---
title: "About - Furkan Baytekin"
description: "Product-oriented developer who owns end-to-end systems from architecture to production."
url: "https://furkanbaytekin.dev/about"
author: "Furkan Baytekin"
---

# Furkan Baytekin

## About

![Furkan Baytekin](https://furkanbaytekin.dev/static/icons/android-chrome-512x512.png)

Product-oriented developer who owns end-to-end systems from architecture to production. Designs and implements high-performance RESTful APIs and backend services with authentication, caching, validation, and database integration in Go and Node.js. Builds cost-efficient modular monoliths and multi-tenant platforms on Linux. Active technical content creator with 160+ published blog posts, 90+ YouTube videos, and a Udemy course. Strong communication from language education background bridges tech and non-tech staff.

## Languages

Go, TypeScript, JavaScript, C#, Python, Bash, SQL, GraphQL, HTML, CSS, GDScript, AWK, MDX, Roff, Pug, Lua

## Tech Stack

- **Frontend**: Next.js, React.js, Solid.js, Zustand, Redux, Tailwind CSS, SASS
- **Backend**: Go (Chi, Concurrency, Middleware), Nest.js (REST APIs), Node.js (Express.js), Django, Flask, Strapi (Headless CMS)
- **Infra & DevOps**: Docker, GitHub Actions, GitLab CI, Systemd, Caddy, Nginx, Cloudflare, Monitoring & Statistics, Backups
- **Databases**: SQLite, PostgreSQL, Redis, MYSQL, MSSQL, MongoDB
- **Test & Automation**: Go Test, Jest, Selenium
- **API & Backend Concepts**: HTTP, OAuth2, JWT (RSA, JWKS), Input Validation, API Versioning, REST API & CRUD, RBAC & API Security, Rate Limiting, Swagger / Postman

## What I Know

- System Design & Architecture
- React / Next.js Frontend Architecture
- Modular Monolith & Multi-tenant Design
- RESTful API Design, Versioning & CRUD
- Authentication & Authorization (JWT, RSA, JWKS, OAuth2, SSOT)
- Performance Optimization & Caching (Memory, Disk, HTTP, E-Tag)
- Database Migration & Schemas
- Queue Systems & Background Jobs
- CI/CD & Infrastructure Automation
- Linux-based Production Environments

## Experience

### Developer, UNOG

*Sep 2026 - Present*

- Developed open source Team Task Manager and implemented to Authentik to use among team members country wide.

### Event Coordinator & Developer, Godot OGT

*Jul 2026 - Present*

- Organized and moderated events with team members for community.
- Developed CMS and web playable game upload system, managed server and network.

### Software Specialist, IC HOLDING

*Mar 2026 - Present*

- Writing inhouse projects, managing server, creating improved UX for colleagues.

### Product Owner & Software Architect, Oyun Sektörü Etkinlikleri

*Jan 2026 - Present*

- Architected the whole platform (**Go backend**, **Go CMS**, public website, **React Native** mobile app and **React** web app) to run on a **single Linux server with 1 vCPU, 2GB RAM and 20GB storage**.
- Designed authentication with **Google and Apple OAuth**, **JWKS**-verified tokens, **Bearer** auth for mobile, **cookie** auth for web, and **Redis**-backed refresh tokens.
- Secured traffic between the website, CMS and backend with **IP whitelisting**, **CORS protection** and an **X-Secret-Key** header.
- Stored users and events in **PostgreSQL**, CMS content in **SQLite**, and cached events in **Redis**.
- Served all traffic through **Cloudflare Tunnel** and the **Caddy** reverse proxy.
- Set up a **GitHub Actions** pipeline that pushes built versions to a deploy script for **systemd-based Blue/Green** zero-downtime releases.
- Automated **encrypted rsync backups** to an off-site backup server with a cron job, and archived old logs as **gzipped JSONL**.
- Integrated **AWS SES** for transactional email.

### Lead Product Developer, Abonesepeti

*2025 - Present*

- Designed and built 7 Nest.js **microservices** with **RESTful API endpoints**, then consolidated into 1 **modular monolith** to reduce infrastructure overhead.
- Built **versioned RESTful APIs** with **JWT (RSA/JWKS)** authentication and **Swagger/OpenAPI** documentation across all platform services.
- Migrated from per-tenant Vercel deploys to a single Host-header-based **multi-tenant API server** with **~15MB** memory usage with Go.
- Re-architected the entire platform to run within a single **ARM-based Linux server with 2GB RAM**. Reduced hosting costs by 90%.
- Built custom **Go web framework** with built-in **routing, middleware, API layer**, due to CVEs. Reduced RAM usage from **300MB to 15MB, bandwidth by ~95%, response times by 60%**.
- Reduced **CI build times from ~3 minutes to ~3 seconds** using Go's native compilation and implemented near-instant service restarts via systemd.
- Designed automated **image resizing pipeline** converting uploads to WebP to **reduce bandwidth usage by ~75-80%** and improve load performance.
- Implemented **Blue-Green** and **Rolling Update/Rollback** deployment strategies with **automated updates** for zero-downtime releases.
- Managed **ARM-based Linux** production infrastructure, **reverse proxy** configuration (Caddy), and full **CI/CD automation** end-to-end.
- Developed a shared **React-based UI component library** used across multiple internal projects, **improving development speed (~30%)**, creating a consistent UX.

### Full Stack Developer, Abonesepeti

*2024 - 2025*

- Rewrote the website using **GraphQL API** and **Next.js** with server-side data fetching.
- Developed **automation tools** including **PDF and WebP generation**.
- Built lead-page infrastructure with **webhook API integrations** and real-time updates using Vercel.
- Adapted the web application into İş Bankası İşCep **mini-app via API integration** (+8,000 active users).

### Frontend Developer, Abonesepeti

*2023 - 2024*

- **Rebuilt web application** using **Next.js** and **Tailwind CSS**.
- Increased **uptime from ~90% to ~99.99%**.
- Reduced release time from **30 to 7 minutes** through **CI/CD improvements**.
- Improved organic traffic through **technical SEO optimization.**

## Education

- **Anadolu University**, Web Design and Development (A.D.), 2021 - 2023
- **Gazi University**, Turkish Language Education (B.A.), 2019 - 2023