Khiem Ngo

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
  • Storage Systems
  • Consensus
Education

  • PhD in Computer Science

    Princeton University

  • MA in Computer Science

    Princeton University

  • BComp in Computer Engineering

    National University of Singapore

Experience

 
 
 
 
 
Meta Platforms, Inc.
Software Engineer
Datadog, Inc.
New York, NY
 
 
 
 
 
Meta Platforms, Inc.
Research Scientist
Meta Platforms, Inc.
Menlo Park, CA
 
 
 
 
 
Princeton University
Graduate Research Assistant
Princeton University
Princeton, NJ
 
 
 
 
 
Facebook, Inc.
PhD Software Engineer Intern
Facebook, Inc.
Seattle, WA

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

Featured Publications

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

Replicated state machines are linearizable, fault-tolerant groups of replicas that are coordinated using a consensus algorithm. Copilot replication is the first 1-slowdown-tolerant consensus protocol: it delivers normal latency despite the slowdown of any 1 replica.
PDF Code Project Slides Video TR

Recent Publications

Quickly discover relevant content by filtering publications.
Khiem Ngo. Tolerating slowdowns in replicated state machines. PhD Dissertation, Princeton University, 2021.
PDF Project
Khiem Ngo, Haonan Lu, Wyatt Lloyd. K2: Reading quickly from storage across many datacenters. DSN, 2021.
PDF Project Slides
Haonan Lu, Christopher Hodsdon, Khiem Ngo, Shuai Mu, Wyatt Lloyd. The SNOW theorem and latency-optimal read-only transactions. OSDI, 2016.
PDF Project
See all publications

Contact

  • khiem AT khiemn DOT com