Karthik Subbian — CTO
Visionary technology leader with 20+ years of experience building and scaling ML and AI systems at Amazon, Meta, and IBM. I specialize in working backward from customer needs to invent and deploy large-scale systems that drive measurable impact — from reimagining search and discovery experiences that delivered over billions in conversion, to transforming retail operations with agentic AI. My work spans GenAI, causal inference, deep learning (GNNs, transformers), and multi-objective optimization. I’ve shaped company-wide ML strategy, mentored senior ICs, and led cross-functional teams across science, engineering, and product. 50+ publications, 20 patents, and a passion for connecting research with real-world outcomes.
Stackforce AI infers this person is a leader in AI and ML technologies with extensive experience in B2B and B2C applications.
Location: San Francisco, California, United States
Experience: 23 yrs
Skills
- Artificial Intelligence
- Machine Learning
Career Highlights
- 20+ years of experience in ML and AI systems.
- 50+ publications and 20 patents.
- Expert in connecting research with real-world outcomes.
Work Experience
Distinguished Scientist (7 mos)
Webconf 2024
Web Mining Track Chair (7 mos)
IEEE Data Engineering Bulletin
Associate Editor (3 yrs 3 mos)
ACM SIGKDD & Annual KDD Conference
Area Chair (8 mos)
KAIS Journal
Associate Editor (3 yrs 6 mos)
WSDM 2023 Conference
WSDM Sponsorship Chair (7 mos)
Amazon
Sr. Principal Scientist (3 yrs 7 mos)
Principal Scientist (3 yrs 11 mos)
SIGIR
SIGIR 2021 Industry Track Chair (0 mo)
Frontiers in Big Data Journal
Associate Editor (4 yrs 7 mos)
KDD 2022
KDD Cup Chair 2022 (0 mo)
TheWebConf 2021
WWW 2021 Workshops Chair (0 mo)
IEEE Transactions of Knowledge Discovery and Data Mining
Associate Editor (5 yrs 11 mos)
Research Scientist (4 yrs)
IBM
Technical Staff Member (4 yrs)
Staff Software Engineer (7 yrs)
Education
Doctor of Philosophy (PhD) at University of Minnesota
Master of Science (M.S.) at Indian Institute of Science (IISc)
Bachelor of Technology (B.Tech.) at Pondicherry University