# Sayantan Chakraborty — Oracle DBA & Database Reliability Engineer > Portfolio of Sayantan Chakraborty, an Oracle Database Administrator and Database Reliability Engineer (11+ years, Bangalore, India) specialising in Oracle RAC, Data Guard, GoldenGate, RMAN, OEM, Oracle EBS, PostgreSQL/Patroni, high availability, disaster recovery and automation with Ansible and Terraform. ## Key pages - [Home and profile](https://cadentic.dev/): experience, projects, expertise and contact - [Articles](https://cadentic.dev/blog): Articles on Oracle RAC, Data Guard, RMAN, GoldenGate, EBS and database reliability engineering by Sayantan Chakraborty. - [Videos](https://cadentic.dev/videos): Video walkthroughs on Oracle RAC, Data Guard, RMAN, GoldenGate and database reliability by Sayantan Chakraborty (YouTube @csayantan). - [AI policy](https://cadentic.dev/ai-policy): how AI systems may use this content - [Privacy (DPDP)](https://cadentic.dev/privacy) and [Terms](https://cadentic.dev/terms) ## Profiles - LinkedIn: https://www.linkedin.com/in/sayantan-chakraborty-y2022 - GitHub: https://github.com/ust-sayantan - YouTube: https://www.youtube.com/@csayantan ## Videos - [Featured video](https://www.youtube.com/watch?v=gXT9izr0ljQ)