Business Context
A large telecom enterprise operating within the AT&T domain initiated a strategic modernization program to transition legacy bare-metal database infrastructure into a private cloud environment (Flex Cloud).
Architectural Challenges
- Migration of 120+ TB production databases
- Designing IOPS-aligned storage models
- Ensuring transactional continuity
- Supporting 5K+ enterprise users
PostgreSQL Platform Architecture
Defined infrastructure sizing strategy including storage tier planning, memory allocation models, and IOPS capacity planning.
Designed scalable PostgreSQL cluster architecture aligned with enterprise standards and long-term demand growth.
High Availability & Migration
Designed logical replication strategy to enable phased migration from bare-metal systems to Flex Cloud while maintaining transactional integrity.
Infrastructure Automation
Platform provisioning leveraged Terraform and GitHub Actions for CI/CD-driven deployments. Contributed at the architectural strategy level to define infrastructure templates and database standards.
Data Architecture (Secondary)
Contributed to logical and physical data modeling to align schema structures with workload performance patterns.
Outcomes
- Successful bare-metal to private cloud migration
- Enabled high availability and scalable provisioning
- Reduced infrastructure costs
- Established enterprise PostgreSQL platform foundation