ARIF_RAHMAN / CLOUD
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062025 / Deployed / Personal project

Sterling Digital Cloud Migration

Engineered a highly available, secure, decoupled multi-tier AWS environment for a cloud migration, aligned with the AWS Well-Architected Framework.

AWS VPCEC2ALBASGRDSDynamoDBEFSS3Simple ADSSSD
Multi-AZHigh availability
Audit-readyCompliance posture
Auto-scaledAPI tier

The problem

Sterling Digital Solutions needed a cloud migration that was secure, highly available, audit-ready and decoupled.

What I built

  1. 01

    Built a Multi-AZ VPC with public/private subnet segregation and stateful security groups enforcing least privilege.

  2. 02

    Integrated AWS Simple AD for centralised directory services, automated Linux RBAC and SSSD domain joining.

  3. 03

    Deployed an Auto Scaling Node.js API tier behind an ALB, bootstrapped via User Data scripts handling DNS, EFS mounting and security config.

  4. 04

    Provisioned Multi-AZ RDS subnets, DynamoDB for market data, shared EFS storage and versioned S3 buckets for compliance.

Project stages

01 / 18
Stage 01 — VPC build-out: subnets, internet gateway, NAT gateway, route tables and associations all provisioned successfully.

Stage 01 — VPC build-out: subnets, internet gateway, NAT gateway, route tables and associations all provisioned successfully.