Aaron Pfeifer Email & Phone Number

Boston, MA, US

San Francisco, California, US

• Provided leadership, architecture direction, and core code contributions across the engineering organization. Helped drive major engineering initiatives, including:
• A data / reporting API built in GraphQL for internal and external customers
• Migrated reporting pipeline from Postgresql to Memsql to support more advanced reporting
• Supported the integration of products / tech from Tapjoy's acquisition of Tapdaq
• Unified data lake design across the organization
• ...in addition to many other smaller initiativesAlso drove multiple initiatives within the organization, including:

San Francisco, California, US

• Helped drive major engineering initiatives, including:
• A job processing system built on SQS
• A mobile device identification / management system
• A real-time reporting pipeline built on Spark, Kafka, Zookeeper, and Postgresql (5B messages / day)
• An A/B experiments framework
• Playable ad creative experiences

San Francisco, California, US

• Provided technical leadership, guidance, and project management for a team within the architecture group. Helped drive major engineering initiatives, including:
• A monitoring system / dashboard built on Sensu
• An analytics data pipeline built on RabbitMQ
• Published engineering blog posts and presented to RailsConf 2013 on monitoring systemManagement responsibilities included 1:1s, quarterly reviews, annual / quarterly goal setting, and recruiting /.

Cambridge, MA, US

• Helped lead the development of several large-scale Ruby- / Rails-based web applications. Acqui-hired by Tapjoy in July 2012.Technology focuses included: Javascript, Ruby, Rails, Chef
• Helped build a web-based community portal for digital goods creators
• Designed and built a Javascript framework for embedding widgets / distributing social games on third-party social networks
• Built an automated distributed load test library using Tsung

Cambridge, MA, US

• Provided design and engineering resources for contract work.
• Designed and built the website for private investment firm Stonepath Capital Partners

• Co-founded as part of a collegiate honors program project in 2006. Open-sourced much of the work that came out of the engineering effort.
• Built a web-based marketplace in Ruby on Rails for buying, selling, and sharing information
• Built the website for Altruistiq and the Altruistiq Exchange

Jacksonville, Florida, US

• Completed a 6 month co-op as part of a co-op requirement at the Rochester Institute of Technology. Primary developed desktop C# applications in support of the company's domain registration service.
• Built a distributed system to replace legacy Whois image capture software, including a(n):- Framework for monitoring and maintaining the internal health of an application and its environment- Workflow framework to.

Completed a 6 month co-op as part of a co-op requirement at the Rochester Institute of Technology. Primarily developed desktop C# applications in support of of the company's data entry workflow suite.• Added improvements to an internal web-based timesheet application in ASP.NET• Built algorithms for detecting patterns in OCR scans• Built a.