• Clustered  PostgreSQL on 3 servers for managing many requests 

• Built Elastic search engine for used on search products and showing data

 • Dockerize backend based on Ruby and Rails 

• Developed php workers for transfers all files to AWS object storage

 • Built Jenkins for daily databases backups and store on backup systems

 • Built Gitlab for app version control system and Gitlab runner for CI/CD 

• Used uptime system for analyze the services

 • Ran all services on kubernetes and using  12 Factories methodology .