John Calhoun Email & Phone Number

Austin, TX, US

Austin, Texas, United States

• Member of the Workflow Orchestration team in the Data Processing group where we provision and manage Airflow clusters for our data analysts and data scientists
• Lead and mentored the Data and AI org on upgrading EKS clusters to version 1.22
• Created an automated deployment system for our Airflow clusters that improved our rollouts from taking up to 3 weeks to just a day
• Built a library on booker forecasting that increased usability on projecting booker frequency based on ad spend
• Advocated, designed, and initialized unit testing and integration testing across team owned repos
• Used concurrency to speed up batch docker builds from 20-30 mins to just 5-8 min

Austin, Texas, United States

• Migrated partner carrier integrations into a service called Project44
• Created feature that shows customers a partner carrier’s commute for their shipment
• Made a service called “batch-api” that is used for large processes that require input such as a CSV
• Built a notification system for our operations team for when our partner carriers get service exceptions
• Created a service called “integrated-carrier-config” that decreases the time to add a new integrated carrier from hours to no more than 10 minutes

Greater Los Angeles Area

• Dockerized all PHP backend code
• Configured a new systems architecture using Elastic Beanstalk
• Restructured CI/CD and GIT processes to stabilize deployments and application code
• Created a car scoring system to determine the relevance of a car to our drivers
• Engineered the holding deposits feature
• Designed the regression testing suite using Mocha