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nejib1/README.md

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.


🧠 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

🚀 Selected Projects

ProjectDescriptionStack
Offres-Travail.com 🏆Largest job listings aggregator in France by volumeBig Data, Search, Automation
Pylon-Monitor.comStandalone WiFi device for remote Pylontech battery monitoring — JSON API, MQTT & native Home Assistant integrationIoT, Hardware, API
Cables-Solaires.com 🏆E-commerce for solar battery cablesE-commerce
Free-LLM.comWorld directory of 40+ free LLM API providersDirectory, Community
SummarizeAPI.comAI text summarization REST API, multilingualNLP, LLM, API
CategorizeAPI.comAI text/content categorization REST API, multi-level classificationNLP, LLM, API
PDF-Summarize.comFree AI-powered PDF summarizer, 15+ languagesNLP, Document Analysis
TextPerfector.comAI-powered writing & grammar correction platformNLP, LLM
TheBookee.netElasticSearch PDF engine with AI-generated summariesOCR, ML, Search
Similars.netSemantic clustering engine indexing 14M+ websitesBig Data, NLP
Rankeez.comReal-time SEO analytics with predictive ML on 32M+ sitesPredictive ML, Big Data
Lizarder.comDeep learning translation engine, 40+ languages, 50M+ translationsDeep Learning, NLP
TrADuck.comHigh-accuracy AI translation for 35+ languagesAI, NLP
XeConvert.comCurrency converter with predictive analytics, 170+ currenciesFinTech, Real-time
L-Actualite.comAI-curated French news with trend detectionIA, Big Data, NLP
Langs.educationAdaptive AI language learning platformEdTech, NLP
StatMemory.comFull web analytics: traffic, SEO, WHOIS, hostingData Mining, Analytics
NejibTech.comOne of the only French stores fully dedicated to AZERTY French-Arabic bilingual keyboards & miceE-commerce, Niche Market
Latest-Headlines.comAI-curated US news platform with real-time trend analysisAI, Content Generation, News
Tunisie.meTunisian news portal using ML to personalize content by reader interestML, Data Processing, News
ResterConnecte.comDaily educational content platform (health, cooking, tech…), AI-generated & auto-validated articlesContent Generation, Automation
Esperance-De-Tunis.comSports platform with a custom ML model for real-time performance analytics, trained on 15+ years of dataCustom ML, Real-time Analytics
Linux-Alternative.comRecommendation engine for Linux alternatives to Windows softwareRecommendation System, ML
FrContext.comFree multilingual encyclopedia, 14 languages, several hundred thousand entriesEncyclopedia, Multilingual, Big Data
PDF-Downloads.netSearch engine specialized in educational PDF documentsSearch Engine, Education
Tarjma.comFast, simple online translation serviceTranslation
Budokan AcademySports club platform, fully dynamic no-code backoffice, news/Telegram API, real-time stats & scheduling (non-profit judo club, not a personal business)Full-Stack, PHP, Automation

🔌 AI & API Products

A family of standalone AI-powered REST APIs and micro-SaaS tools, each shipping its own docs, pricing and developer-first integration — the applied side of the data/AI work above.

API productWhat it does
SummarizeAPI.comMultilingual AI text summarization, REST endpoint
CategorizeAPI.comAI text/content classification & categorization, REST endpoint
TextPerfector.comAI grammar & writing correction
TrADuck.comAI translation, 35+ languages
PDF-Summarize.comAI PDF summarization, 15+ languages
Similars.netWebsite-similarity API backed by a 14M+ site semantic index
Rankeez.comSEO ranking analytics API with predictive ML
Free-LLM.comDirectory & comparison API for 40+ free LLM providers

🛠️ Tech Stack

Data & PipelinesWeb ScrapingSASDatabricksApache SparkElasticsearchAirflowPandasAnaplan

Artificial IntelligenceTensorFlowPyTorchTransformersLangChainHugging FaceOpenAI API

DatabasesPostgreSQLMongoDBRedisClickHousePineconeWeaviate

Cloud & DevOpsAWSGCPDockerKubernetesTerraformGitHub ActionsAxway

LanguagesPythonPHPSQLJavaScript


📈 By the Numbers

15+ years of experience
27+ 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

💬 Let's Talk

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


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

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    Directory of 34+ free LLM & AI APIs — permanent free tiers, trial credits, and no-card options. GPT-4o, Gemini, Claude, Llama, DeepSeek, Mistral & more. Synced daily from the live directory at free…

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    This is a simple way to block anyone from crawling your Website.

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