Web App / Data / AI
CrocoJobs: AI Job-Market Platform
An end-to-end AI platform for the Tunisian job market: seven sources collected and enriched automatically into 20,000+ postings, served as semantic search, salary estimates, live market…
Full-Stack Engineer & Data Engineering Student
Bridging the gap between scalable software and intelligent data.
Quiet focus. Precise action. Consistent progress.
I’m Ali Abdelkader Aydi, from Sfax, Tunisia. My journey is defined by a relentless pursuit of knowledge.
I combine software craftsmanship with data engineering to design, scale and deploy intelligent platforms, from cloud-native backends to modern RAG and ETL pipelines.
Whether it’s Node.js with Express, Laravel, or even Flask, I excel at crafting efficient and scalable systems with precision. I apply SOLID principles and proven design patterns to ensure industry-best practices in every project.
As a front-end developer, my work isn’t limited to the web. Thanks to my expertise in JavaScript and its ecosystem, I build cross-platform solutions for mobile and desktop using React, Next.js, React Native, and even Electron.js.
I optimize your website to improve search engine rankings, increase organic traffic, and boost overall online visibility. My work covers technical SEO, on-page optimization, site performance tuning, keyword research, structured data, mobile-first optimization, and content strategy—helping your site rank higher and convert better.
Proficient in SQL and its extensions such as T-SQL, and experienced with ORMs, Python, and DBT. Strong knowledge of data warehousing and big data technologies including Hadoop, Spark, and Airflow. Experienced with cloud platforms like GCP and Azure. I excel at data modeling, building ETL/ELT pipelines, and working with both SQL and NoSQL database systems.
I am an AI developer combining my software engineering skills with ML, NLP, and RAG advanced tech to create practical, intelligent platforms. I build and integrate AI models into real applications and deploy them using Flask for fast, reliable delivery.
Things I build, end to end
Web App / Data / AI
An end-to-end AI platform for the Tunisian job market: seven sources collected and enriched automatically into 20,000+ postings, served as semantic search, salary estimates, live market…
Web App
A bilingual Arabic and French news platform for an independent Tunisian journalist, owned end to end: articles that translate and reach Facebook on their own, a social card studio wired to…
Web App / Data / SEO
A PWA used by 151,000+ Tunisian students: university and Bac grade calculators, target-grade simulations, and the full national orientation guide, extracted from a 203-page PDF into 870+…
Web App / Mobile App
A discovery and booking platform for Iraq, live on the web, iOS and Android. Customers find salons, clinics and local businesses on a map and book a free time slot; businesses run services,…
Infrastructure / DevOps / Security
An old desktop PC, cleaned and rebuilt into a Debian home server that runs my own cloud, office suite, mail, private DNS and an automated media library: 21 containers, every app private to…
Web App / SEO
Two publications from one custom CMS: an Arabic RTL blog for Tunisian students and Invariant, an English engineering publication, with a shared render pipeline for mixed-direction text,…
Web App / SEO
Website and back office for an IT solutions company in Sfax: a fast French catalogue of 160+ products and 9 services, plus a custom CMS with roles and 2FA, a client and supplier CRM, and…
Web App
A free project for Bouzayen primary school in Sfax: a small Arabic website and blog for the school's news, plus an eco platform where pupils learn about their environmental footprint…
Web App
My bachelor’s capstone in Management Information Systems: a Laravel, Inertia and React platform that takes tax files from receipt to a signed committee decision, with role-based access, a…
Web App / SEO
My own portfolio, two ways in: a scroll through a fog city drawn live in the browser, where every section is its own scene, and Room 404, a building to walk through room by room in 3D. One…
Sep 2024 – Apr 2025
Ahjez SaaS Platform | Remote (France)
Feb 2024 – Jul 2024
Pixel Pro Agency | Sfax, Tunisia
2024-2026
FSEGS
Focused on Data Engineering and AI: covering big data ecosystems (Hadoop, Spark, Hive), advanced SQL (T-SQL, PL/SQL), OLAP, BI, and KPI design.
Trained in machine learning and AI fundamentals, including statistics, probability, regression, classification, deep learning, and NLP, with a strong emphasis on model testing and evaluation.
Also studied data ethics, governance, and marketing fundamentals.
2021-2024
FSEGS
Graduated in the Top 10% with a BSc in Business Computing: The program emphasized mathematics, logic gates, and hardware architecture fundamentals.
Strong focus on SQL, object-oriented programming (OOP, SOLID, UML), and algorithmic problem-solving using C—covering trees, stacks, queues, graphs, and complexity theory (P, NP, optimization, dynamic programming).
Also gained a solid understanding of concepts such as Turing machines and memory management.
Every tool and method my builds and studies stand on, one floor for each layer of a system, every window lit by how deep I go. Light up a build, or open any skill for its file.
Seven job sources scraped, cleaned and enriched every night into 20,000+ postings, served as semantic search, salary estimates, market analytics and a RAG agent, on $0 a month of infrastructure. Skills: Next.js, React, TypeScript, Tailwind CSS, Apache ECharts, LaTeX, FastAPI, JWT & OAuth, Python, SQL, PostgreSQL, pgvector, DuckDB, ETL pipelines, Web scraping, Machine learning, AutoGluon, MLflow, LangGraph, RAG & AI agents, Hugging Face, Docker, GitHub Actions, Apache Airflow, Cloudflare, Supabase, Render, Git & GitHub, OOP & SOLID, Design patterns, Layered architecture, Data modelling, Testing & verification, Security by design, Performance, CI/CD, MLOps & LLMOps, Cost-aware architecture, End-to-end ownership, Product thinking.
An old desktop rebuilt into a Debian server that runs my own cloud, office suite, mail, private DNS and media library: 21 containers, every app private to my own devices over a VPN. Skills: Linux (Debian) & Bash, Networking (TCP/IP, DNS, VPN), Docker, Portainer, Nginx & reverse proxies, TLS & Let’s Encrypt, Tailscale (WireGuard), Nextcloud, Cloudflare, Security by design, Self-teaching, End-to-end ownership.
An Arabic and French newsroom run by one journalist: articles translate and reach Facebook on their own, and the hosting has carried 1,000,000+ visitors for a few dollars a month. Skills: HTML & CSS, JavaScript (ES6+), Tailwind CSS, Sass, i18n & right-to-left, Cloudinary, Make.com, Node.js, Express, EJS, JWT & OAuth, MongoDB, Google Cloud Run, Security by design, Performance, CI/CD, Cost-aware architecture, Client advising, End-to-end ownership, Arabic, French.
A free Arabic website and blog for a primary school in Sfax, and an eco platform where pupils learn their environmental footprint through a map of Tunisia, quizzes and games. Skills: HTML & CSS, JavaScript (ES6+), React, i18n & right-to-left, Cloudinary, Node.js, Express, EJS, MongoDB, Arabic.
An Arabic right-to-left blog for students and an English engineering publication, published from one custom CMS with a shared pipeline for mixed-direction text, code and LaTeX. Skills: HTML & CSS, JavaScript (ES6+), Technical SEO, i18n & right-to-left, Cloudinary, LaTeX, Node.js, Express, EJS, MongoDB, Docker, Google Cloud Run, Cloudflare, Performance, Progressive enhancement, Arabic, English.
A French catalogue of 160+ products and 9 services for an IT company in Sfax, and the back office the team runs the business from: a CMS with roles and 2FA, a CRM, and stock valued across several warehouses. Skills: React, Next.js, Tailwind CSS, Framer Motion, Technical SEO, Node.js, JWT & OAuth, MongoDB, Vercel, Cloudflare, Data modelling, Security by design, French.
Discovery and booking on the web, iOS and Android, in Arabic, English and French. Hosting costs cut 99% with autoscaling and caching; deployment cycles cut 90% with CI/CD. Skills: HTML & CSS, JavaScript (ES6+), React, Next.js, React Native & Expo, Tailwind CSS, Sass, Framer Motion, i18n & right-to-left, Technical SEO, Cloudinary, Google Maps, Mapbox, Node.js, Express, Socket.IO, JWT & OAuth, Firebase, MongoDB, Docker, Google Cloud Run, GitHub Actions, Cloudflare, Vercel, Git & GitHub, Testing & verification, Security by design, CI/CD, Agile delivery, Cost-aware architecture, Client advising, End-to-end ownership, Teamwork & code review, Self-teaching, Arabic, English, French.
Tax files from receipt to a signed committee decision: role-based access, a full audit trail, committee scheduling and minutes generated as signed PDFs. Skills: HTML & CSS, JavaScript (ES6+), React, Inertia.js, Material UI, Tailwind CSS, Chart.js, PHP, Laravel, SQL, MySQL, Git & GitHub, OOP & SOLID, Design patterns, Layered architecture, Data modelling, Testing & verification, Security by design, End-to-end ownership, Self-teaching, French.
Two ways through one body of work: a scroll through a fog city drawn live in the browser, and Room 404, a building to walk room by room in 3D. Content from a headless CMS, and a readable page for every crawler. Skills: HTML & CSS, JavaScript (ES6+), React, Sass, Framer Motion, Three.js, WebGL & GLSL, Web Audio, Blender, Technical SEO, Sanity, Netlify, Cloudflare, Git & GitHub, Performance, Progressive enhancement, End-to-end ownership, English.
Grade calculators, target simulations and the national orientation guide, extracted from a 203-page PDF into 870+ pages: used by 151,000+ students, 80% of them arriving from search. Skills: HTML & CSS, JavaScript (ES6+), Progressive Web Apps, Technical SEO, i18n & right-to-left, Cloudinary, Node.js, Express, EJS, JWT & OAuth, MongoDB, ETL pipelines, Docker, Google Cloud Run, Cloudflare, Testing & verification, Security by design, Performance, Cost-aware architecture, Progressive enhancement, End-to-end ownership, Product thinking, French, Arabic.
Big data ecosystems, advanced SQL, OLAP, BI and KPI design; statistics, machine learning, deep learning and NLP, with testing and evaluating models at the centre. Skills: Python, SQL, PL/SQL & T-SQL, Hadoop, Spark, Hive, OLAP & BI, ETL pipelines, Machine learning, scikit-learn, Data modelling.
Mathematics, logic and hardware fundamentals; SQL, object-oriented design with SOLID and UML, and algorithms in C, from trees and graphs to complexity and dynamic programming. Skills: C, SQL, OOP & SOLID, UML, Algorithms & data structures.
Hadoop administration and Hive analytics, AI and machine learning fundamentals, a web developer bootcamp, React with Redux and GraphQL, SEO, ethical hacking, and English at C2. Skills: Hadoop, Hive, SQL, Machine learning, React, GraphQL, JavaScript (ES6+), English, Security by design, Technical SEO, HTML & CSS, Node.js, Express, MongoDB, Self-teaching.
My first hackathon and my first time on a stage: 24 hours straight, alone against teams, on a brief to bring AI to the environment of a smart city, Sfax. My answer, AI for urban waste management in Sfax, took second place. Skills: Working under pressure, Pitching & presenting, End-to-end ownership, Product thinking.
A team of four: we negotiated the idea until all of us stood behind it, split the work and kept the collaboration smooth to the end, and took third place. Skills: Leading a small team, Teamwork & code review, Pitching & presenting, Product thinking.