Hi, I'm Someswararao Tarra

Recruiters and applications require secure network isolation patterns where backend infrastructure is hidden from public access while maintaining controlled internet gateways.

Designed a VPC with public and private subnets across multiple availability zones, route tables, an Internet Gateway (IGW) for public servers, and a NAT Gateway for secure outbound private subnet routing.

Understood public vs. private subnets, routing tables, and the role of NAT Gateways in preventing incoming traffic to private instances while permitting outgoing requests.

Direct SSH access to private subnet instances poses severe security risks and exposes resources to public penetration attempts.

Configured secure connectivity models utilizing Bastion Hosts (Jump Boxes) and AWS Systems Manager Session Manager, restricting port access via Security Groups.

Mastered multi-hop SSH routing configurations, transit rules, and IAM permissions required to execute secure, keyless SSM-based shell access.

Applications residing in separate isolated AWS networks (VPCs) need to exchange data securely without traversing the public internet.

Built VPC peering connectivity between two distinct VPCs. Configured corresponding route tables, resolved CIDR block conflicts, and security rules.

Learned how CIDR blocks overlap checks work, how to create peering requests and accept them, and how route tables handle trans-VPC network routes.

Ensuring high availability and load distribution across multiple web servers while isolating unhealthy node failures.

Configured target groups and an Application Load Balancer (ALB) to handle incoming requests. Established custom HTTP path checks to run regular health monitors.

Acquired deep understanding of load balancing layers (Layer 7), path-based routing, target group registrations, and automatic traffic redirection from failing instances.

Servers routinely crash due to disk capacity exhausts, permission blocks, high CPU/Memory load spikes, or listening port conflicts.

Simulated and successfully resolved real-world production outages: diagnosing SSH failures, high CPU/memory spikes, disk-full bottlenecks, systemd service crashes, and port conflicts.

Learned to triage system limits, read service logs via journalctl, isolate disk bloats, and identify process port usage dynamically to restore operation.

Repetitive system maintenance, log rotation, and server backups consume manual hours and are prone to human operational error.

Created production-ready Bash scripts that automate system health checks, log file rotations, folder backups, conditional process checks, and cron scheduling.

Gained proficiency in write-safe bash scripting using error handling (set -e), environment variables, conditional checks, loop structures, and automated scheduling.

Manual container deployments lead to configuration drift, deployment downtime, and brittle environments without reproducible infrastructure or automated CI/CD.

Built modular Terraform IaC to provision multi-AZ VPC, ALB, and serverless AWS ECS Fargate. Automated GitHub webhook-triggered Jenkins CI/CD to build Docker images, push to Amazon ECR, and orchestrate zero-downtime rolling deployments.

Mastered end-to-end Infrastructure as Code with reusable modules & S3 remote state, Dockerized deployments, automated Jenkins webhooks, and ECS rolling updates.