.* Instructed an LLM model to use Pandas, Matplotlib, and Numpy to gather insights from data.

- Analyzed relationships among purchase orders from a public dataset.- Created an ELT pipeline using Airflow for loading and transforming the available data relationships.- Written SQL queries and Python functions for analyzing tabular data.- Created a model to predict whether a customer will repay its debt.- Handled datasets with thousands of rows and columns.- Applied Random Forest and LightGBM machine learning algorithms.- Used pipelines to streamline the end-to-end ML process.- Did Load/Stress testing with Locust.- Created unit tests with Python and the unittest package.- Created an API with Flask that can receive images and return a prediction about the content of the image.- Trained a Machine Learning model that can classify the sentiment of movie reviews.

Medellín, Antioquia, Colombia

- Helped as a Java Developer in developing and maintaining a system for product-pricing using ML algorithms and multiple services built over Salesforce.- Maintained microservices and monolith-based systems in Java.- Manipulated databases with PostgreSQL.- Developed frontend components using JavaScript and Salesforce Apex.- Developed a custom gradle plugin for the generation of microservice documentation using the Swagger framework.- Implemented new endpoints for Dropwizard-based microservices.- Presented the demo of a previously developed custom gradle plugin to more than 100 developers around the world.

- Used Logistic Regression, Random Forest, and XGBoost models to predict the future performance of regions in Colombia based on education programs provided by MinTIC (Colombia's ministry of Technology).- Used Python libraries to perform an EDA of regional data provided by MinTIC.- Created a frontend-layer with Angular and JavaScript for a custom dashboard to explore regional data.

Medellín, Antioquia, Colombia

- Created automation scripts with Python and Selenium for automating data loading and transformation tasks.- Used OpenCV for extracting financial data from images.

Matemático

* Discrete Mathematics mentor for "Antivirus para la Deserción" program.

Ingeniería De Sistemas E Informática, Computer Science