Simon Fraser University

Staff Software Engineer at Twitter/MoPub Backend

San Francisco, California, United States

Twitter

Staff Software Engineer

Sr. Software Engineer - MoPub

Was involved in:

Designing and implementing the real time attribution system using:
-  Spark/Spark streaming for ingesting data from Kafka streams into Cassandra for data storage.
-  System was implemented using Scala.

Designing and implementing the new generation of Vungle Real Time Bidder:
-  Research and design for a reliable system
-  Implement the system in Erlang

Vungle

Senior Software Engineer - Ad Serving Lead

Worked on Vungle's adserving infrastructure:
-  NodeJS backend for serving ads.
-  Scala for caching mechanism.
-  Java for analytics and revenue calculation system.

Software Engineer

Responsible for architecting and implementing a highly scalable system for retargeting pixel tracking. The system was built using NodeJS and deployed on AWS.

Designed and implemented a custom reporting framework to report on large data sets. We designed a custom Query Language to pull reports out of our database. Project is built on top of the Spring Framework and Tomcat. Implementation includes Hive, Hadoop, and HP Vertica.
Experimented with Neo4J to represent our data graph model.

Sasan Hezarkhani