Julio Anthony Leonard

Machine Learning Engineer

GoJek•  January 2020 - Present

Leveraging cloud solutions In AI and ML, MLOps for Gojek data scientist, and foreman for resolving Data Scientist tech issues. Contributed to: Clockwork: Build and maintain a scalable airflow-backed platform, runs 1000 ETL and model building jobs on a daily average. FinOps: Cloud financial management, build a system to track and reducing costs for machine learning systems. Experimentation Platform: an experimentation platform to easily do switchback and AB test, I contributed in improving the reliability by migrating to cloud, Kubernetes, improving monitoring and logging, improving latencies. Merlin: Merlin is an open-source machine learning platform that enables data practitioners to deploy models in 10 minutes rather than 2 months. Help improving reliability, and bugfix. Feast: Feast is a feature store to enable data practitioners to reuse features rather than rebuilding features. Contributed to building the metadata for labeling. Read more: https://www.gojek.io/blog/an-introduction-to-gojeks-machine-learning-platform

Product Engineer

GoJek•  November 2018 - February 2020

Worked with Core Platform team to build Gojek Platform tools that handle in-app authentication, communication services, and customer orders. Developed chat backend that replaced third-party chat backend. Reduced cost by $4,000,000/year, and enabled the company to create features faster without depending on third-party. Reduced chat errors from 4% to <0.1% by re-architecture. Implemented 4+ new features for chat, including image sharing, third-party message sending, automated message, bot to improve in-app user experience. Maintained push notification system with around 500,000 throughputs per minute, active booking service system, and inbox for Gojek app.

Institut Teknologi Sepuluh Nopember, Surabaya

Information Technology, BE•  August 2013 - March 2018

Times Higher Education rank 64 in Impact assessment. Top 5 Indonesian University, focused on engineering. I am focusing on data science, data mining, machine learning, and NLP classes