Andrew Leshan

I’m an AWS Cloud Engineer and DevOps practitioner focused on serverless architectures, infrastructure as code, and production-grade cloud deployments. I independently built three complex AWS systems—serverless video processing, a high-availability 3-tier e-commerce setup, and a fully automated CI/CD pipeline—provisioned entirely with Terraform.

I deliver fast using AI-assisted development workflows (Claude + Cursor), while keeping the work dependable and repeatable. My approach emphasizes modular Terraform, version control, and environments that can be deployed quickly from scratch without manual steps.

Security and reliability are central to my work. I implemented defense-in-depth with IAM least privilege, zero-trust security groups, AWS WAF, GuardDuty, KMS encryption, CloudTrail audit logging, and VPC isolation—alongside monitoring stacks with alarms, dashboards, X-Ray tracing, and incident notifications.

In production systems, I focus on real scalability and operational readiness. I’ve built zero-server scaling pipelines (Lambda + MediaConvert) and Multi-AZ architectures with RDS PostgreSQL failover, Auto Scaling, and observability baked in from day one.