Overview
Architecture and evolution of the AWS networking layer supporting applications, Kubernetes and enterprise integrations.
Context
Networking was a critical platform layer supporting public and private services, integrations and continued growth.
Challenge
Reduce exposure, control traffic paths and preserve availability while considering NAT and data transfer costs.
My role
- VPC, subnet and routing architecture
- Public and private connectivity
- NAT, Internet Gateway, private endpoints and DNS
- Security groups, load balancing and component connectivity
- Troubleshooting, traffic analysis, optimization and Terraform
Architecture
The design separated public and private layers, routed traffic through controlled entry points and used private connectivity to managed services when appropriate.
Technical decisions
- Clear separation of public exposure and private components
- Explicit route and traffic path control
- Availability considered from initial design
- Security, performance and transfer cost evaluated together
Security & governance
Reduced direct exposure, segmentation, routes and security groups supported defense in depth.
Automation
Network infrastructure was represented as code for consistency and reviewable change.
Engineering challenges
Cloud networking extends traditional network fundamentals with managed services, automation and data-flow pricing models.
Results
- A more predictable growth-ready topology
- Improved connectivity troubleshooting
- Network decisions informed by operations and cost