Founder Profile
Sanjay Jeyakumar
Last reviewed: September 2026 · By Swet Parvadiya
Who is Sanjay Jeyakumar?
Sanjay Jeyakumar is a founder of Abnormal AI, which was founded in 2018 with Evan Reiser.
- Company founded
- Abnormal AI
- Founded
- 2018
- Co-founders
- Evan Reiser
Background
Jeyakumar was a founding engineer at TellApart, which Twitter acquired, and earlier a lead engineer at Google working on search technology and the launch of Android.
Founding Story
Sanjay Jeyakumar co-founded Abnormal in 2018 and was its CTO when the company launched in 2019. Before Abnormal he was the systems architect at Twitter responsible for the distributed data processing and machine learning systems behind Twitter's business. (Exact birth year remains publicly undisclosed).
Sources
This profile does not yet cite a source specific to Sanjay Jeyakumar. The sources below document the company company rather than the person, so check them against the claims above.
- Abnormal Security launches with $24M Series A from Greylock (2019) (Abnormal AI)
- Greylock: Our investment in Abnormal (Abnormal AI)