Diagonal Software

About

Diagonal.Software is a digital agency in Hessen, Germany offering full-service software development — web and app development, UI/UX design, DevOps/hosting and machine learning. It is registered as Diagonal.Software GmbH, with a presence around Darmstadt and Aschaffenburg.

What I worked on

• Led the backend development of the ListInfo hotel booking platform using Python, Django, and Django REST Framework, architecting RESTful APIs that served 100K+ daily requests.
• Deployed and managed the full application stack on AWS using EC2, ALB, ELB, and ECR for containerized deployments, achieving 99% uptime.
• Designed and implemented CI/CD pipelines for automated testing, building, and deploying Docker containers to AWS ECS, reducing release cycles by 50%.
• Optimized PostgreSQL database performance through query tuning, indexing strategies, and connection pooling, resulting in a 40% reduction in average query execution time.