Ali Kemal Seven

01. About Me

Full-Stack Engineer with 10+ years building web applications and SaaS platforms. Specialized in AI/ML systems (YOLOv5/v8, GPT-3.5/4) since 2023. Expert in LLMs, real-time processing, React Native, and enterprise solutions.

I specialize in transforming complex business challenges into elegant, scalable solutions. From building IoT systems with hardware integration and GPU processing to developing multilingual AI chatbots with RAG architecture, I bring a unique blend of technical depth and practical implementation experience.

Currently based in Solingen, Germany, I work with enterprises across Europe, delivering solutions that combine cutting-edge AI with robust software engineering practices.

QUICK FACTS

10+ Years Experience
Computer Science Degree
4 Tealium Certifications
Trilingual (DE/EN/TR)

02. Experience

MAR 2024 - FEB 2025

AI & Computer Vision Engineer

PBW Baden-Württemberg mbH

• Architected YOLOv5/v8 object detection system for license plate recognition
• Developed Flask APIs managing real-time data streams and GPU processing
• Implemented Socket.IO for live data transmission with instant updates
• Built microservices architecture with Docker/Kubernetes for scalability

Python • Flask • PyTorch • CUDA • YOLOv5/v8 • Docker

Parkalyze Pitchdeck

📍 PBW parking facility — Stuttgart / TU Stuttgart • AI camera monitoring project

AUG 2023 - JAN 2024

Marketing Technology Engineer

Douglas Parfümerie GmbH

• Led Google Tag Manager to Tealium migration across 3 countries
• Implemented CDP integrating web, e-commerce, and mobile data
• Conducted analytics using Tealium and Adobe Analytics for insights
• Achieved 4 certifications: Tealium AudienceStream, EventStream, iQ, Zeotap CDP

Tealium • Adobe Analytics • GTM • CDP

Tealium iQ Certificate EventStream Certificate Zeotap CDP Certificate AudienceStream Certificate Reference Letter

DEC 2022 - JUN 2023

Platform Consultant

Zoovu

• Delivered AI-powered product solutions for Fortune 500 clients
• Built configurators for Bosch Power Tools, Dyson, Ottobock, Scosche
• Developed custom analytics dashboards for platform performance
• Integrated platform with external analytics and CRM systems

JavaScript • Analytics • CRM Integration

Reference Letter (EN) Reference Letter (DE)

NOV 2018 – AUG 2022

Web Developer / Technical Consultant

12-05 Solutions GmbH — Solingen

• Developed full-stack projects with React.js, Node.js, and SASS
• Implemented WordPress RESTful API and advanced custom fields
• Provided strategic technology consulting to clients
• Delivered tailored solutions through direct client collaboration

React.js • Node.js • WordPress • SASS • REST API

Arbeitszeugnis

JUN 2017 – SEP 2018

SEO Manager / Technical Consultant

Fairrank GmbH — Köln

• Built attribution models to measure SEO impact on conversions
• Led competitive analysis and performance benchmarking
• Implemented data-driven content strategies from keyword research
• Integrated Google Tag Manager with web analytics platforms

SEO • GTM • Analytics • Content Strategy

FEB 2016 – NOV 2016

Web Developer

Wit Group GmbH — Frechen

• Applied data-driven UX principles to usability testing and prototyping
• Implemented heatmapping and session recording to identify friction points
• Conducted cohort analysis to track post-launch user retention
• Used predictive analytics to guide optimization priorities

UX • Heatmapping • Analytics • HTML/CSS/JS

03. Featured Projects

DEC 2025 - FEB 2026

RAG Chatbot Systems 🔴 LIVE DEMO

LangChain · FAISS · GPT-3.5 · Multilingual

Multilingual AI chatbot for luxury jewelry retailer. RAG system with GPT-3.5, LangChain, FAISS. Processed 200+ FAQs, achieved 99.9% uptime, 2-4s response time, automatic language detection (DE/EN).

GPT-3.5 LangChain RAG FAISS Gradio Docker

Test Chatbot Live

💬 User Question (DE / EN / Auto)

↓

🌐 3-Tier Language Detection
Widget var → API param → langdetect fallback

↓

🧠 OpenAI Embeddings text-embedding-ada-002

↓

📊 FAISS Vector Store — Similarity Search (k=4)
200+ FAQ chunks • cosine distance

↓

⛓ LangChain LCEL — RetrievalQA Chain
Prompt template • context injection • language instruction

↓

✨ GPT-3.5-turbo → Multilingual Response

Endpoint 1 — Add user message

POST /api/user_message data: ["Welche Uhren führen Sie?", [], "de"] → returns: ["", [["Frage", null]]]

Endpoint 2 — Generate bot response

POST /api/bot_response data: [[["Frage", "💭 Einen Moment..."]], "de"] → returns: [[["Frage", "Antwort..."]]]

Transport

Gradio 4.19 REST • JSON • HTTPS (Nginx reverse proxy) Avg latency: 2-4s • Uptime: 99.9% • Docker containerized

🐍

Python 3.11

Runtime

⛓

LangChain LCEL

RAG orchestration

📊

FAISS

Vector similarity

✨

GPT-3.5-turbo

OpenAI LLM

🎨

Gradio 4.19

API & UI layer

🐳

Docker

Containerized deploy

🌐

langdetect

Language fallback

🛡

Nginx

Reverse proxy / TLS

Portfolio Assistant — Live RAG Demo

Same RAG-style assistant pattern as client bots (e.g. VoglAI). Also available via the floating chat button.

2024 - 2025

ExtenSee SaaS

React Native · OpenAI · Multi-Tenant SaaS · GreatLengths

Multi-tenant SaaS platform for AI-powered hair extension visualization. Partner salons show clients a photorealistic preview before purchase — in 30–60 seconds, directly in the salon or on iPad kiosk.

React Native OpenAI Expo Multi-Tenant Node.js PostgreSQL

📱 Salon App (iOS / Android / iPad Kiosk / Web)

↓

🌐 Tenant API
salon1.extensee.com

🌐 Tenant API
salon2.extensee.com

🌐 …
up to 1,000 salons

↓

🖥 Node.js / Python Backend — Multi-Tenant Core
Auth • Tenant isolation • Product catalog • Analytics

↓

✨ OpenAI Image API — Photorealistic Hair Overlay
Selfie + color selection → 30–60s AI visualization

↓

📸 Photorealistic Result → Client sees result before purchase

🤳

1. Selfie

Client photo taken in salon or uploaded

🎨

2. Color Select

Real GreatLengths colors & lengths

✨

3. AI Processing

30–60s photorealistic generation

✅

4. Decision

Client sees result → higher conversion

📊

Analytics Dashboard

Trends by region, color & length

🏷

White-Label

Full GreatLengths brand control

⚛

React Native

iOS / Android / Web

📦

Expo

Cross-platform build

✨

OpenAI API

Image generation

🟢

Node.js

Backend / API

🐘

PostgreSQL

Multi-tenant DB

🐳

Docker / Hetzner

Cloud deployment

🔐

JWT Auth

Tenant isolation

📊

Analytics

Conversion & trend data

2025 - 2026

CallMenu Platform 🔴 LIVE

Agentic Voice AI · Multi-Tenant · FastAPI · Next.js · RAG

Multi-tenant agentic voice AI for restaurants and hotels: callers order or book via natural speech. Tool-calling agents, hybrid RAG (menu + vectors), tenant isolation (PostgreSQL RLS), FastAPI + Next.js, CI/CD to production on Hetzner.

Agentic AI Tool Calling Voice RAG FastAPI Next.js pgvector

Live Voice Demo Hotel Demo

Live demos may require access credentials (ask me).

🎤 Browser Voice Client (WebRTC / Realtime)

↓

🧠 LLM Voice Agent + Prompt Pack (per tenant)

↓

🔧 Tool Calling
cart / menu / booking

📚 Hybrid RAG
menu SQL + pgvector

↓

🖥 FastAPI + PostgreSQL RLS (tenant isolation)

↓

✅ Order / booking result spoken back to caller

🌐

1. Open demo

/demo/{tenant-slug}

🔊

2. Talk

Language choice + natural speech

🔧

3. Tools fire

Menu match, cart, confirm

📋

4. Result

Order summary spoken + UI cart

🐍

Python / FastAPI

API + tools

⚡

Next.js

Sales UI + voice demo

🧠

xAI / OpenAI voice

Realtime agents

📊

PostgreSQL + RLS

Multi-tenant

🔍

pgvector

Hybrid RAG

🐳

Docker / GHCR

CI/CD deploy

🏗

Hetzner

Production host

🔐

Basic Auth

Demo gate (optional)

🍕 Restaurant: forno-volt

🏨 Hotel: esida-otel

📄 Pitch: CallMenu-Pitch-Laien.pdf

DEC 2025 - FEB 2026

Web Scraping System

High-scale Playwright scraper extracting 41 fields/profile across 4 platforms. Achieved 1,000+ profiles/day, 95% success rate. Features: parallel processing, checkpoint system, JSON-LD parsing, automated Excel export.

Playwright Python ETL Automation

MAR 2024 – FEB 2025

Parkalyze

YOLOv5/v8 · EasyOCR · GPT-4o · Flask · Sensor-Free

IoT parking system with hardware integration, GPU processing and cloud architecture. Achieved 98% accuracy with YOLOv5/v8 computer vision. Minimal hardware deployment using ML pipelines for real-time license plate recognition and space detection.

YOLOv5/v8 EasyOCR GPT-4o Flask WebSockets GDPR

📷 Camera Feed (Wi-Fi / PoE) — Multiple streams

↓

🧠 YOLOv5/v8 — Object Detection
Space status (free/occupied) • Vehicle type (SUV/compact/EV)

↓

📝 EasyOCR — License Plate Recognition
+ GPT-4o vehicle make & model identification

↓

⚙ Flask API — SQLAlchemy
Space assignment • Overstay detection • Audit logs

↓

💻 Web Dashboard
HTML5 / WebSockets

🚗 In-Car Nav
HERE / TomTom / Auto

⚠ Signage
On-site displays

🅿

Space Monitor

Live status per slot

⚡

EV Routing

EV detection & charger assignment

🚗

Vehicle Matching

Size-based spot optimization

🗺

Navigation

Route-to-spot via car system

🚨

Enforcement

Overstay & violation alerts

📋

History & Logs

Audit trail per vehicle

👁

YOLOv5/v8

Object detection (PyTorch)

📝

EasyOCR

License plate reading

✨

GPT-4o

Vehicle classification

🐍

Python / Flask

Backend API

🐘

SQLAlchemy

ORM / PostgreSQL

📡

WebSockets

Real-time dashboard

📷

OpenCV / FFmpeg

Video stream processing

🐳

Docker / K8s

Containerized deploy

DEC 2025 - JAN 2026

AI Content Generator

Automated SEO-optimized content generation system with WordPress integration. Built GPT-4 powered engine generating landing pages, blog posts, service descriptions. Implemented 90-day content scheduler with automatic publication. Achieved 80% efficiency gain.

GPT-4 WordPress SEO Automation

04. Tech Stack

AI / Machine Learning

OpenAI GPT-3.5/4 PyTorch CUDA YOLOv5/v8 LangChain FAISS TensorFlow Computer Vision NLP RAG

Backend

Python Flask FastAPI Node.js PHP PostgreSQL RESTful APIs Microservices

Frontend / Mobile

React React Native Expo HTML5 CSS3 JavaScript ES6+ Cross-Platform

Data Engineering

Playwright Selenium BeautifulSoup4 Pandas NumPy Web Scraping ETL

DevOps

Docker Kubernetes AWS Nginx Git CI/CD Linux

Analytics

Tealium AudienceStream EventStream Adobe Analytics GTM CDP

05. Get In Touch

I'm always interested in hearing about new projects and opportunities. Whether you have a question or just want to say hi, feel free to reach out!

Email

ali_kemal_Seven@live.de

+49 1575 7135506

GitHub

aleykeyseven777

Location

Solingen, Germany

Say Hello Download CV (PDF)

01. About Me

QUICK FACTS

02. Experience

AI & Computer Vision Engineer

Marketing Technology Engineer

Platform Consultant

Web Developer / Technical Consultant

SEO Manager / Technical Consultant

Web Developer

03. Featured Projects

RAG Chatbot Systems 🔴 LIVE DEMO

ExtenSee SaaS

CallMenu Platform 🔴 LIVE

Web Scraping System

Parkalyze

AI Content Generator

04. Tech Stack

AI / Machine Learning

Backend

Frontend / Mobile

Data Engineering

DevOps

Analytics

05. Get In Touch

Portfolio Assistant

Request GitHub Access