Janusz Slawek
Staff Software Engineer at Calltree AI
San Francisco Bay Area United States
Summary
👤
Senior🎓
Top SchoolJanusz Slawek is a Staff Software Engineer with 13 years of experience building production-grade systems across finance, cloud, consumer, and AI startups from the San Francisco Bay Area. He has designed Internet-scale backends at Apple, led planetary-scale ETL for EC2 at AWS, architected cross-cloud data persistence and cost optimizations at Intuit Mailchimp, and now shapes voice AI and unified customer data at Calltree AI. Comfortable from low-level infrastructure to ML-driven products, he combines hands-on coding (Python, Java, Kafka, Kubernetes, Terraform) with technical leadership and on-call ownership. His PhD work produced novel ensemble-learning algorithms for genomics that earned departmental awards, a signal of his ability to turn research into practical, performant systems. Notably, he has a track record of translating scattered operational data into single sources of truth and delivering measurable cost and reliability improvements.
13 years of coding experience
14 years of employment as a software developer
Doctor of Philosophy (Ph.D.), Engineering, Doctor of Philosophy (Ph.D.), Engineering at Virginia Commonwealth UniversityMaster's Degree, Computer Science, Master's Degree, Computer Science at AGH University of Krakow
English, Polish
Github Skills (1)
trading10
Programming languages (1)
Github contributions (5)
slawekj/wolf
Jun 2014 - Oct 2014
platform for trading on foreign exchange market
Contributions:121 commits in 4 months
trading
slawekj/ennet
Jun 2013 - Mar 2014
Contributions:50 commits in 8 months
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