Sultan Mahmud Sajal

smsajal116@gmail.com · +1-814-380-3595

I am currently working as a Performance Engineer (Core Storage Systems) at NetApp. Previously, I worked as a Performance and Capacity Engineer for Meta Platforms, Inc.. I received my Ph.D. in CSE from Pennsylvania State University where I was advised by Dr. Timothy Zhu and Dr. Bhuvan Urgaonkar. My thesis focuses on improving the fidelity of using real-world traces in cloud systems experiments. I have published works in top systems conferences (EuroSys '24 and '21, OSDI '23) and have internship experiences at Microsoft Research and Gray Systems Lab (GSL), Microsoft.

News

  • I have started working as a Performance Engineer at Netapp [ January, 2026 ].
  • I have started working as a Performance and Capacity Engineer at Meta Platforms, Inc. [ May, 2024 ].
  • Silver Medal Icon TraceUpscaler received Runner up Paper Award at EuroSys 2024 [ April, 2024 ].
  • Silver Medal Icon Successfully defended my Ph.D. thesis [ April, 2024 ].
  • Our work TraceUpscaler got accepted into EuroSys 2024 [ September, 2023 ].
  • Our work Kerveros got accepted into OSDI 2023 [ March, 2023 ].
  • Worked as a Research Intern in Cloud Operations Research (CORE) - MSR mentored by Luke Marshall and Beibin Li [ May,2022 - August,2022 ].
  • Passed my comprehensive exam. I am officially a Ph.D. Candidate now! [ December, 2021 ]
  • Worked as a Research Intern in Gray Systems Lab (GSL) mentored by Abhishek Roy and Joyce Cahoon[ May 2021 - August, 2021 ].
  • Our work TraceSplitter got accepted into EuroSys 2021 [ January, 2021 ].
  • Passed my Ph.D. Qualifier Exam [ February, 2020 ].

Education

The Pennsylvania State University

Ph.D. in Computer Science and Engineering
Department of Computer Science and Engineering
August, 2018 - May, 2024

Bangladesh University of Engineering and Technology

Bachelor Of Science in Computer Science and Engineering
Department of Computer Science and Engineering
February, 2013 - September, 2017

Experience

NetApp

Performance Engineer (Core Storage Systems)
January, 2026 - Present

Meta Platforms, Inc.

Performance and Capacity Engineer
May, 2024 - January, 2026

Cloud Operations Research (CORE), Microsoft Research

Research Intern
May, 2022 - August, 2022

Gray Systems Lab (GSL), Microsoft

Research Intern
May, 2021 - August, 2021

The Pennsylvania State University

Research Assistant / Teaching Assistant
August, 2018 - May, 2024

Reve Systems

Junior Software Engineer
October 2017 - July 2018

Publications

TraceScaler: A Framework for Scaling Load in Real-World Traces for System Evaluation

Sultan Mahmud Sajal, Md Salman Estyak, Rubaba Hasan, Timothy Zhu, Bhuvan Urgaonkar, Siddhartha Sen
ACM Transactions on Computer Systems (ACM TOCS 2025)
[Paper]

TraceUpscaler: Upscaling Traces to Evaluate Systems at High Load

Sultan Mahmud Sajal, Timothy Zhu, Bhuvan Urgaonkar, Siddhartha Sen
Silver Medal Icon Runner up Paper Award
Nineteenth European Conference on Computer Systems (EuroSys 2024)
[Paper] [Slides] [Code]

Kerveros: Efficient and Scalable Cloud Admission Control

Sultan Mahmud Sajal, Luke Marshall, Beibin Li, Shandan Zhou, Abhisek Pan, Konstantina Mellou, Deepak Narayanan, Timothy Zhu, David Dion, Thomas Moscibroda, Ishai Menache
17th USENIX Symposium on Operating Systems Design and Implementation (OSDI 2023)
[Paper] [Slides] [Video]

TraceSplitter: A New Paradigm for Downscaling Traces

Sultan Mahmud Sajal, Rubaba Hasan, Timothy Zhu, Bhuvan Urgaonkar,Siddhartha Sen
In Proceedings of the Sixteenth European Conference on Computer Systems (EuroSys 2021)
[Paper] [Video] [Code]

Awards

  • Silver Medal Icon Runner up Paper Award, European Conference on Computer Systems (EuroSys). [2024]
  • Student Grant, European Conference on Computer Systems (EuroSys). [2024]
  • Student Grant, USENIX Symposium on Operating Systems Design and Implementation (OSDI). [2023, 2020]
  • Registration Grant, SIGMETRICS. [2020]
  • Student Travel Grant, ACM Symposium on Cloud Computing (SoCC).[2019, 2018]
  • Technical Scholarship, Bangladesh University of Engineering and Technology [2013]

Miscellaneous