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Mats914/README.md

Hi 👋 I'm Mats Alleji

🚀 Junior Full-Stack Developer | React • TypeScript • Node.js • MongoDB
📍 Stockholm, Sweden
📧 mats.alleji@hotmail.com
🔗 LinkedIn
🌐 Portfolio: https://matsalleji.cloud
💻 GitHub

👨‍💻 About Me

I am a Junior Full-Stack Developer with hands-on experience building modern web applications using React, TypeScript, Node.js, and MongoDB.

I focus on clean, maintainable code and scalable REST APIs with secure authentication (JWT).
I enjoy solving real-world problems, learning new technologies, and contributing to structured Agile development environments.

Microsoft Certified (AZ-900, AI-900, PL-900) with additional background in Python, AI fundamentals, and DevOps principles.

🛠 Tech Stack

Frontend

React • TypeScript • JavaScript (ES6+) • HTML5 • CSS3 • Tailwind CSS

Backend

Node.js • Express.js • REST APIs • JWT Authentication

Databases

MongoDB • Firebase • SQLite • SQL (basic)

AI & Python

Python • Pandas • Scikit-learn • Jupyter Notebook

Tools & Cloud

Git • GitHub • Postman • Docker (Foundations) • Azure Fundamentals • Agile/Scrum

💼 Experience

Frontend Developer (Internship)

Junico AB – Stockholm | 2023

  • Developed UI components in React for the redesign of Lärform MENTOR
  • Collaborated with UX designer using Figma
  • Improved mobile usability by 25%
    🔗 Project Repository

SEO Specialist (Internship)

Sveriges Talare – Stockholm | 2024

  • Performed keyword research and technical SEO optimization
  • Improved organic visibility and site structure

IT Administrator & Technician

Vetlanda & Eksjö Municipalities | 2017 – 2022

  • Managed IT support and system administration
  • Contributed to IT security documentation and improvements

🚀 Featured Projects

🔹 Full-Stack Web Application
React • TypeScript • Node.js • MongoDB • JWT • i18n
🔗 https://github.com/Mats914/Fullstack-Web-Application

🔹 Portfolio Website
React • TypeScript • Tailwind
🔗 Live: https://matsalleji.cloud
🔗 Code: https://github.com/Mats914/my-portfolio

🔹 Machine Learning Spam Detection
Python • Scikit-learn
🔗 https://github.com/Mats914/Machine-learning

🎓 Education

Full-Stack Developer (JavaScript) – IT-Högskolan (2022–2024)
Bachelor of Laws – Der Elzor University

📜 Certifications

Microsoft Azure Fundamentals (AZ-900)
Microsoft Azure AI Fundamentals (AI-900)
Microsoft Power Platform Fundamentals (PL-900)

🌍 Languages

Swedish – Fluent
English – Advanced

Pinned Loading

  1. Node-js-express-mongodb Node-js-express-mongodb Public

    Node.js web application using Express and MongoDB with MVC structure and EJS templates

    EJS

  2. LIA-Project-Mentor LIA-Project-Mentor Public

    Full-stack web application connecting mentors and mentees with interactive module management and responsive UI

    JavaScript

  3. library library Public

    Backend library management system built with Node.js, Express, WebSockets, and PostgreSQL.

    JavaScript

  4. Machine-learning Machine-learning Public

    A machine learning project for detecting spam emails using classification models. Includes data cleaning, training, and model evaluation.

    Jupyter Notebook

  5. Fullstack-Web-Application Fullstack-Web-Application Public

    fullstack react nodejs express mongodb typescript tailwindcss jwt authentication

    TypeScript

  6. film-bibliotek-PHP film-bibliotek-PHP Public

    A movie library built using PHP and MySQL. The project includes functionality to add, edit, and delete movies, and manage categories using relational database JOINs. Security aspects such as prepar…

    PHP