How We Migrated a B2B SaaS from Azure to AWS (and Automated CI/CD Along the Way)
Moving clouds isn’t always sunny skies 🌩️➡️☀️.
Recently, our team at Perfsys worked with a fast-growing B2B software company that decided to shift their infrastructure from Microsoft Azure to Amazon Web Services (AWS).
The goal? Build something scalable, SOC2-ready, and developer-friendly — without slowing down releases.
Here’s how we tackled it 👇
The Situation
The company had built their platform entirely on Azure (AKS, Cosmos DB, Azure Pipelines, etc.).
It worked fine during early development, but cracks started to show:
- Environment isolation was unreliable.
- CI/CD pipelines were fragmented.
- Secrets management wasn’t great.
- Monitoring and compliance checks required a lot of manual effort.
As they prepared for a public launch (and SOC2 audit), it became clear: they needed a more structured, automated, and secure setup.
The Game Plan
We broke the migration into five phases, each focused on clear deliverables:
📌 AWS Organization Schema
A multi-account AWS layout with IAM Identity Center (SSO), centralized logging, and SOC2 guardrails.
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Discovery & Planning
- Mapped dependencies, reviewed CI/CD, and built a migration roadmap.
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AWS Foundation Setup
- Created separate accounts (prod/stage/dev).
- Set up SSO, centralized logging, and compliance controls.
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Infrastructure as Code
- Deployed VPC, subnets, RDS (PostgreSQL), S3, ALBs — all through Terraform.
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CI/CD Automation
- Connected existing Azure pipelines to AWS ECR + ECS.
- Built a hybrid pipeline with secure secrets handling.
📌 CI/CD Pipeline Overview
From Git commit → Docker build → ECR → ECS deploy.
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Production Deployment
- Rolled out services behind VPN-only access.
- Added image promotion and safe deployment policies.
The Outcome
By the end of the project, the company had:
✅ A SOC2-ready AWS setup with centralized logging and access control.
✅ Fully automated CI/CD pipelines across dev, staging, and production.
✅ Secure, private infrastructure with VPN-only access.
✅ Reproducible environments (Terraform-powered).
✅ Reduced ops overhead via container orchestration and autoscaling.
Most importantly, developers could spin up and tear down environments at will, test faster, and ship with confidence 🚀.
Key Takeaway
Cloud migrations don’t have to be painful. With the right structure, automation, and security guardrails, you can move fast without breaking things — or compliance.
👉 Curious how this might work for your own team?
Check out perfsys.com to see how we help companies scale smarter in the cloud.
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