Open to Opportunities
🇹🇷 Turkey · Remote

Batuhan Yegin

AI Engineer

Five years shipping production software. Now designing AI systems — from RAG architectures and LangGraph agent orchestration to LLM evaluation and fine-tuning. The engineering discipline didn't change. The stack did.

About

The story so far.

Five years, five companies, and a production mindset that ran through all of it. At Uyumsoft I built custom ERP platforms. At Xay Yazılım I shipped four different products across mobile and web. At Confido I developed real-time video communication infrastructure. At NT Bilgi Teknolojileri I architected a full reservation management system. At Supercode, working with Koç Sistem and Yapı Kredi, I built enterprise-grade inventory management systems, SLA engines, SAP integrations, and TÜBİTAK compliance infrastructure. Alongside that, I placed in the top 15 at Teknofest 2024 across two separate categories.

In parallel with all of that, I was studying a different kind of engineering. Not surface-level AI tools — I built my own local LLM engine. I studied agent orchestration patterns, self-correcting RAG architectures, and evaluation frameworks before RAGAS and LLM-as-Judge became standard hiring signals. The production discipline I built in enterprise systems translated directly: reliability, observability, and engineering rigor above all else.

In June 2026, I closed that chapter. I'm now building a public portfolio of 12 AI projects at unickai.com — each one a real, deployed artifact, not a tutorial output.

Experience

  • Supercode Koç Sistem · Yapı Kredi
    2024–2026
  • NT Bilgi Teknolojileri Reservation Systems
    2023–2024
  • Confido Real-time Platforms
    2023
  • Xay Yazılım 4 Products
    2022
  • Uyumsoft ERP & Platforms
    2021–2022

Teknofest 2024 — Top 15, two categories

Available for full-time & freelance

Tech Stack

What I build with.

AI & LLM Ecosystem

LangGraph

Agent Orchestration

RAG / Retrieval

Retrieval-Augmented Gen.

LangChain

LLM Framework

ChromaDB / FAISS

Vector Databases

Pinecone / pgvector

Cloud & SQL Vector DBs

Fine-tuning (LoRA/QLoRA)

PEFT Methods

HuggingFace / PEFT

Model Hub & Fine-tuning

RAGAS

LLM Evaluation

LLM-as-Judge

Evaluation Framework

LangSmith

LLM Observability

MCP

Model Context Protocol

Prompt / Context Eng.

System & Instruction Design

Corrective / Self RAG

Advanced RAG Patterns

Ollama

Local LLM Runtime

OpenAI API

GPT-5.5 / GPT-5.6 / Embeddings

Anthropic API

Claude Opus 4.8 / Fable 5

Whisper + ElevenLabs

Voice AI Pipeline

Guardrails / Safety

LLM Validation & Safety

Engineering

Python

Primary Language

FastAPI

AI API Layer

Pydantic v2

Data Validation & Schema

Docker

Containerization

Celery / Redis

Async Task Queue

PostgreSQL + pgvector

Relational + Vector DB

Nginx

Reverse Proxy & Routing

Linux / Ubuntu

Self-hosted Infra

GitHub Actions

CI/CD Pipelines

pytest / unittest

Test Suite & Coverage

Foundation (5 yrs)

Laravel / PHP

5 yrs · Enterprise production

MySQL / PostgreSQL

Relational DB Design

Redis

Caching, Sessions & Queues

Vue.js 3 / Nuxt

Frontend SPA & SSR

React / TypeScript

Component UI & Typing

Tailwind CSS

Utility-first UI

REST API / GraphQL

API Design & Integration

SAP Integration

Enterprise ERP

Projects

Things I've shipped.

Built at unickai.com — real deployments, not demos.

Building

Docs RAG Assistant

Site/documentation RAG with source citations.

RAGCitationsLangChain

AI CV Analyzer

CV parsing and job-match scoring with structured output.

Structured OutputFastAPI

Self-Correcting Agentic RAG

Corrective RAG + Self-RAG + Adaptive RAG patterns.

LangGraphCorrective RAG

MCP Server

Custom Model Context Protocol server and tool integration.

MCPTool Use

Conversational Support Agent

Multi-turn customer support agent with memory and escalation.

LangGraphMemoryAgents

Multi-Agent Research System

Hierarchical multi-agent orchestration for research automation.

Multi-AgentLangGraph

LLM Eval Suite

Key Signal

RAGAS + LLM-as-Judge evaluation framework for RAG pipelines.

RAGASLLM-as-JudgeEval

Production AI API

Flagship

FastAPI + LangGraph + MCP + guardrails + observability. Flagship.

FastAPILangGraphMCPGuardrails

Fine-tuned Model App

QLoRA/SFT fine-tuning pipeline with inference API.

LoRAQLoRAFine-tuning

Voice AI Assistant

End-to-end voice assistant with Whisper and ElevenLabs.

WhisperElevenLabsVoice

Contact

Let's build something.

Open to full-time AI Engineer roles, freelance projects, and interesting collaborations. If you're working on something that involves LLMs, agents, or production AI — reach out.