Hello, I'm

Sofyen Nefzi

Full-Stack Developer | Angular, Spring Boot,
Python & n8n Automation

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About Me

Experience

6 months
Full-Stack Development at CNSS

Education

1- Bac Informatique
2- Licence en Business Computing (ESEN)

I am a creative developer who enjoys pushing boundaries and finding innovative solutions. With strong communication skills and a collaborative nature, I thrive in team environments. My critical thinking helps me analyze situations effectively, and I consistently meet deadlines to deliver quality results on time.

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Skills

Backend Development

Spring Boot (Java)

Oracle Database

PostgreSQL

REST APIs

Spring Security & JWT

JavaMail (Email Recovery)

Frontend Development

Angular (TypeScript)

HTML/CSS

JavaScript

Bootstrap

Other Skills

Python

PHP

Linux

Git & GitHub

Docker

Certifications

Google Cybersecurity

Professional Certificate

Microsoft Azure

Cloud Services

Spring Boot (Coursera)

IoC, DI, MVC & REST

English (B2)

EF SET

Browse My Recent

Projects

ESEN Joker Club

University club promotional website

🃏 ESEN Joker Club Website

Designed and developed the official website for our university's Joker Club. Features include event calendars, member profiles, and photo galleries. Implemented responsive design for all devices and optimized loading times.

HTML5 CSS3 JavaScript Bootstrap

Hotel Booking

Complete reservation system

🏨 Hotel Booking System

A comprehensive hotel management system with room booking functionality, admin dashboard, and payment integration. Developed as my final year project with secure user authentication and database management.

PHP MySQL JavaScript jQuery

Gourmet Restaurant

Elegant dining website

🍽️ Gourmet Restaurant

Modern restaurant website with online reservation system, interactive menu, and food gallery. Focused on creating an elegant UI with smooth animations and intuitive navigation for the best user experience.

React CSS Modules Node.js

YouTube Downloader

Video download application

📥 YouTube Video Downloader

Desktop application that downloads YouTube videos in multiple formats and resolutions. Includes progress tracking, playlist support, and quality selection options.

Python Tkinter Pytube

Ping Pong

Classic arcade game

🏓 Classic Ping Pong

A retro-style ping pong game with score tracking, difficulty levels, and multiplayer support. Built to understand game physics and real-time user input handling.

Python Turtle Game Dev

Tic Tac Toe

AI-powered game

❌⭕ AI Tic Tac Toe

Classic Tic Tac Toe with adjustable AI difficulty. Features include score history, player vs player mode, and responsive design that works on both desktop and mobile devices.

JavaScript Minimax Algorithm Responsive Design

Task Flow

Productivity Management Platform

✅ Task Flow

Full-stack productivity application with user authentication, project management, and task tracking. Features a responsive dashboard with productivity insights, priority-based task organization, and intuitive project categorization for seamless workflow management.

Spring Boot Angular MySQL JWT TypeScript

Job Search Automator

AI-Powered Recruitment Assistant

🤖 Job Search Automator

Intelligent automation system that streamlines job hunting by scraping relevant positions, analyzing job-description fit with AI, generating personalized cover letters, and organizing opportunities in a centralized dashboard. Revolutionized my job search process with smart automation and data-driven matching.

n8n AI Integration Web Scraping Google Sheets API Prompt Engineering

Explore In-Depth

Featured Project: CNSS Data Management Platform

💼 Full-Stack Web Application - CNSS Tunisia (2025)

As part of my internship at the Caisse Nationale de Sécurité Sociale (CNSS) in Tunis (MED 5), I developed a secure web-based application for internal data management and automation.

🔧 Backend: Spring Boot, REST APIs, Spring Security, JWT
🎨 Frontend: Angular (TypeScript), HTML5, CSS3, Bootstrap
⚙️ Core Feature: API Middleware to auto-extract and populate databases

API Integration Interface

Data Visualization Dashboard

Advanced Data Filtering

Data Loading Panel

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Featured Project: CNSS Admin CRUD System

💼 Admin Management System - CNSS Tunisia (2025)

Developed a comprehensive admin dashboard with full CRUD functionality for user and data management.

Complete user management dashboard
Create/Read/Update/Delete operations
Advanced filtering and sorting
Bulk data import/export
Activity audit logs

Admin Login Panel

User Management Dashboard

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Featured Project: ESEN Digital Library System

📚 Full-Stack Library Management System (2025)

Developed a comprehensive digital library platform for ESEN featuring advanced book management, dual-role authentication, and seamless borrowing processes.

Secure role-based authentication system
Complete book lifecycle management
Interactive book discovery interface
Automated loan tracking system
Real-time user administration
Cross-device responsive design

Tech Stack:

HTML5 CSS3 JavaScript PHP MySQL

Interactive Book Catalog with Advanced Filtering

Complete Book Management CRUD Interface

Modern Library Information Portal

Secure Multi-Role Login System

Personalized User Dashboard After Login

Streamlined Book Loan Process

Integrated Book Purchase Module

Comprehensive Administration Control Panel

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Featured Project: E-Commerce Analytics Dashboard

📊 Full-Stack E-Commerce Analytics Platform (2024)

Developed a comprehensive e-commerce analytics dashboard featuring real-time performance tracking, customer behavior analysis, and campaign management for online businesses.

Real-time sales performance monitoring
Abandoned cart tracking and analysis
Customer acquisition cost (CAC) calculations
Product performance analytics
Advertising campaign ROI tracking
Customer segmentation and behavior analysis

Tech Stack:

Spring Boot Angular Oracle HTML5 CSS3 TypeScript

Main Dashboard with Performance Metrics

Product Performance Analytics

Customer Segmentation & Analysis

Advertising Campaign Performance Tracking

Explore My Automation

Featured Project: AI Agent Web Scraping

🤖 AI-Powered Web Scraping Agent (2025)

Developed an intelligent automation system that scrapes business data from multiple platforms through natural language commands. The AI agent understands requests and automatically selects the appropriate scraping tool for Google Maps, Yellow Pages, Apollo, and social media platforms.

Natural language processing for command interpretation
Multi-platform scraping (Google Maps, Yellow Pages, Apollo, Instagram, TikTok)
Automated data aggregation and cleaning
Real-time results delivered to Google Sheets
Intelligent tool selection based on query context
Apify integration for scalable web scraping

Tech Stack:

n8n OpenAI GPT-4 Apify Google Sheets API JavaScript REST APIs

Google Maps Integration in n8n

The Main Project and The Execution

Google Sheet Result

Apify Scraping

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Featured Project: YouTube Downloader

📥 Python YouTube Downloader (2025)

I designed and developed a Python-based web app that lets users download YouTube videos or extract audio through a clean, user-friendly interface. Built for reliability, maintainability, and easy deployment.

Built with Python and Flask
Integrated FFMPEG for high-quality media processing
Secure environment variable management (dotenv)
Clean, modular project structure with full documentation
Automated downloads folder handling & cleanup
Professional open-source repository setup (issues, CI-ready)

Tech Stack:

Python Flask FFMPEG dotenv JavaScript REST APIs

YouTube Downloader home screen with URL input

Clean Flask UI

Download options for video and audio formats

Video/Audio Options

FFMPEG Processing

Explore My Automation

Featured Project: AI-Powered Restaurant Analytics Chatbot

🤖 Restaurant Analytics Chatbot (2025)

A production-ready Flask web application that brings natural-language analytics to restaurant operations. Ask about revenue, margins, menu performance, staffing, and more — the chatbot connects to your MySQL database, interprets questions via LangChain + GPT-4o-mini, and returns instant, actionable insights with interactive dashboards.

Built with Python and Flask
Natural language SQL via LangChain + GPT-4o-mini (with Gemini fallback)
Secure DB access using SQLAlchemy + environment variables (dotenv)
Interactive charts and KPIs powered by Chart.js
Modular, maintainable project structure with documentation
Production-friendly configuration and CI-ready repository

Tech Stack:

Python Flask LangChain OpenAI GPT-4o-mini Google Gemini MySQL SQLAlchemy Chart.js dotenv

Live Demo Repository

Chat Interface

Conversation with AI assistant responding to analytics questions

Chat with AI Assistant

AI-generated analytics dashboard with KPIs and charts

AI‑Generated Dashboard

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Featured Project: AI-Powered Job Application System

🧠 Apply to 100+ Jobs in Minutes (2025)

A fully automated workflow that finds roles, scores fit, writes custom cover letters, and logs everything—end to end. Built with n8n, Apify, OpenAI, and Google Sheets, it scrapes job boards, evaluates each posting against my skills, generates a tailored letter, and stores structured results for one-click outreach.

Apify Actor scrapes Indeed (LinkedIn/ZipRecruiter coming next)
Fit scoring + letter generation via OpenAI GPT-4
Orchestrated in n8n with scheduled runs
Results (title, link, salary, description, letter) saved to Google Sheets
Personalized cover letters with company-aware context
Scales to 100+ targeted applications in minutes

Tech Stack:

n8n Apify OpenAI GPT-4 Google Sheets HTTP APIs JSON

n8n workflow chaining Apify, OpenAI, and Google Sheets

n8n Orchestration

Apify actor recent runs showing successful scrapes

Apify Actor Runs

Apify run output with parsed job postings

Parsed Job Results

Google Sheets database with titles, links, salaries, and letters

Structured Sheet

Explore My HealthTech Project

Featured Project: Clinic Management System

🏥 Full-Stack Clinic Management System (2025)

I developed a full-stack web application designed to help dental and medical clinics streamline their daily operations. The system combines clean architecture, strong security practices, and a user-friendly interface to simplify appointment scheduling, patient management, and payment tracking.