Enterprise Cloud Transformation for a Fortune 500 Retailer
What was at stake
The retailer was running 340+ workloads across two aging on-premise data centers with 12 legacy systems that hadn't been meaningfully updated in over a decade. Infrastructure costs were growing 18% year-over-year, deployments took weeks, and the platform struggled to maintain uptime during Black Friday and holiday surges — costing an estimated $4.2M in lost revenue during the previous peak season.
How we delivered
Workload Assessment & Migration Strategy
Catalogued all 340+ workloads using automated discovery tooling, classifying each as rehost, replatform, refactor, or retire. Developed a risk-scored migration roadmap that prioritized revenue-critical systems and minimized business disruption.
Multi-Cloud Architecture Design
Designed a hybrid AWS + Azure architecture leveraging AWS for compute-heavy e-commerce workloads and Azure for enterprise integrations and Active Directory dependencies. Implemented a cloud-agnostic networking layer with automated failover.
CI/CD & Platform Engineering
Built a unified CI/CD platform using GitOps principles, enabling 150+ developers to deploy independently with automated testing, canary releases, and one-click rollbacks — reducing deployment time from weeks to under 30 minutes.
Zero-Downtime Cutover & Optimization
Executed the final migration cutover during a planned low-traffic window using blue-green deployment patterns, achieving zero unplanned downtime. Post-migration, implemented FinOps practices that identified $1.8M in additional savings through right-sizing and reserved capacity.
Measurable impact, verified by the client
Technologies we used
“We migrated 340 workloads with zero unplanned downtime during our highest-traffic quarter. Infrastructure costs dropped 40%, and our engineering teams now deploy 3x faster. TPWITS didn't just migrate our systems — they modernized our entire delivery culture.”
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