Mark John T.

Expert in DevOps, CI/CD, AWS Service and Containerization

Specializing in infrastructure automation, containerized workloads, and CI/CD pipeline design on AWS. I architect and maintain scalable cloud environments using Terraform, Docker/ECS, and Git-driven deployment workflows. My approach emphasizes infrastructure-as-code, observability, and reducing operational toil through automation. Core Competencies Cloud Infrastructure: AWS (ECS/EKS, EC2, RDS, ElastiCache, Route53, IAM, S3), VPC networking, multi-account architecture Infrastructure as Code: Terraform for provisioning and managing cloud resources with state management and modular design Containerization & Orchestration: Docker, Docker Compose, ECS task definitions, image optimization, and runtime security CI/CD: Bitbucket Pipelines and GitHub Actions for automated testing, image builds, and zero-downtime deployments Linux Systems: Ubuntu/CentOS administration, service hardening, performance tuning, and troubleshooting at the kernel/userspace level Scripting & Automation: Python and Bash for tooling, deployment scripts, and operational workflows Recent DevOps Focus Designed and maintained AWS infrastructure using Terraform, implementing least-privilege IAM policies and secure S3 configurations Containerized applications using Docker and deployed to ECS with task definitions, service discovery, and load balancing Built CI/CD pipelines in Bitbucket Pipelines and GitHub Actions to automate image builds, vulnerability scanning, and ECS deployments Provisioned and troubleshot Linux servers (Ubuntu/CentOS) in cloud and virtualized environments for development and production workloads Integrated monitoring and logging solutions to improve observability of containerized services Background Context Earlier experience in SaaS technical support provided deep exposure to cloud-hosted applications and customer-facing reliability expectations—informing my focus on resilient, observable infrastructure design.