Real products. Real constraints. Case studies written so you can feel the problem, the system shape, and why the outcome was worth building.
You need product systems that remove friction, protect margins, and scale without a surprise infra bill. Each case study is a full story: stakes, approach, system shape, and results - not a feature brochure.
Conversion leaks, expensive media, brittle integrations, slow products - I map those to systems you can ship, measure, and keep fast under real load. Premium is clarity under pressure.
From city + specialty search to a confirmed hospital slot - without dumping patients onto a phone tree. Marketplace UX on top; real booking systems underneath.
A live multi-tenant school OS for Bangladesh: biometric attendance, bKash/Nagad fees, exams, Bangla parent SMS. 22+ institutions, recurring revenue past ৳1 lakh.
Gated, branded streaming without owning a CDN farm - durable unlisted storage, a lean streaming middle tier, and access rules your product actually owns.