Software development studio · Türkiye
➜ ~ $ whoami
whodenur
Whodenur is a software development studio from Türkiye — full-stack web apps and object-oriented automation software, plus custom AI (LLM, RAG, fine-tuning) on your own data when you need it.
$ status → available for projects
whodenur shell v1.0 — type help, or tap a command below.
// 01 — services
From first prototype to production — full-stack web and automation software at the core, custom AI when your data calls for it.
Web apps, admin panels and dashboards end to end — Next.js, React, NestJS, FastAPI, PostgreSQL; offline-first PWAs that keep working without a connection.
Management and automation systems built on clean, layered OOP — desktop or web: records, appointments, invoicing, reporting and integrations. C#/.NET, Java, TypeScript.
// class AppointmentService : IService
on new appointment · #1042
✓ all tasks done · 0 manual steps
On request: LLM features, RAG over your own documents with source-cited answers, and fine-tuning on your data — fully local when privacy matters.
? What is the refund window?
Refunds are accepted within 14 days of purchase. [1]
[1] policy.pdf · p.3
Role-based access, audit-ready archives, KVKK/GDPR-aware architecture.
| read | write | export | |
|---|---|---|---|
| admin | |||
| coordinator | |||
| viewer |
audit.log
10:40 coordinator write report#231 ✓
10:41 viewer export report#231 ✗ denied
10:42 admin read archive ✓
sha256 chain ✓ tamper-proof
Company introductions, product ads and campaign visuals produced with generative AI video and image tools — from script to final cut.
✦ 30s product ad · brand colours · upbeat
✓ export ready · 1080p
$ ls ~/stack # Tools we ship with
// 02 — work
Products we designed, built and shipped — many of them born at hackathons, internships and ideathons.
// İHH ATOM Hackathon, Bursa 2026
AI-assisted field reporting system: regional coordinators enter field data, HQ monitors it on a Türkiye map, and AI generates strategic summaries and scorecards. RBAC and a tamper-proof report archive.
// Erasmus+ ideathon, Muş
Offline-first PWA for small livestock farmers: voice-based records for vaccination, breeding, birth, treatment and milk; reminders; blocks the sale of medicated milk.
Desktop app for dietitians: layered architecture with a hand-built DI container; diet plans, weight tracking, appointments, messaging and AI nutrition suggestions.
$ git clone github.com/sudenurozturkk/DiyetisyenOtomasyonu
$ stack C# · .NET 4.8 · DevExpress · MySQL
✓ source code available
// Turkcell CodeNight, Diyarbakır
Digital menu built voluntarily for a local café during Turkcell CodeNight.
$ stack HTML · CSS · JavaScript
✓ live → sudenurozturkk.github.io/dortayaklikafe
// Turkcell CodeNight All Star Final
Personalized campaign platform as microservices behind an API gateway; ML-based subscriber segmentation and conversion prediction, RabbitMQ, SSE, CI/CD.
$ git clone github.com/sudenurozturkk/campaigncell
$ stack NestJS · FastAPI · RabbitMQ · PostgreSQL
✓ source code available
// Microsoft AI Innovators Summer Internship
Medication Guide Assistant — a fully offline RAG system: hybrid search over local embeddings + SQLite, answers with enforced source citations, voice questions via Whisper, and non-LLM safety checks for drug interactions and polypharmacy.
Agentic personal finance advisor: spending anomaly detection, 30-day forecasting, scenario simulations and tool-calling over real data.
$ git clone github.com/sudenurozturkk/KisiselAiFinansAsistani
$ stack Next.js · Gemini · TypeScript
✓ source code available
// HackStellar, 48 hours
Decentralized rental & deposit dApp with Soroban smart contracts, blockchain escrow, a rating system and Freighter Wallet.
$ git clone github.com/sudenurozturkk/SMARTRENTVAULT
$ stack Rust · Soroban · Stellar · React
✓ source code available
Turkish-language health & fitness assistant generating recommendations with a Hugging Face model.
$ git clone github.com/FitTurkAI/FitTurkAI
$ stack Next.js · FastAPI · Hugging Face
✓ source code available
// 03 — journey
Before Whodenur: the path of our founder, Sudenur Öztürk — the internships, hackathons and competitions the studio is built on.
➜ $ tail -f sudenur/journey.log
➜ $ ▍
// 04 — about
Whodenur is a software development studio founded by software engineer Sudenur Öztürk. Born from hackathon nights, internships and real-world problems, we build practical software, fast — web apps and automation at the core, AI where it truly adds value.
AI where it adds value
We use LLMs to solve a real problem — not as a buzzword.
Private by default
Local and offline options, minimal data, clear access rules.
Ship, then iterate
Working software early, improved with real feedback.
Founder-led, team-built
Many of our products were built alongside hackathon teammates. We're growing and open to engineers and designers who want to build with us.
Build with usSudenur Öztürk leads product and engineering at Whodenur. Starting with Python, Sudenur went on to build products with Java, C#/.NET, Next.js/TypeScript, microservices, blockchain and LLM/RAG — through the Microsoft AI Innovators Summer Internship, a BTK internship, an Erasmus+ semester in Poland and national hackathons.
$ cat focus.txt
cybersecurity · offensive security · AI security
$ echo $MOTTO
“Why is it like this? And what happens if…?”
// 05 — contact
Tell us what you are building. Email is the fastest way to reach us.
Based in Türkiye · Working remotely
Sudenur Öztürk · Founder