Ronaldo Lemos

Software Engineer @Checkout.com

London, GB

Build highly distributed applications using.net core and aws services (SNS, SQS, Lambda, Kinesis, S3, ECS, ECR, KMS, Secrets Manager, and Artifacts) for dispute processing. Create integration and acceptance tests using node.Integrate services with the main card schemes (Visa and MasterCard).Migrated CI pipelines from TeamCity to GitHub Actions.Created build pipelines using Cake to build multi-platform docker images to the projects work on ARM64 and AMD64 environments.Worked on integration with MasterCard to make resolving disputes against the merchants easier. The merchant can resolve the dispute quickly by paying a small fee. Used.net core for all services created and extended. Used kinesis for events and SQS to send messages. The database is MS SQL Server.Created an integration with Visa to manually represent possible friendly fraud disputes, where we used past transactions from the client against the merchant with some specific information that may indicate a case of friendly fraud. Used.net core for all services created and extended. Used kinesis for events and SQS to send messages. The database is MS SQL Server.