name: Ümit Havare
location: Istanbul, Turkey 🇹🇷
role: Software Developer @ Wechip
focus:
- .NET backends (C#, ASP.NET Core)
- Payment systems (virtual POS, 3D Secure, ISO 8583)
- Modular monoliths, microservices, event-driven design
- GraphQL federation with HotChocolate Fusion
side_quests:
- ZONEBOUND: INFINITE, a 3D mobile action RPG in Unity 6
- Tools that keep AI coding agents on track
fun_fact: "My first Java text adventure is turning into a 3D mobile game."- 🏦 By day I build payment infrastructure: virtual POS flows, 3D Secure and ISO 8583 messaging on .NET
- 🧩 I like modular monoliths with clear module boundaries, Clean Architecture, DDD, CQRS and the Outbox pattern
- 🎮 After hours I'm building ZONEBOUND: INFINITE, a dark-fantasy action RPG for Android & iOS made with Unity 6 + C#
- 🤖 I build tools around AI coding agents like Claude Code and Codex CLI
- 📝 I write about .NET and GraphQL on Medium
- 💬 Ask me about C#, .NET, GraphQL, RabbitMQ, PostgreSQL, payment flows
| Project | What it is | Stack |
|---|---|---|
| 🧯 unwedge | A circuit breaker for AI coding agents: notices when Claude Code, Codex CLI or a custom agent loop is stuck in a doom loop and steps in before it burns the budget | Python |
| 🏗️ core-modulith-project | Modular Monolith template on .NET 10: Clean Architecture, DDD, CQRS, Outbox, Keycloak auth, schema-per-module PostgreSQL, unit + integration + architecture tests | C# · .NET 10 |
| 🎮 ZONEBOUND: INFINITE (in development, private) | Mobile dark-fantasy action RPG built with Unity 6, a full 3D rewrite of my Java AdventureGame | C# · Unity 6 |
| 🎛️ claude-mods | Claude Code mods, starting with usage-band: a live usage, token and cost ribbon above the prompt |
TypeScript |
- Resolvers, Relay & the Node Pattern — From Basics to Distributed GraphQL with Fusion
- Federating .NET GraphQL APIs Locally: A Fusion Guide for Schema Stitching
- Exploring PocketBase: The Lightweight and Open-Source Backend Solution for Modern Applications
I'm always up for interesting projects, from payment platforms and backend architecture to game dev and AI tooling. Feel free to reach out!
