Jun Woo (John) Park

Ph.D Student
Computer Science Department
Carnegie Mellon Unversity

Email: junwoop 'at' cs.cmu.edu
Office: CIC 2220G and GHC 9227

Research Interest

I am a Ph.D student at School of Computer Science, Carnegie Mellon University advised by Greg Ganger. My general interests are in designing scalable systems for the cluster management and cloud computing. I am currently involved in the Cluster Scheduling project.


  • Bigger, Longer, Fewer: what do cluster jobs look like outside Google?
    George Amvrosiadis, Jun Woo Park, Gregory R. Ganger, Garth A. Gibson, Elisabeth Baseman, Nathan DeBardeleben
  • Stratus: virtual cluster scheduling in the public cloud
    Andrew Chung, Jun Woo Park, Gregory R. Ganger
  • 3Sigma: Distribution-based cluster scheduling for runtime uncertainty
    Jun Woo Park, Alexey Tumanov, Angela Jiang, Michael A. Kozuch, Gregory R. Ganger
    In Proc. of Eurosys'18, Porto, Portugal, April 2018
  • TetriSched: Global Rescheduling with Adaptive Plan-ahead in Dynamic Heterogeneous Clusters
    Alexey Tumanov, Timothy Zhu, Jun Woo Park, Michael A. Kozuch, Mor Harchol-Balter, Gregory R. Ganger
    In Proc. of Eurosys'16, London, UK, April 2016
  • Semidefinite Sketches for Multi-Dimensional Data Stream
    Jun Woo Park, Thomas Tauber-Marshall, Andrew Pavlo, and Alex Smola
  • Scaling Distributed Machine Learning with the Parameter Server
    Mu Li, Dave Andersen, Alex Smola, Junwoo Park, Amr Ahmed, Vanja Josifovski, James Long, Eugene Shekita, and Bor-Yiing Su
    In Proc. of OSDI'14, Broomfield, CO, USA, October 2014

Working Experience

  • May 2016 - August 2016 Intern, Two Sigma Investments LP
  • May 2014 - September 2014 Intern, Google Inc
  • March 2013 - June 2013 Software Engineer, KulCloud
  • March 2009 - March 2013 Financial Software Engineer, Korea Asset Pricing & Korea Ratings Co.(Formally Korea Bond Pricing & Korea Ratings Co.)


  • August 2013 - Present Ph.D in Computer Science, Carnegie Mellon University
  • December 2016 M.S in Computer Science, Carnegie Mellon University
  • August 2006 - May 2010 B.Sc (Hons.) in Electrical and Computer Engineering, Carnegie Mellon University

Past Life

In the past I have worked on various things, such as Distributed Systems for Machine Learning and Sketching Algorithms in the earlier days of my graduate school studies.

Even before that, I was working as a financial software engineer for a risk analysis and pricing of credit derivatives including Credit Default Swaps, Credit Linked Notes, and Synthetic CDOs, right after the financial crisis of 2008. This movie summarizes what I learned in first few days of my work.