At globaldatanet part of x1F, I designed and implemented AFS, a multi-tenant file storage platform using AWS Lambda, AWS Cognito, Amazon S3, API Gateway, and AWS CDK. I built serverless components for secure file operations and tenant-aware access control.
On the WM DOK Online project, I built a serverless data replication pipeline and developed a FastAPI REST API deployed as a containerized Lambda. I also applied hexagonal architecture across a Python monorepo, separating domain logic from infrastructure adapters and Lambda entry points.
At AppCrafters, I developed and maintained backend services and APIs using Java, Kotlin, and Spring. I also worked on AWS serverless solutions and PostgreSQL databases, and contributed to the company’s transition to cloud-native infrastructure.

