Daniel
Mazzeu

HTML5

Structuring content in a semantic and accessible way, ensuring a solid foundation for any web project.

CSS3

Transforming layouts into responsive and visually appealing designs, mastering flexbox, grid, and pre-processors.

JavaScript (ES6+)

Implementing complex logic and interactivity for front-end and back-end, creating dynamic and high-performance experiences.

TypeScript

Utilized to add static typing, increasing code safety and maintainability in large-scale projects.

Node.js

Developing robust back-end and efficient RESTful/GraphQL APIs using the complete JavaScript ecosystem.

Next.js

Expert in Server-Side Rendering (SSR) and Static Generation (SSG) for performance, SEO, and full-stack development.

React / React Native

Building modern user interfaces based on reusable components for Web and cross-platform native mobile applications.

Flutter

Learning to create high-performance native apps for iOS, Android, and Web from a single code base (cross-platform).

Angular

Experience in the architecture and development of complex and scalable Single Page Applications (SPAs).

PHP

Experience in the development and maintenance of robust systems and enterprise solutions based on PHP.

SQL Family

Specialist in data modeling and query optimization (T-SQL/PL/SQL), ensuring scalability and high performance in relational databases.

Python

Versatile and readable language, ideal for Machine Learning, Data Science, Web development, and system automation.

C#

Learning to develop robust REST APIs, microservices, and scalable business applications using the .NET Core/.NET ecosystem.

Git & GitHub

Proficiency in distributed version control, workflows (Git Flow, GitHub Flow), branching, merging, and team collaboration.

Domains & DNS

Configuring and managing DNS records (A, CNAME, MX, TXT), ensuring correct routing for websites and services.

SMTP (Email)

Configuring email servers and delivery infrastructures (SMTP), optimizing deliverability and authentication (SPF, DKIM, DMARC).

SEO

Applying advanced on-page and off-page optimization strategies (Core Web Vitals, Schema Markup) for high organic visibility.

Firebase

Learning to use the platform (Authentication, Firestore, Functions) for rapid development of MVPs and lightweight full-stack apps.

Vercel

Experience in continuous deployments (CI/CD), Edge Functions, and performance optimization for Next.js and static front-end apps.

Railway

Proficiency in deployment, scalability, and infrastructure management for back-end applications and databases.

Degree in Data Science (FIAP)

Currently studying Data Science at FIAP – Faculty of Technology. The curriculum covers advanced subjects such as Machine Learning, Big Data Analytics, and Cloud Computing Architecture. The goal is to develop competencies in robust statistical modeling and the strategic application of data visualization to generate business insights.

Portuguese

Native language. Full proficiency in speaking, writing, reading, and comprehension.

English

Advanced knowledge. Fluent communication capability in professional contexts, document writing, and complex text comprehension.

Spanish

Basic/Initial knowledge. Ability to hold simple conversations and understand everyday phrases and expressions.

Worked on the development of a complete technological ecosystem for franchise network management. The project consisted of creating a robust ERP system for the back-office, integrated in real-time with a high-performance cross-platform mobile app developed in Flutter. This solution managed the entire sales cycle and maintained precise inventory synchronization across multiple units.

At LLI9 (outsourced by Lupo), I participated in building and maintaining several strategic internal systems. My contribution included developing inventory control modules for precise management and implementing a ticket management platform to improve technical support and request tracking.

I founded this company to formalize and expand my services as a freelance developer and consultant. The primary focus of L009 was providing Robotic Process Automation (RPA) solutions and custom system development, aiming to increase operational efficiency and digitize workflows for small and medium-sized clients.

Cintia

CINTIA is an AI agent developed based on the GPT API. Its main function is text review and correction, ensuring full compliance with Portuguese grammar standards.

To-do

A task manager developed to facilitate personal organization. The project uses LocalStorage for data persistence, ensuring tasks are saved locally in the browser.

Pokemon Data API

Explore the Pokémon universe through this application. The project demonstrates the consumption of REST APIs and structured display of attributes, types, and statistics.