I build AI-integrated products, operational business software and cloud systems — from product architecture and databases to automation, infrastructure and production delivery.
A live browser-based productivity ecosystem combining cloud storage, office-style workspaces and focused productivity tools.
Live today
- KreoCloud
- KreoPDF
- KreoDoc
- KreoSheets
- KreoSlides
- KreoBoard
- browser-based utility tools
- approximately 30 locale / language-market product architecture
AI-Native Office — in development
A deeper private architecture is being developed around model routing, semantic orchestration, document and workspace context, tool execution, durable workflow state, streaming, continuation and recovery.
Selected sanitized architecture studies from private systems.
Personal AI-assisted investment research system for equities and crypto.
Cloudflare Workers · Durable Objects · SQLite ledger · market-data adapters · deterministic risk logic · model gateway · structured outputs
Research assistant only — it does not autonomously execute broker trades.
A private video/media discovery and processing platform built around an approximately 30-locale / language-market architecture.
The system includes:
- AI-assisted localization and localized search packages
- PostgreSQL / Supabase canonical data
- Cloudflare Workers, Hyperdrive, Queues and Workflows
- Bunny media delivery
- Ubuntu / OVH source-processing infrastructure
- systemd workers and recovery workflows
- multilingual Next.js discovery/search surfaces
Occupational-safety Action Tracking System
Built for the safety specialists of a construction company.
Next.js · TypeScript · PostgreSQL · Supabase · RLS · Storage · Realtime · scheduled automation · notifications · role-aware workflows
Private automotive operations system — active client use
Custom software built around an automotive service company's workflow:
- customer and vehicle records
- maintenance and service history
- service reminders
- stock and inventory workflows
- customer messaging and email automation
- QR-based operational flows
- CRM-style dashboards
The public business website is also part of the delivery:
🌐 oto-yasin.com
💻 Public website repository
Private operational system — currently used by a hotel
A custom room and guest operations system used for day-to-day check-in / check-out workflows.
Engineering includes:
- Supabase Auth
- PostgreSQL / RLS
- Realtime state
- transactional RPC workflows
- audit controls
- operational reporting
- Excel exports
- automated and database-level testing
Source and hotel data remain private.
Finance and work-management software based on a real business workflow
Public documentation is sanitized and uses synthetic data. The production company's records, history and source remain private.
Architecture case study for the private client system described above.
Paid production delivery
Corporate and project website built and delivered for Kalmes Yapı.
Production website delivered alongside the company's private operations platform.
One of my earlier live professional web projects.
Former web and digital-services venture I operated for Cyprus and Türkiye.
Not every useful project became a finished company or production product.
These projects represent experiments, prototypes and earlier product-development work that expanded my technical range.
React Native / Expo language-learning product prototype with Supabase authentication, onboarding and placement-test flows.
Mobile nutrition-product prototype exploring onboarding, structured product flows, Supabase-backed data and AI-assisted product concepts.
Founder-oriented Next.js / Supabase product prototype focused on authenticated onboarding and product workflows.
Python-based automation pipeline for templated video generation and rendering.
Experimental AI-assisted CAD prototype combining FastAPI, structured LLM interpretation, DXF processing and deterministic geometry logic.
These are intentionally presented as prototypes or experiments rather than finished products.
| Area | Experience |
|---|---|
| AI systems | model routing, structured outputs, orchestration, evaluation, tool workflows, contextual systems |
| Backend & data | TypeScript, Python, FastAPI, PostgreSQL, Supabase, RLS, RPC workflows |
| Cloud & edge | Cloudflare Workers, Durable Objects, Queues, Workflows, R2 |
| Infrastructure | Linux, VPS, Ubuntu, nginx, systemd, self-hosted processing |
| Product engineering | Next.js, React, React Native / Expo, APIs, automation |
| Internationalization | locale-aware architecture, localization systems, multilingual search/content surfaces |
I am most interested in products where AI is only one part of a larger engineering system — connected to real data, tools, workflows, deterministic logic and usable interfaces.
I enjoy taking an idea from:
problem → architecture → implementation → deployment → iteration
rather than working only on isolated frontend or model calls.