Patrick Granahan
Senior Software Engineer at Rippling
United States
Overview
Work Experience
Senior Software Engineer
2024 - Current
Building alongside an exceptional team!
Rippling is the workforce management platform that unifies HR, IT, finance, and more.
Raised $1,987,000,000.00 from Dragoneer Investment Group, Coatue, Greenoaks, Founders Fund and Bossa Invest.
Senior Software Engineer
2021 - 2023
Helped build out a platform for venture investors to make better, more quantitative investment decisions. Also lead a number of seed stage investments.
Goodwater Genesis seeks out exceptional entrepreneurs and helps them cultivate the success they deserve.
Software Development Engineer
2017 - 2021
I was a backend developer on two teams at Amazon. For ~3 years I worked on the storage layer team of a petabyte-scale time-series datastore. I designed, developed, deployed, and operated a suite of services to build distributed, highly-available, and horizontally-scalable systems on AWS using S3, DynamoDB, Kinesis, LMDB, and more. I then spent ~1 year on a project with executive team visibility in Amazon's retail inventory space. There I refined cross-organizational requirements, then designed and implemented an efficient solution in a system with a 20+ year legacy. I served as technical owner of the project, and led a subteam of two junior engineers by breaking down and delegating implementation and design tasks. During my tenure I had the privilege to mentor 2 interns to return offers, as well as to advise 2 intern mentors. Some highlights: - Designed and began implementing a platform-wide self-service autoscaling feature. This feature included a control plane to scale stateful services across storage and access layers and was on track to reduce operational burden to unblock 10x growth. - Produced and ran two-year, multi-developer project plan for the self-service feature. - Designed multi-tenant ingestion routing algorithm based on consistent hash rings. - Designed storage and routing layers of datastore's hot-tier. - Designed new API to enable O(1) access to data regardless of time density.
Amazon is a tech firm with a focus on e-commerce, cloud computing, digital streaming, and artificial intelligence.
Raised $8,108,000,000.00 from DBS Bank and Mizuho Bank.
SDE Intern
2016 - 2016
I designed and developed an extensible Java- and Spring-based distributed service that runs in AWS. The service draws data from Redshift and other internal services to audit and monitor automated repricing events.
Amazon is a tech firm with a focus on e-commerce, cloud computing, digital streaming, and artificial intelligence.
Raised $8,108,000,000.00 from DBS Bank and Mizuho Bank.
Developer Intern
2015 - 2015
Onit deploys Onit apps to simplify business process automation and improve business productivity across all departments and industries.
Raised $216,573,499.00 from K1 Investment Management.
Developer Intern
2014 - 2014
Onit deploys Onit apps to simplify business process automation and improve business productivity across all departments and industries.
Raised $216,573,499.00 from K1 Investment Management.
Education
Bachelor of Science (BS)
2013 - 2017