Bazarline
A rebuilt checkout, order and courier system for a grocery delivery company handling 4,000 orders a day.
- Client
- Bazarline
- Year
- 2026
- Role
- Lead developer
- Timeline
- 6 weeks
- Live
- Visit the site
The problem
Orders were getting lost between the website, the warehouse and three courier companies. Peak hours brought the old PHP app to its knees.
What I built
- Queue-based order pipeline with retries
- One API for three courier partners
- bKash and card payments with webhooks
- Load test at 5× the real traffic
The result
The headline: −92% checkout errors after launch. The Bazarline team owns the code, the docs and the servers, with a hand-over guide for the next developer.
Checkout errors dropped to almost zero in the first week. — Rafiq Islam, COO
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