Web App / Data / SEO
Calculi
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+…
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 / 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
Built a cross-platform appointment & business discovery platform (React Native, Next.js) with multilingual support. Designed scalable backend (Node.js, MongoDB, Docker, Cloud Run) cutting…
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
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 I build with, in the layer of a system it works in. Pick a build to trace the stack it shipped on.
Appointments and business discovery on phones and the web, in several languages. Hosting costs cut 99% with autoscaling and caching; deployment cycles cut 90% with CI/CD. Built with React Native, Next.js, Google Maps, Mapbox, Cloudinary, Technical SEO, Node.js, Socket.IO, MongoDB, Firebase, Docker, Google Cloud Run, GitHub Actions.
Grade calculators, target simulations and the national orientation guide in one installable app, used by more than 151,000 students. Built with PWA, JavaScript, Technical SEO, Node.js, Express.
Fiscal management with role-based access, audit logs, automated documents and dashboards, and anomaly detection on the transactions. Built with React, Inertia.js, Chart.js, Laravel, MySQL, Python, scikit-learn.
A fog city drawn in WebGL, a 3D tour beside it, content from a headless CMS, and a page for every crawler that cannot run it. Built with React, Three.js, Framer Motion, Sass, Sanity, Technical SEO, Netlify, Cloudflare.
Big data, warehousing and machine learning: from raw records to models, and the pipelines that feed them. Built with Python, SQL, PL/SQL, Spark, Hadoop, Hive, ETL pipelines, RAG pipelines, scikit-learn.