Alex Kumar Email & Phone Number

United States

Seattle, WA, US

• Backend Engineer working with AWS and Infrastructure
• Worked as a backend engineer in the supply chain optimization organization to help build and upgrade fileupload systems for customers to upload documents through various protocol such as SFTP and AS2 to updateinventory.
• Managed a new version of our SFTP messaging processor, migrating it from legacy services to AWS in order toboth reduce the costs of the older infrastructure
• Implemented AWS infrastructure elements such as ElasticSearch, ECS, and EC2 through the use of AWS CDKin order to lower costs of our logging service
• Developed full integration tests and other AWS services such as Lambdas, SQS, SNS, and S3 for the SFTPprotocol through the use of both AWS CDK pipeline and through the AWS console
• Architected CI/CD pipeline for our upgraded SFTP service to use a new type of integration test and deploymentsystem which fully automated the pipeline, speeding up testing of developer branches and feature brancheswith.

Bentonville, Arkansas, US

• Backend engineer using Java, Kafka, and GCP
• Worked as a backend engineer on the Assignment Optimizer System, a service used by Walmart to help assigndrivers to orders that need to be delivered from Walmart stores directly to customer
• Drove implementation of dynamic batching, a feature to help add on to already existing orders to get betterpayout to drivers and efficiently clear orders
• Integrated Kafka to setup event based messaging to check whether a driver would be able to accept new ordersand updating their previous order to include the new goods
• Developed CI/CD, integration tests, and unit tests to smooth out deployments and automate sanity testing,sped up previous integration testing suite from 5 minutes to within 10 seconds by using various testingstrategies.