Hi! I'm Juan, a Trust & Safety Engineer at Bitly and writer. My role at Bitly involves creating to ensure the quality of the links created or clicked by the users. Before Bitly, I was a Data Engineer (Payment Fraud Officer) at LOVOO, a dating and social app based in Germany. As part of the Moderation team, I was responsible for the development of the anti-fraud services and solutions that detect to prevent the execution of fraudulent transactions within apps' economy.

Previously, I spent around 14 months traveling around the world while writing. During this time, I wrote and released a book titled Practical TensorFlow.js (Apress, 2020). Moreover, I wrote writing data-related content for several companies. As a personal project, I created a series named Wander Data, in which I logged, relived, and told my travel stories through data.

Before my adventure, I worked as a Big Data and Machine Learning Engineer (also) at LOVOO. Back then, I was part of the Antispam team, where my role involved writing software and designing systems around data and machine learning to detect spammers and scammers in the platform and avoid their proliferation.

From the data field, my areas of preference include working on the complete pipeline of the machine learning system - prototyping, feature selection, and engineering, and training - to make it ready for production. Furthermore, I am fascinated by finding new ways to quantify several aspects of my life through data, and of course, writing and presenting the results. Other areas of interest are unsupervised learning, object detection, and moderation (spam and fraud prevention).

Lastly, I have to say I love speaking publicly and sharing knowledge about what I do (or did) at work and about my projects. So, if you're organizing an event and would like to host me, I'd be more than grateful to join.

My hobbies are photography, bouldering, and writing.