Rizwanul Hoque Ratul

I am a DevOps Engineer with 5 years of professional experience in building, automating, and scaling cloud-native systems across AWS and GCP.

Currently, I work at Optimizely, where I manage cross-cloud infrastructure using Terraform, Terragrunt, and Ansible, design Kubernetes (EKS/GKE) deployments, and maintain monitoring/alerting systems with Datadog, CloudWatch, and ELK.

Some of my key contributions include:

• Kubernetes & IaC – Designed and upgraded self-managed Kubernetes clusters, Karpenter provisioning, and automated with reusable custom in-house Terraform/Terragrunt modules
• Authentication & Security – Implemented centralized multi-protocol IAM integrating Okta, Google, Active Directory, social login, and local authentication.
• CI/CD & Automation – Built and optimized pipelines with GitHub Actions, Jenkins, and GitOps workflows, including blue-green deployments and disaster recovery strategies.
• Cross-Cloud Deployment – Migrated SaaS products to support both AWS and GCP environments.
• Cloud Migration & Optimization – Led Redis-to-DynamoDB migration, used karpenter to reduce infrastructure costs, and improved stability.

Previously, I worked at Workspace Infotech Limited as a Jr. Software Engineer, where I developed and maintained a real estate marketing platform with features like encryption, browser extensions, and big data API integrations.

Certifications:

• Certified Kubernetes Application Developer (CKAD) – 2024
• HashiCorp Certified Terraform Associate – 2024
• AWS Solutions Architect Associate – 2023

I bring strong expertise in Kubernetes, Terraform, Terragrunt, CI/CD, observability, authentication systems, and cloud cost optimization, and I enjoy solving real-world infrastructure challenges through automation and scalable design.