Django + React rebuild of a legacy enterprise portal — 4× faster, half the code.
Where it started.
Nine years of accreted Django templates meant every page load dragged 4.8 seconds of server-rendered HTML across the wire — and the team was too scared of the codebase to deploy more than once a month. Sales was losing renewals over it.
How we built it.
We didn't rewrite everything at once. A clean REST API went in first, then React screens replaced templates one section at a time behind a feature flag. The old template layer came out only when nothing depended on it — so the portal never went down, and the client's team shipped alongside us the whole way.
A mid-size logistics firm was running a 9-year-old Django monolith. Page loads averaged 4.8 seconds. We rebuilt the frontend in React with a clean API layer, dropped the template layer entirely, and shipped in 10 weeks.
What shipped.
- ✓4× faster page loads
- ✓50% reduction in codebase size
- ✓Zero downtime migration
- ✓Full test coverage on critical paths
Year
2026
Category
Web · Full-stack
Tech
- Django
- React
- PostgreSQL
- Cloudflare Workers
- Tailwind CSS
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