Khiem Ngo

Software Engineer

Datadog, Inc.

Biography

I'm a software engineer focused on large-scale distributed systems and backend infrastructure. I currently work at Datadog, building reliable, scalable systems for metrics ingestion. Previously at Meta, I worked on infrastructure for Marketplace ranking and blockchain systems.

I received my PhD in Computer Science from Princeton University, where I studied distributed systems, including consensus protocols and storage systems.

Interests

Distributed Systems
Backend Infrastructure
Reliability & Fault Tolerance
Observability

Education

PhD in Computer Science

Princeton University
MA in Computer Science

Princeton University
BComp in Computer Engineering

National University of Singapore

Experience

Software Engineer

Datadog, Inc.

New York, NY

Research Scientist

Meta Platforms, Inc.

Menlo Park, CA

Graduate Research Assistant

Princeton University

Princeton, NJ

PhD Software Engineer Intern

Facebook, Inc.

Seattle, WA

Featured Publications

Christopher Hodsdon, Zijian Qin, Khiem Ngo, Siddhartha Sen, Ethan Katz-Bassett, Wyatt Lloyd. Avicenna: Masking Slowdowns in Replicated State Machines with Counterfactual Evaluation. EuroSys, 2026. 🏆 Best Paper Award

Khiem Ngo, Siddhartha Sen, Wyatt Lloyd. Tolerating slowdowns in replicated state machines using Copilots. OSDI, 2020.

Khiem Ngo, Haonan Lu, Wyatt Lloyd. K2: Reading quickly from storage across many datacenters. DSN, 2021.

Haonan Lu, Christopher Hodsdon, Khiem Ngo, Shuai Mu, Wyatt Lloyd. The SNOW theorem and latency-optimal read-only transactions. OSDI, 2016.

See all publications

Projects

Tolerating Slowdowns in Replicated State Machines

Khiem Ngo, Siddhartha Sen, Wyatt Lloyd

Reading Quickly from Storage Across Datacenters

Khiem Ngo, Haonan Lu, Wyatt Lloyd

Supporting Zoomable Video Streams

Khiem Ngo, Guntur Ravindra, Axel Carlier, Mukesh Saini, Cong Pang, Wei Tsang Ooi

Contact

khiem AT khiemn DOT com