Warranty Checkout Migration
A staged migration that launched a migrated checkout flow, generated $500K+ in the first two months, and reduced checkout latency from ~30s to under 5s.
Context
Warranty checkout ran on a legacy stack with ~30s end-to-end latency and limited operational visibility. It was a meaningful revenue stream that we wanted to migrate onto the modern commerce platform without disrupting customers.
Problem
We needed to migrate the warranty flow onto the new cart-checkout platform, hold a steady revenue line during cutover, and reduce checkout latency enough to actually feel different to users.
What I did
- Modeled the warranty checkout flow on the new platform, including pricing rules, eligibility, and downstream order workflows.
- Built a staged cutover: dual-running, percentage ramp, kill-switch, and clear rollback steps.
- Designed dashboards and alerts focused on the cutover — error taxonomy, latency percentiles, and revenue parity.
- Worked with product, support, and partner engineering teams to handle edge cases before they reached customers.
Result
- Generated $500K+ in revenue in the first two months on the migrated flow.
- Reduced checkout latency from ~30s to under 5s.
- Established a reusable migration template for the next flows.
Tech
- Kotlin
- GraphQL
- Commercetools
- Stripe
- Affirm
- AWS
- EKS
- Datadog
- PagerDuty