Hamidreza Zare Email & Phone Number

Gaithersburg, Md, Us

Sunnyvale, California, United States

State College, Pennsylvania, United States

Introduction to Systems Programming (CMPSC311)Instructed by Dr. Patrick McDaniel.

State College, Pennsylvania, United States

Public clouds are an ever-emerging technology solution to users' needs of computing engines and storage services. Having several big public cloud providers, each offering a broad range of VM options with different price structures, presents the users with a bewildering choice of VM types. A poor choice of VMs can have significant implications on performance and costs. Moreover, storage services that present a linearizable memory consistency model to users are an essential sub-class of storage… Show more Public clouds are an ever-emerging technology solution to users' needs of computing engines and storage services. Having several big public cloud providers, each offering a broad range of VM options with different price structures, presents the users with a bewildering choice of VM types. A poor choice of VMs can have significant implications on performance and costs. Moreover, storage services that present a linearizable memory consistency model to users are an essential sub-class of storage services. There are several methods based on replication and erasure coding to implement these storage systems, bringing more options for users to pick.My colleagues and I developed an optimization framework to compute the near-optimal configuration among replication and erasure coding as well as among various data center placements based on the public cloud pricing structure and characteristics of the workload. Furthermore, we developed a cost-effective geo-distributed linearizable key-value store over the public cloud that uses our optimization framework to periodically compute the optimal configuration and reconfigure the key-value store to the found configuration in order to capture dynamism in workloads' characteristics while maintaining linearizability. The thesis is available at https://etda.libraries.psu.edu/catalog/27010hkz5146.We have developed the optimizer in Python3 and the key-value store in C++11. Our key-value store leverages RocksDB for its persistent storage needs. It has been tested over nine datacenters in Google Cloud Platform. The source code is available at https://github.com/shahrooz1997/LEGOstore. Show less

State College, Pennsylvania, United States

Distributed systems (CSE513)Instructed by Prof. Bhuvan UrgaonkarI created and managed two projects for the course depicting and solidating Multi-Paxos, linearizability, and causal consistency model for the students

Sunnyvale, California, United States

As a software engineer intern in the Platform team, I am designing and implementing methods to edit the VMs on AWS and GCP that run YugabyteDB without interruption to the clients' operations.

State College, Pennsylvania, United States

Introduction to Systems Programming (CMPSC311)Instructed by Dr. Patrick McDaniel.

Tehran, Iran

The company was developing an infrastructure based on LoRaWAN to offer IoT services. My responsibility was to customize the device authentication code in loraserver.io (an open-source LoRa server stack) to use their own protocol.

Master Of Science - Ms, Computer Science And Engineering, 3.86

Research: I am working on cost-efficient geo-distributed storage systems leveraging both replication and erasure coding under.

Bachelor'S Degree, Computer Engineering - Hardware, 18.73/20 (3.94/4)

I had the opportunity to work under the supervision of Professor Hamid Sarbazi-Azad in HPCAN lab at Sharif University. I worked on a new.

Mathematic And Physics, 19.44/20