Speakers
![Mary Grygleski](https://www.devtalks.ro/storage/Speaker/000/000/158/avatar/original/7ed8f0f3b707956d9fb1e889e11153e0aa0a854983081d262fbe5eede32da7ca.png)
Mary Grygleski
Senior Streaming Developer Advocate
DataStax
Mary is a Java Champion and a passionate Streaming Developer Advocate at DataStax, a leading data management company that champions Open Source software and specializes in Big Data, DB-as-a-service, Streaming, and Cloud-Native systems. She spent 3.5 years previously as a very effective advocate at IBM, focusing on Java, Jakarta EE, OpenJ9, Open Source, Cloud, and Distributed Systems. She transitioned from Unix/C to Java around 2000 and has never looked back since then. She considers herself a polyglot and loves to continue learning new and better ways to solve real-life problems. She is an active tech community builder outside of her day job, and currently the President of the Chicago Java Users Group (CJUG).