TIS, a cloud-based platform for corporate payments, showcases their secure data lake architecture on AWS. The solution manages data growth efficiently and provides secure access to internal services, customers, and partners. Key features include multi-account setup for data isolation, fine-grained permissions using AWS Lake Formation, and automated infrastructure provisioning with Terraform. The data lake ingests information from internet sources via AWS Lambda and from MySQL Aurora servers using Database Migration Service. This architecture enables TIS to handle 15 terabytes of data with 500 gigabytes of monthly growth, while maintaining security and compliance in financial services.