Jakub Czarnowicz
Senior Software Engineer
Brooklyn,New York
Overview
2026
2026
years of professional experience
Work History
Software Engineer
Google Search AI
2022.07 - Current
- Spearhead traffic classification for LLM-powered page organization ("Web Guide"), delivering a query classifier that improved precision metrics by 16x in user studies.
- Orchestrate the end-to-end delivery of page composition algorithms serving 1B+ daily queries, successfully optimizing 'Time to Good Interaction' and driving measurable query growth.
- Execute a global migration of feature construction infrastructure affecting 55% of daily search traffic; seamlessly onboarded 30+ features with zero quality regression and significant latency reductions.
Software Engineer
Google Cloud
2018.05 - 2022.07
- Developed core components of a distributed event streaming platform for VM state data and predictive recommendations, a critical dependency for Cloud Autoscaling.
- Enabled third-party integration by designing and implementing secure user and group authorization mechanisms for the Autoscaling API.
- Achieved sub-100ms recommendation latency by building a custom distributed load-testing system, identifying bottlenecks, and optimizing code to unblock the global launch.
- Owned the productionization lifecycle, including turn-up automation, routing configuration, and alerting strategies, ensuring a safe and stable system release.
Machine Learning Engineer
Fornax
2017.09 - 2018.05
- Engineered large-scale ML pipelines using Spark and Scala to predict user behavior on retail websites based on real-time event streams.
- Deployed containerized solutions (Hadoop) and managed HBase datastores for high-throughput data processing.
Co-Founder
MNS Lab
2014.01 - 2016.09
- Led a 6-person engineering team using Agile methodologies to build and ship a Polish government tender search engine.
- Built the full-stack web service, including an automated crawler, parser, and personalized notification system.
- Established foundational business operations and successfully launched the product from zero to market.
Software Engineering Internships
Google & Meta
- Software Engineering Intern | Google Ads (London): Built an automated ML system for ad-spam detection, saving $100k+ annually by flagging bad agents pre-launch.
- Software Engineering Intern | Facebook (Menlo Park): Implemented a new "Pages" feature from scratch using Hack/PHP and internal distributed systems.
- SRE Intern | Google (Zurich): Deployed backend services and testing frameworks for Google Hangouts using Go and Java.
Education
Master’s Coursework - Theoretical Computer Science
Jagiellonian University
Kraków, Poland 2001.05 -
Bachelor of Science - Theoretical Computer Science
Jagiellonian University
Kraków, Poland 2001.05 -
Timeline
Software Engineer
Google Search AI
2022.07 - Current
Software Engineer
Google Cloud
2018.05 - 2022.07
Machine Learning Engineer
Fornax
2017.09 - 2018.05
Co-Founder
MNS Lab
2014.01 - 2016.09
Master’s Coursework - Theoretical Computer Science
Jagiellonian University
2001.05 -
Bachelor of Science - Theoretical Computer Science
Jagiellonian University
2001.05 -
Software Engineering Internships
Google & Meta