Software Developer
İstanbul — UTC+03

Eyüp Kemal
Karaoğlu

I lead digital transformation at a logistics group in İstanbul — architecture through deployment, on every internal web and mobile system. Trained at École 42 on C, sockets and containers, which is still how I prefer to think about a problem: from the layer underneath it.

Role
Lead Software Developer
Company
Enco Lojistik
Since
2024.12 — present
Focus
Backend · Infra · Data
Status
Open to conversation

Profile

Two curricula,
26 months overlapping

I took a Computer Programming degree at Karabük Üniversitesi and went through the Common Core at École 42 Kocaeli at the same time — two full curricula running in parallel for most of their length. That is where the discipline came from, and the habit of scheduling work against a deadline I did not set.

42 has no lectures and no teachers: you read unfamiliar systems until they make sense, then defend the result in peer review. I still work that way. Give me a problem and I will take it end to end — architecture, implementation, database, deployment — and I would rather own the whole path than wait to be handed a spec for part of it.

Timeline

2021 — present

2021 2022 2023 2024 2025 2026 2027
Karabük Üniversitesi Associate, Computer Programming 09/2021 – 06/2024
École 42 Kocaeli Common Core 01/2022 – 03/2024
Enco Lojistik Software Development, İstanbul 12/2024 – present

↑ 26 months of both at once

Experience

Enco Lojistik
12/2024 — present
İstanbul

Lead Software Developer & Digital Transformation

Node.jsC#Next.jsFlutter TypeScriptPostgreSQLMariaDBREST
  • Fleet maintenance, mobile A cross-platform Flutter application that moved vehicle maintenance and technical service off paper, integrated with Movetech ERP over REST so inventory and work orders stay in sync automatically.
  • AI assistant A retrieval-augmented chatbot on Gemini Pro, with a pipeline that ingests corporate documentation into a vector store so answers are grounded in what the company actually wrote down.
  • Backend & database design Scalable services in Node.js and C#, with PostgreSQL and MariaDB schemas and queries tuned against real performance requirements.
  • BI dashboards Interactive Next.js dashboards that pull fragmented data out of APIs and Excel exports and turn it into graphs and scheduled reports people read.
  • Ownership Sole responsibility for digital transformation across the group and its subsidiaries — the full lifecycle of every internal web and mobile application, from architecture to server deployment.

Selected Work

École 42
2022 — 2024

Real-time multiplayer Pong platform

DjangoDRFWebSocketsJavaScript PostgreSQLDocker Compose
  • A full-stack Pong platform with JWT-based two-factor authentication and secure account management.
  • A REST API in Django REST Framework, with WebSockets carrying low-latency game state and live chat.
  • Docker Compose for the whole stack, so development and production ran the same environment.
  • PostgreSQL tuned for the stateful side of the product: profiles, match history and global rankings.
  • Built under Agile ceremonies — sprint planning, and code quality held up by rigorous peer review.

Internet Relay Chat server↗ Source

C++BSD socketsMultithreading
  • An IRC server written from scratch, speaking the protocol well enough for real HexChat clients to connect.
  • Command handling, message routing between users and channels, and the socket programming underneath it.
  • Real-time parsing and threading logic, where the hard part is what happens when input arrives half-formed.

Inception of Things — GitOps infrastructure

K3sArgoCDVagrantHelmNginx
  • A multi-node K3s cluster provisioned with Vagrant, with separate control planes and workers to mirror a production distributed environment.
  • A GitOps pipeline through ArgoCD: deployment and synchronisation between GitHub manifests and the cluster fully automated.
  • Nginx Ingress controllers configured for traffic routing, SSL termination and external access to containerised services.
  • Modular Helm charts and Kubernetes manifests, so deployments are standardised and the infrastructure state stays declarative.
  • Automated rollouts and health monitoring, cutting manual intervention out of the release path.

Toolkit

Grouped by
where it sits
in the stack

Languages

  • C
  • C++
  • C#
  • Python
  • TypeScript
  • JavaScript
  • Bash

Web & App

  • Node.js
  • Next.js
  • Django
  • Flutter
  • REST APIs
  • WebSockets
  • HTML/CSS

Infrastructure

  • Linux
  • Docker
  • K3s
  • Helm
  • ArgoCD
  • Nginx
  • Vagrant

Data & AI

  • PostgreSQL
  • MariaDB
  • Vector stores
  • RAG
  • Gemini Pro

Contact

İstanbul
Türkiye

References available on request.