Mehmet Fahri Özmen
Backend Systems Architect · Engineering Leader
I build the things you don't see —
distributed systems, search engines, payment flows, and whatever lies beyond the horizon.
From hiring to shipping — I build the systems and the teams behind them.
The galaxy below? That's my universe.
What I've built
Mobilet
Event ticketing platform with campaign engine, QR gate entry, and multi-channel payment processing serving millions
- ▸80K tickets/hour peak capacity
- ▸Custom dynamic campaign engine
- ▸Multi-channel payment integration
Shubuo
Digital advertising platform with intelligent ad scheduling that optimizes delivery against contracts in real-time
- ▸Smart schedule-based ad delivery
- ▸Contract-aware pacing algorithm
- ▸Real-time campaign optimization
VillaSepeti
Vacation rental marketplace where complex manual filtering rules were transformed into an automated, intelligent search system
- ▸5K+ properties with rule-based availability
- ▸Search engine powered by set theory — replacing human decision-making with algorithmic rule matching
- ▸Automated filtering replacing manual processes
MagicPags
Educational platform teaching kids to read — with real-time analytics tracking dozens of in-app learning events across schools
- ▸Event-driven analytics pipeline for learning insights
- ▸Child-safe content delivery with privacy constraints
- ▸ETL-powered reporting across schools
BeforeSunset AI
Productivity assistant built from the ground up — backend architecture designed and implemented from scratch
- ▸Backend architecture built from zero
- ▸Task planning and scheduling engine
- ▸Intelligent calendar optimization
Decktopus AI
Presentation platform with serverless architecture, real-time subscriptions, and event-driven workflows
- ▸Event-driven serverless architecture
- ▸GraphQL, API and real-time GraphQL subscriptions
- ▸Containerized function orchestration
Latest signals
The First Button
The planning stage everyone skips because it looks like paperwork — epics that never close, stories kept in heads, and the bill that arrives later.
Do You Need an AI Agent, a Tool, a Skill, or MCP?
What's the difference between an AI agent, a tool, a skill, and an MCP server? Four ideas under all the branding, and a decision list for what to build.
The New HTTP QUERY Method
HTTP finally has a method that reads like GET but carries a body like POST. What RFC 10008's QUERY fixes, and how to send one today.
· · · ── there's more beyond the visible spectrum ── · · ·