For 10+ years I've worked on POS, ERP, and distributed services. Currently building ERPOS at Colin's — running across hundreds of stores — while taking freelance projects and exploring my own SaaS ideas on the side.
Redis cache layer + RabbitMQ event bus refactor on POS across hundreds of stores.
B2C reserve & pickup platform. Flutter + Next.js + Supabase + İyzico.
Fast on-device OCR with Flutter + ML Kit, Turkish character support.
Multi-currency, automatic USD/TRY rate, tax calculation. Built for my own use.
How to design cache keys, TTL strategies, and why 'pub/sub invalidation' isn't always the right answer.
B-tree, GIN, BRIN, partial index — when and why each? With benchmarks.
Agentic IDE — real or market gimmick? What it changed in my daily workflow, and what it didn't.
Good backend is invisible backend. It works quietly, stays in the right place, doesn't try to be clever. Complexity is always debt — we take it on only as much as needed.
— Aziz Osmanoğlu, notebook, 18.MAR.2026
Backend, system architecture, .NET, or technical consulting — describe what you need, I'll respond within 24 hours.