Cihan İçelliler
Cihan İçelliler
Open to opportunities
Istanbul, Turkey

Senior Software Engineer & AI Agent Specialist

Building the
Self-Running Bank.

AI agents that orchestrate every banking process — from compliance to customer experience — autonomously.

5+

Years Experience

4

Industries

20+

Technologies

Currently building
Lecta AI — AI-native document intelligence powered by LangGraph, RAG pipelines & event-driven microservices
See details →

Projects & Expertise

What I Build

Production-grade systems powering real businesses — from AI-native banking platforms to event-driven microservices at scale.

Lecta AI

In Development

AI-Powered Document Intelligence

Micro-SaaS platform leveraging LLM-powered agents for autonomous document processing. Built with LangGraph orchestration, RAG pipelines, and real-time streaming. Enables intelligent document understanding at scale with multi-agent workflows.

Ingest
Agent
RAG
Stream
API
LangGraphRAGFastAPIReactSupabaseLLM AgentsPythonWebSocket

Distributed Systems

Enterprise

Microservices architecture, DDD patterns, high-throughput data pipelines, and scalable backend design for millions of users.

JavaSpring BootKafkagRPC

Event-Driven Architecture

Real-time

CQRS, event sourcing, real-time streaming pipelines, and asynchronous communication between distributed services.

KafkaRedisRabbitMQCQRS

Cloud & DevOps

Infrastructure

Cloud-native deployments, CI/CD pipelines, container orchestration, and infrastructure automation for production systems.

DockerK8sAWSGitHub Actions

AI Workflows & Agents

AI/ML

Multi-agent orchestration with LangGraph, RAG pipelines for document intelligence, and autonomous reasoning chains.

LangGraphRAGFastAPILLM Agents

Latest Thoughts & Writing

From the Blog

View all on Medium

Professional Journey

Impact-Driven Career

2024 — Present

Yapı Kredi Technology logo

AI Agent Engineer

Yapı Kredi Technology

Leading AI Agent orchestration using LangGraph for autonomous banking workflows. Architecting DDD-based microservices for next-gen digital banking infrastructure.

AI Agent OrchestrationLangGraph + DDD Architecture
LangGraphDDDSpring BootKafkaAI Agents

2023 — 2024

Getir logo

Senior Backend Engineer

Getir

Engineered high-scale distributed systems serving millions of users. Optimized event-driven pipelines that boosted user engagement by 30% through real-time personalization.

+30%User Engagement Increase
JavaSpring BootKafkaRedisMongoDB

2022 — 2023

Pdmechanics logo

AI & Software Engineer

Pdmechanics

Built real-time AI-powered fault detection systems for industrial equipment. Integrated ML pipelines that delivered 25% efficiency improvement in predictive maintenance workflows.

+25%Efficiency Improvement
PythonFastAPIPyTorchReal-time AIML Pipelines

2021 — 2022

Siemens logo

Software Engineer

Siemens

Developed innovative solutions for factory operations automation. Created monitoring and optimization tools that increased production productivity by 15% across manufacturing lines.

+15%Productivity Increase
JavaSpringReactDockerIoT

Companies & Programs

Yapi Kredi Technology
Getir
Pdmechanics
Siemens
Turk Telekom
Microsoft
Yapi Kredi Technology
Getir
Pdmechanics
Siemens
Turk Telekom
Microsoft
Yapi Kredi Technology
Getir
Pdmechanics
Siemens
Turk Telekom
Microsoft

Tech Stack

Tools & Technologies

5+

Years Backend

3+

AI Systems

22+

Technologies

4

Engineering Domains

Backend6
JavaSpring BootPostgreSQLREST APIsDDDgRPC
AI / ML6
LangGraphPythonFastAPIPyTorchRAGLLM Agents
Infrastructure6
KafkaRedisMongoDBDockerKubernetesSupabase
Frontend4
ReactTypeScriptNext.jsTailwind CSS
JavaBackend
Spring BootBackend
PostgreSQLBackend
REST APIsBackend
DDDBackend
gRPCBackend
LangGraphAI / ML
PythonAI / ML
FastAPIAI / ML
PyTorchAI / ML
RAGAI / ML
LLM AgentsAI / ML
KafkaInfrastructure
RedisInfrastructure
MongoDBInfrastructure
DockerInfrastructure
KubernetesInfrastructure
SupabaseInfrastructure
ReactFrontend
TypeScriptFrontend
Next.jsFrontend
Tailwind CSSFrontend
JavaBackend
Spring BootBackend
PostgreSQLBackend
REST APIsBackend
DDDBackend
gRPCBackend
LangGraphAI / ML
PythonAI / ML
FastAPIAI / ML
PyTorchAI / ML
RAGAI / ML
LLM AgentsAI / ML
KafkaInfrastructure
RedisInfrastructure
MongoDBInfrastructure
DockerInfrastructure
KubernetesInfrastructure
SupabaseInfrastructure
ReactFrontend
TypeScriptFrontend
Next.jsFrontend
Tailwind CSSFrontend
Tailwind CSSFrontend
Next.jsFrontend
TypeScriptFrontend
ReactFrontend
SupabaseInfrastructure
KubernetesInfrastructure
DockerInfrastructure
MongoDBInfrastructure
RedisInfrastructure
KafkaInfrastructure
LLM AgentsAI / ML
RAGAI / ML
PyTorchAI / ML
FastAPIAI / ML
PythonAI / ML
LangGraphAI / ML
gRPCBackend
DDDBackend
REST APIsBackend
PostgreSQLBackend
Spring BootBackend
JavaBackend
Tailwind CSSFrontend
Next.jsFrontend
TypeScriptFrontend
ReactFrontend
SupabaseInfrastructure
KubernetesInfrastructure
DockerInfrastructure
MongoDBInfrastructure
RedisInfrastructure
KafkaInfrastructure
LLM AgentsAI / ML
RAGAI / ML
PyTorchAI / ML
FastAPIAI / ML
PythonAI / ML
LangGraphAI / ML
gRPCBackend
DDDBackend
REST APIsBackend
PostgreSQLBackend
Spring BootBackend
JavaBackend

Let's Connect

Get in Touch

Available for contract work, part-time roles, and exciting AI projects. Let's build something extraordinary together.

Location

Kocaeli, Turkey

Available for

  • Contract / Freelance
  • Part-time Engineering Roles
  • AI Consulting & Architecture
  • Open Source Collaboration