Ios Kotsogiannis

Ios Kotsogiannis builds data-governance systems as a principal engineer at DoorDash. His earlier privacy work at Snap and Duke includes production friend recommendations and PrivateSQL, a system for querying relational data with differential privacy.

Career

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Based in: Santa Monica

DoorDash

Until Present

Principal Engineer

Focuses on data governance.

DoorDash

Jun 2026 — Present

Principal Engineer

Snap

Manager, Privacy Engineering
May 2024 — Jun 2026
Snap Inc. · Los Angeles, California, United States
Privacy Engineer Technical Lead
Sep 2022 — Jun 2026
Snap Inc. · Los Angeles, California, United States
Privacy Engineer
Sep 2019 — Sep 2022
Snap Inc. · Los Angeles, California, United States

Duke University

Ph.D. in Computer Science

University of Patras

Products & media

vldb.org

PrivateSQL: A Differentially Private SQL Query Engine

Ios and his coauthors present a relational query engine that answers analytical workloads while enforcing a fixed differential-privacy budget.

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Ios Kotsogiannis

DoorDash

DoorDash

Snap

Manager, Privacy Engineering

Privacy Engineer Technical Lead

Privacy Engineer

Duke University

University of Patras

Products & media

PrivateSQL: A Differentially Private SQL Query Engine

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