Backend developer building web applications, APIs and developer tools. I work across database design, backend architecture, frontend implementation and deployment.
| Area | Technologies |
|---|---|
| Backend | ASP.NET Core MVC · C# · Java · Node.js · Express · NestJS · Python · Django |
| Mobile | Flutter · Dart · Capacitor · Kotlin · Android · iOS |
| Database | MS SQL · PostgreSQL · MySQL · SQLite |
| API & Security | REST · Swagger · Postman · JWT · Identity · RBAC |
| Infrastructure | Docker · Nginx · GitHub Actions |
| Frontend | HTML · CSS · JavaScript · TypeScript · React · Next.js · Tailwind |
- Backend architecture and REST APIs
- Database design, migrations and access control
- Offline-first web and mobile applications
- Automation and developer tooling
- End-to-end product development and deployment
Products I've built and shipped, with live links and technical overviews:
| Product | What it is | Code & architecture |
|---|---|---|
| ✅ TaskWork | Offline-first planner for tasks, calendars, habits and daily reviews. Web, iOS and Android, with optional account sync. App Store · Google Play | Technical showcase |
| ✏️ Gridpen | Visual workspace for connected tables, charts, pages and diagrams. Offline editing, calculation and visualization, with optional cloud sync. | Technical showcase |
| 📖 Readflow | Local-first reading workspace for links, texts and PDFs. Install locally to archive, highlight and summarize with your own coding-agent CLI. | Open source & architecture |
| 📓 Trader Defteri & Defter Terminal | Trade journal with performance and discipline tracking; a separate terminal for charts, watchlists and sourced news. Account required for the live apps. | Technical showcase |
| 🎓 Kalite | MÜDEK/FEDEK accreditation evidence platform: question-level assessment, outcome matrices, multi-year trends and auditable reports. Authorized access to the underlying app. | Technical showcase |
Browse all five products in the live product catalog.