Hey, I'm Nejib BEN AHMED 👋

Lead Data Engineer · Full Stack · AI

Turning raw data into powerful engines. 15+ years building data infrastructure that actually scales.

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🧠 What I Do

I design and build robust data systems — from large-scale ETL/ELT pipelines and intelligent web scrapers to AI-powered applications in production. My work sits at the intersection of data engineering, full-stack development, and applied AI.

• 📦 Architecting ETL/ELT pipelines at scale
• 🕷️ Web scraping & intelligent data collection
• 📊 Enterprise-grade reporting systems used by millions
• 🤖 Fine-tuning LLMs and building AI-powered products
• 🌐 Full-stack development with PHP, Python & modern tooling

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🚀 Selected Projects

Project	Description	Stack
Offres-Travail.com 🏆	Largest job listings aggregator in France by volume	Big Data, Search, Automation
Free-LLM.com ✨	World directory of 40+ free LLM API providers	Directory, Community
SummarizeAPI.com ✨	AI text summarization REST API, multilingual	NLP, LLM, API
PDF-Summarize.com ✨	Free AI-powered PDF summarizer, 15+ languages	NLP, Document Analysis
TheBookee.net	ElasticSearch PDF engine with AI-generated summaries	OCR, ML, Search
Similars.net	Semantic clustering engine indexing 14M+ websites	Big Data, NLP
Rankeez.com	Real-time SEO analytics with predictive ML on 32M+ sites	Predictive ML, Big Data
Lizarder.com	Deep learning translation engine, 40+ languages, 50M+ translations	Deep Learning, NLP
TrADuck.com ✨	High-accuracy AI translation for 35+ languages	AI, NLP
XeConvert.com	Currency converter with predictive analytics, 170+ currencies	FinTech, Real-time
Cables-Solaires.com 🏆	E-commerce for solar battery cables	E-commerce
L-Actualite.com ✨	AI-curated French news with trend detection	IA, Big Data, NLP
Langs.education	Adaptive AI language learning platform	EdTech, NLP
StatMemory.com	Full web analytics: traffic, SEO, WHOIS, hosting	Data Mining, Analytics

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🛠️ Tech Stack

Data & Pipelines Web Scraping SAS Databricks Apache Spark Elasticsearch Airflow Pandas Anaplan

Artificial Intelligence TensorFlow PyTorch Transformers LangChain Hugging Face OpenAI API

Databases PostgreSQL MongoDB Redis ClickHouse Pinecone Weaviate

Cloud & DevOps AWS GCP Docker Kubernetes Terraform GitHub Actions Axway

Languages Python PHP SQL JavaScript

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📈 By the Numbers

15+   years of experience
22+   active projects
10M+  users reached
50+   technologies mastered
170+  currencies tracked in real-time
50M+  translations processed
32M+  websites analyzed daily
14M+  sites indexed in semantic search

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💬 Let's Talk

I'm open to data engineering missions, AI consulting, full-stack contracts, and strategic collaborations.

• 🌐 nejib.com
• 💼 linkedin.com/in/nejib1
• 📍 Paris, France
• 📞 +33 6 42 53 80 35

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"Data is the raw material. Architecture is the craft. Impact is the goal."