- Built custom data processing pipelines using Python, PySpark and Databricks to facilitate space-aware and assortment optimization of thousands of products and stores using machine learning. This helped clients like Coke and Molson Coors to make more informed decisions when planning their assortment and save hundreds of thousands of hours of human effort.- Built data processing pipelines for detecting anomalies in thousands of optimized planograms.- Increased monitoring and observability for the existing data processing pipelines to easily maintain them and detect bugs.

- Built tools for Divvy’s internal teams to automate their day-to-day operations and help them movefaster.- Rebuilt the home offer origination tool and ported it to the mobile app using React Native.- Migrated large parts of the codebase written in Node.js to TypeScript.

- Designed and developed highly available scalable distributed systems for building phone experiencesto transform the way real estate agents connect with home buyers.- Built the groundwork to migrate event-based systems from Kinesis to Kafka using DynamoDB andPython.- Developed APIs and CLI tools to manage and deploy hundreds of thousands of programable phonenumbers used for lead generation.- Designed and implemented solutions for reducing telephony costs. This translated in hundreds of thousands of dollars in savings per month.- Tech-led multiple initiatives that generated millions of dollars of annualized revenue.

- Rebuilt the Zap CRM and migrated it to architecture using Node.js, AngularJS, Java and MySQL.- Built features to allow Realogy to monetize leads for real estate agents and generate millions ofdollars in revenue.- Zap is a real estate CRM owned by Realogy Holdings Corp. and used by world-renowned real estate brands like Coldwell Banker, ERA, Century 21 and Better Homes and Gardens.

- Rebuilt Trulia’s home page and made performance improvements to the backend. This allowed the website to load 2x faster.- Rebuilt Trulia’s Local Info pages to incorporate a refreshed UI and a more efficient templating engine in the backend.- Rebuilt Trulia’s email notifications, solved mobile client compatibility issues and migrated them to a queue-based architecture.

- Rebuilt and owned the checkout functionality of the Linio website and laid the foundations for creating reusable UI components using PHP, MySQL, JavaScript and HTML5.- Led a small team of engineers to build a mobile version of the website.- Linio is one the most successful e-commerce sites in Latin America, and it’s present in Mexico, Colombia, Perú and Venezuela.

Developed custom point-of-sale systems and websites for small businesses and non-profit organizations.Tech stack: Python, MySQL, HTML5, CSS3 and JavaScript.

Designed and implemented a web application for Scotiabank Mexico to keep track detailed information about non-functional tests performed on the consumer-facing applications of the bank. This system provided detailed information about tests performed and results to stake holders.Tech stack: Python, Django, HTML5, CSS3, JavaScript, PostgreSQL, MongoDB.

- Rebuilt the main university website and managed the websites from other departments.- Improved the client-side experience by solving cross-browser and device compatibility issues, and reduced the page loading time more than fifty percent.