Case study · 2024
Atlas Commerce
Headless storefront migration
Client
Atlas Commerce
Sector
DTC commerce
Duration
16 weeks
Services
Headless commerce · Performance engineering
Brief
Re-platforming a $40m DTC storefront from a monolith to a composable stack — without a dip in revenue during the cutover week.
The challenge
Replace a stack the team loved to hate with one they could iterate on, in a peak-trade window, with no merchandising freeze.
Our approach
Strangler-fig migration over twelve weeks: a new storefront layer ran in parallel with the legacy system, traffic shifted by SKU cluster, and analytics double-wrote to both stacks until parity was provable.
Outcomes
0%
revenue dip during cutover
+3.4x
deploy frequency
−63%
time-to-first-byte
“We replatformed in Q4 and our finance team didn't notice. That's the highest compliment I can give.”