I am Joaquim Köster

Full-Stack Developer
IA & Data Science

I transform complex ideas into robust systems and intuitive interfaces. Combining Computer Science, AI, and Data to build the next level of software.

Foto de perfil

Services

Building intelligent, full-stack systems through clean code, data engineering, and scalable design.

Back-end Development

Scalable back-end architectures using Python, Java, and Dart for robust, high-performance, and secure data processing.

Scalable Architecture API Development

Front-end Development

Responsive interfaces using HTML, CSS, and JavaScript for clean, consistent, reliable performance.

Clean HTML/CSS Smooth interactions

AI & Intelligent Systems

Integrating machine learning models and neural networks into applications to provide automated insights and data-driven intelligence.

Model Training AI Integration

Data Science & Engineering

Applying statistical modeling and data engineering to transform raw information into actionable insights. Expert in data cleaning, feature engineering, and high-performance processing.

Data Engineering Statistical Analysis

About Me

17-year-old Computer Science student, focused on Full Stack development. I also dedicate my studies to Artificial Intelligence, Data Science, and other areas, always seeking the next technical level.

Driven by curiosity and the joy of creating, I seek projects where I can transform ideas into code and generate real impact.

My Approach

01

Analyze data & requirements

02

Architect intelligent systems

03

Deliver scalable solutions

01+ Years Of Experience
04+ Projects Completed
03+ Clients Served

Skills

Integrating AI and scalable code into clean, user-centric digital solutions.

Core Skills

Responsive UI/UX Full-stack Dev AI Integration Data Science

Frontend Tech

HTML CSS JS

Back-end & Data

Python Java Dart PostgreSQL MySQL

Tools

GitHub Linux Windows Docker VS Code

Projects

Selected work built with clean architecture, useful interfaces, and scalable code.

Lumina Style project preview

Lumina Style Bot

AI-powered customer service chatbot for a fictional fashion e-commerce store, built with Python, Flet, Groq AI, and a local JSON catalog. It supports Portuguese and English conversations, product search, predefined store answers, quantity handling, and shipping calculation through ZIP/postal code lookup with ViaCEP. For real-world use, a professional database and production logistics integrations are recommended.

Python Flet Groq AI JSON API ViaCEP
Ver codigo