Krishnan Subramanian

• Designed and Developed Backup Archival Solution to meet customer data retention with focus on RDS and S3 backups.
• Did extensive study on existing solutions and came up with custom solution that complements existing backup workflow.
• Used AWS Lambda and Python Boto3 API extensively to achieve outcome.
• Tools Used : AWS, SSM, RDS, Lambda, Python Boto3, Object Tagging, S3 Lifecycle Policies, S3 Inventory and Batch Operations, Terraform.
• Evaluated Fortanix as compatibility / Alternate for AWS KMS.
• Evaluation involved, working with Stake holders from STS team as well as fortanix vendor to test out terraform provider configuration.
• This involved writing terraform code to test use cases for creation, rotation, deletion of Fortanix keys in lieu of using AWS KMS.
• Tools Used: AWS, KMS, Terraform, Fortanix.

• Automated routine manual changes saving 1000+ hours of toil.
• Created 60+ self service automation scripts.
• Wrote Monitoring stack complementing existing Global Monitoring Standards.
• Automated and enforced Low Level OS security standards across SCB Unix/Linux estate.
• Wrote cod to automate NAS migration of filers across Unix estate. Saving at least 500 + hours of manual effort.
• Working on providing Automation as service to end users/teams enabling BYOS.
• Implemented Self healing automation of incidents generated via monitoring tool.
• Developed efficient technical solutions to resolve wide range of Unix operations problems.

- Engineering Solutions for HPE NA customers on Unix + HPE Hardware

- Automated the BCV/SRDF backups in AIX platform, resulting in efficient and consistent backup.

• SME for Unix Operations
• Review/Implement highly critical Changes/Migrations
• SPOC for BC5 critical Infrastructure.
• Review/Improve stability of Unix Infrastructure.
• Handle escalated P1/P2 tickets and outages, if any.
• Write simple automation scripts to avoid Toil.

• Unix Tech Lead supporting 5000 + Servers comprising Solaris/Linux/HP-UX/AIX
• Handle escalated P1/P2 calls.
• Work on critical projects + Migrations.
• Designed/Automated a three disk Live Upgrade strategy to migrate and Patch Solaris 10 OS achieving a zero downtime patching of Solaris 10 OS.
• Solution Engineering for Infrastructure comprising Linux/C-7000/Blades/HP-UX/Solaris Hardware - M-9000/Ldoms/Zones.
• Global Review of HP's Engineering delivery for NA region. This involves review/suggestive improvements of all engineering delivery for HP's NA customers.