Retail
Sub-second checkout for Helios Retail
Reduced checkout latency from 4.2s to 0.8s across 120 stores and a high-traffic ecommerce site.
The challenge
Helios was losing an estimated $3M/year to cart abandonment caused by slow checkouts, especially on mobile.
Our solution
We profiled the full checkout path, rebuilt the order service as a stateless Go microservice, introduced edge caching for static catalog data, and migrated the frontend to Next.js with edge-rendered cart pages.
Tech stack
Next.jsGoRedisCloudflarePostgreSQL
Results
4.2s → 0.8s
Checkout latency
+14%
Conversion rate
120
Stores affected
$3M
Annual revenue recovered
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