tzalex

Built data ingestion pipelines for ActionIQ, a NYC-based client. { Python, Scala, Spark, SQL. Rebuilt a React Native app as native iOS from scratch. { Swift, UIKit. Developed ML models for stock volatility prediction; automated company procedures using operational research. { Keras, scikit-learn, OR-Tools.

Applied ML on streaming maritime sensor data. { Python, Docker. Maintained and improved a conversational chatbot application.

Developed and deployed APIs, processing modules and ML models. { Python, Docker, PostgreSQL. Built KPI dashboards; optimized database query performance.