The Challenge
FinStack's legacy monolith was deployed on a fleet of hand-configured EC2 instances. Every release required a full weekend maintenance window, manual database migrations, and a cross-team war room. Deploys averaged 4–6 hours with a rollback rate above 15%.
Our Approach
- Containerisation — Dockerised 23 micro-services extracted from the monolith with multi-stage builds and distroless base images.
- Infrastructure as Code — Provisioned AWS EKS clusters across 3 regions using Terraform modules with state locking in S3 + DynamoDB.
- GitOps Delivery — Implemented ArgoCD for declarative, audit-ready deployments with automated drift detection.
- Service Mesh — Deployed Istio for mTLS, traffic splitting, and canary releases with automated rollback on SLO breaches.
Results
Within 12 weeks the engineering team went from bi-weekly releases to 50+ deploys per day. Mean time to recovery dropped from 2 hours to under 5 minutes. The platform now auto-scales to handle 3× traffic spikes during market hours without manual intervention.
"We went from dreading releases to deploying with confidence multiple times a day. The DevOps Services Pro team transformed our entire delivery pipeline." — VP of Engineering, FinStack
