Migration and DevOps - Case Study - Centizen Inc.
See how Centizen helped an online education leader cut costs, boost uptime, and accelerate deployments with AWS cloud migration and DevOps practices.
Centizen didn’t just migrate our infrastructure — they transformed the way we deliver education. With modern DevOps pipelines and automation, we release features faster and more securely. Their team understood our challenges and executed flawlessly.
– VP of Technology
U.S.-based Online Education Provider
A leading U.S.-based online education provider delivering self-paced, competency-based diploma, certificate, and degree programs. Focused on accessibility and flexibility, they serve thousands of learners nationwide through a digital-first platform.
The Challenge
The client relied on a legacy on-premises infrastructure that was expensive, inflexible, and difficult to scale. Manual provisioning and fragmented systems led to delays, inconsistent deployments, and growing security concerns – all of which hindered innovation and growth in a competitive e-learning market.
The Solution
Centizen modernized their IT landscape with a secure, multi-account AWS landing zone, automated CI/CD pipelines, infrastructure as code using Terraform and CDK, and scalable serverless options like Fargate and Lambda — all designed to reduce cost and boost agility.
The Outcome
Today, the client enjoys seamless deployments, resilient infrastructure, and cost savings through automation and pay-as-you-go cloud services. Centizen’s expertise enabled a smooth transformation aligned with DevOps best practices.
The Solution
Weeks 1–2: Discovery & Planning
Centizen conducted a comprehensive infrastructure assessment, evaluating application dependencies, performance bottlenecks, and security posture. AWS architecture planning began with a tailored Landing Zone setup.
Weeks 3–4: Foundational AWS Setup
- Implemented AWS Organizations with centralized SSO
- Deployed Control Tower with separate Dev, Staging, and Prod accounts
- Laid out secure VPCs, private subnets, and Transit Gateway networking
Weeks 5–8: Infrastructure & Automation Rollout
- Replaced legacy NFS with Amazon S3 and EFS
- Provisioned RDS (PostgreSQL) for scalable database services
- Defined Terraform modules for all infrastructure components
- Introduced AWS CDK (Python) for developer IaC enablement
- Applied Ansible for configuration management consistency
Weeks 9–10: CI/CD Modernization
- Replaced Jenkins with GitHub Actions and AWS CodePipeline
- Enabled Blue/Green deployments with AWS CodeDeploy
- Integrated automated unit, integration, and security testing
Weeks 11–12: Containerization & Observability
- Optional: Deployed EKS for container orchestration or Fargate for serverless workloads
- Configured centralized logging with CloudWatch and OpenTelemetry
- Enforced security using IAM roles, GuardDuty, WAF, and Shield
The Outcome
The client transitioned from a high-cost, legacy system to a modern, scalable AWS infrastructure with DevOps-driven automation, cutting deployment time and increasing operational confidence.
70%
reduction in deployment time via automated CI/CD pipelines
40%
lower infrastructure cost through AWS autoscaling and usage-based pricing
60%
drop in security incidents with hardened access controls and managed services
90%
uptime improvement through resilient, cloud-native design
Centizen successfully migrated core workloads, implemented full-stack automation, and enabled a secure, compliant, and scalable AWS environment, positioning the client for long-term growth.
