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Sean Grayson

Staff Software Engineer

Staff Software Engineer at Attentive

New York, New York

Section title

Sean Grayson's Email Addresses & Phone Numbers

Sean Grayson's Work Experience


Staff Software Engineer

Greater New York City Area


Senior Software Engineer

May 2017 to January 2019

Greater New York City Area


Software Engineer

July 2014 to May 2017

Greater New York City Area

Sean Grayson's Education

University of California, Santa Barbara

BS, Computer Science

2006 to 2010

Sean Grayson's Professional Skills Radar Chart

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52% Left Brained
48% Right Brained

Sean Grayson's Estimated Salary Range

About Sean Grayson's Current Company


Frequently Asked Questions about Sean Grayson

What company does Sean Grayson work for?

Sean Grayson works for Attentive

What is Sean Grayson's role at Attentive?

Sean Grayson is Staff Software Engineer

What is Sean Grayson's personal email address?

Sean Grayson's personal email address is s****[email protected]

What is Sean Grayson's business email address?

Sean Grayson's business email addresses are not available

What is Sean Grayson's Phone Number?

Sean Grayson's phone (212) ***-*413

What industry does Sean Grayson work in?

Sean Grayson works in the Computer Software industry.

Who are Sean Grayson's colleagues?

Sean Grayson's colleagues are Amir Majedi, Christopher Pate, Maddie Elkus, Grant Miiller, Adam Ouellette, Marques Mayoras, Jamell Watson, Ethan Lo, Megan Miller, and Justin Yeh

About Sean Grayson

đź“– Summary

Staff Software Engineer @ Attentive Greater New York City AreaSenior Software Engineer @ Attentive From May 2017 to January 2019 (1 year 9 months) Greater New York City AreaSoftware Engineer @ Twitter Continuing work on the TapCommerce platform.Notable Projects:• Led development in the revamped dynamic ad server. Taking advantage of our retargeting data on users and client APIs, this service displays ads to the end users that represent offers or products that user has interacted with in the past.• Led development in adding Video support to our real-time bidder using VAST 2.0• Converted large-scale Hadoop reporting jobs from using Hive queries to MapReduce applications, improving performance and speed by about 2x (6x in one instance).• Developed data migration service to transfer currently relevant data from our Hadoop cluster to our Redis in-memory cache using MapReduce. The reducers write to Redis directly. From July 2014 to May 2017 (2 years 11 months) Greater New York City AreaSoftware Engineer @ TapCommerce by Twitter in July 2014 From March 2014 to July 2014 (5 months) Greater New York City AreaComputer Programmer @ Yardi Systems Programmer for the P260 portal Tomcat website used by HUD• Worked with Yardi's Java XML parsing framework used to generate every page seen on website• Wrote and optimized scheduled stored procedures and queries in the Oracle database• Constructed reports and information screens using the XML parsing framework, JavaScript, and SQL• Scorecard web tool to measure the performance of Asset/Field Service Managers for HUD• Java application which parsed and compared data between our database and exported data from Hewlett-Packard. From February 2011 to May 2012 (1 year 4 months) Santa Barbara, California AreaComputer Programmer @ UCSB Earth Research Institute Worked at NEES (Network for Earthquake Engineering Simulation)Wrote software for the NEES branch at UCSB• Optimized and automated data batch processing jobs written in Perl, C, and Bash• Implemented and fixed JavaScript applications for their website From November 2010 to February 2011 (4 months) Santa Barbara, California AreaSoftware Engineer @ TestFlight Acquired by Apple in Feb 2014.FlightPath• Back-end engineer for the FlightPath real-time analytics mobile product utilizing Kafka for event ingestion, Storm as the ETL, Cassandra for persistence, and Elastic Search as the application level searching.• Led development of the Elastic Search Tomcat query client. This fed the analytics dashboard.• Built the disaster recovery, data migration, and monitoring tools for FlightPath - Kafka consumer raw data storage backup, tools to replay data from Kafka or Cassandra to Elastic Search, ZooKeeper consumer offset monitoringOther notable projects:• Designed the ETL for a TestFlight data warehouse using the Hadoop ecosystem. Flume would push events to HDFS, with Hive queries and MapReduce jobs processing and sending aggregate data to MySQL From May 2012 to February 2014 (1 year 10 months) Greater Los Angeles Area

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In a nutshell

Sean Grayson's Personality Type

Introversion (I), Sensing (S), Thinking (T), Perceiving (P)

Average Tenure

1 year(s), 5 month(s)

Sean Grayson's Willingness to Change Jobs



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