João Vitor Fernandes de Sales
João Vitor Fernandes de Sales

Software Engineer | Full-Stack (Node.js, React, TypeScript) | AI & Data Integrations

Actively looking · Member since 1 Jun 2026
Message
Location
Brazil
Desired salary
from 15 USD/hourly
Work preference
Full Time
Experience level
Not set

About

Professional summary

I am a Software Engineer with experience in full-stack web development and AI-driven integrations, working on real-world projects across public, academic, and financial sectors. I am skilled in building applications using Node.js, React, and TypeScript, with hands-on experience in automation, chatbots, and ETL tools. I have worked extensively in agile environments, particularly Scrum, focusing on delivering scalable and practical solutions.

Throughout my career, I have developed custom solutions for banking systems, municipal applications, and healthcare chatbots, contributing to both frontend and backend development. I am proficient in creating responsive interfaces, secure APIs, and automating data migration processes using various technologies including Python and Ruby on Rails.

I have also volunteered as a mobile app developer and algorithms instructor, which helped me enhance my communication and teaching skills. My experience includes cloud computing and serverless solutions on AWS, where I hold a Cloud Practitioner certification.

I am passionate about integrating AI features into applications to improve user experience and system intelligence. I continuously seek to expand my knowledge in software engineering, artificial intelligence, and cloud computing through hands-on projects, internships, and applied research.

I am eager to contribute my skills and experience to innovative projects that challenge me and allow me to grow professionally in the software development and AI integration fields.

Skills

20 capabilities

Experience

Career history

Full-Stack Developer (Junior) Dunnas Tecnologia e Consultoria

Developed custom solutions for banking systems serving multiple clients. Implemented features using Java, JavaFX, and SQL Server. Worked in an agile environment (Scrum), participating in planning and delivery cycles. Contributed to maintenance and evolution of critical systems.

Full-Stack Developer (Intern) Prefeitura de Mossoró

Built web applications using React.js (frontend) and Ruby on Rails (backend). Developed responsive interfaces and secure APIs for municipal systems. Created an ETL tool using Python (Django) to automate data migration processes. Worked with structured data (JSON, SQL) and database integrations.

Intelligent Chatbot Developer (Research Project) UFERSA

Developed a healthcare chatbot using Node.js, React.js, and n8n. Implemented automation and integrations to enhance system intelligence. Performed bug fixing and maintenance on web applications.

Mobile App Developer (Volunteer) UFERSA

Built an English learning mobile app using Flutter and Firebase. Integrated AI features for personalized learning experiences. Gained experience in mobile development and API integration.

AWS Intern (Machine Learning) Compass UOL

Worked with cloud computing and serverless solutions on AWS. Developed APIs and integrated cognitive services. AWS Cloud Practitioner certified.

Algorithms Instructor (Volunteer) UFERSA

Taught programming logic and Python fundamentals. Developed communication and teaching skills.

Education

Learning history

Universidade Federal Rural do Semi-Árido

Bachelor of Computer Science

Focus on software engineering, artificial intelligence, and cloud computing. Participation in hands-on projects, internships, and applied research.

HackaTruck

Cloud, AI and Swift Program

Developed iOS applications and integrated cognitive services.

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