Summary
Overview
Work History
Education
Skills
Websites
Certification
Languages
Timeline
Generic

Matheus De Nigris

São Paulo

Summary

Full-Stack Software Engineer expert in React, Next.js, Angular, TypeScript, C#, Node, SQL and AI integrations. Graduated in Science & Technology at Federal University of ABC and currently studying Software Engineering at FIAP. Advanced skills in mathematics, gold medalist in the Math Kangaroo Olympiad. I'm fluent in English, Portuguese and advanced Spanish.

Overview

2
2
years of professional experience
1
1
Certification

Work History

Full-Stack Software Engineer

IT Works
09.2023 - Current
  • Responsible for developing new features and providing ongoing support for five applications built with React, Next.js, Angular, TypeScript, Redux, Tailwind CSS, C#, Node, and SQL Server. Projects encompassed tax intelligence platforms, commercial sales systems, dashboards, AI integrations, service integrations, customer support portals, landing pages, and payment checkout solutions.
  • End-to-End Tax Intelligence Platform: Designed and developed a full-stack application to calculate and consult product taxes across different Brazilian tax scenarios, including projected tax reform simulations for the next 10 years. The platform featured consultation history, a credit purchasing system, and a responsive UX/UI design. Built with React, TypeScript, Node, and SQL Server.
  • Legacy Product Migration: Successfully migrated and adapted key features from a legacy desktop-exclusive application to the company's main web platform (Angular.js), integrating updated APIs and creating new feature-driven interfaces.
  • Internal Productivity Tool: Developed an internal product for the Tax and Customer Success teams, leveraging React, TypeScript, Redux, and C# APIs. The platform included role-based access levels, interactive dashboards, specialized tax tools, monitoring systems, and tailored query features.
  • Landing Pages & Service Checkout: Built the company's Landing Pages and subscription pages with React, TypeScript, Tailwind CSS, featuring interactive animations, modern transitions (GSAP), and responsive web design.
  • UX/UI Development: Created user-centric designs focusing on mobile-first responsive layouts, implementing modern UI components (Shadcn and 21st), and ensuring high usability standards.

Software Engineer

Self Employed
03.2023 - Current
  • Guest Speaker - Artificial Intelligence Applied to Real World Projects. Invited by Softtek to deliver a talk to the board of directors and development teams about the application of Artificial Intelligence in real-world projects, presenting innovative solutions for the market.
  • Whatsbot.ai - Developed a B2B SaaS platform that automates customer service on WhatsApp through an AI Assistant integrated with OpenAI and Gemini. Built a fully customizable AI Assistant, enabling natural conversations and automated customer support tailored to each business’s needs. Delivered the solution using React, Node.js, Docker and Stripe for secure payment processing. Reduced response times and increased operational efficiency for client companies through customer service automation.

Education

Bachelor's degree - Computer Software Engineering

FIAP
12.2027

Bachelor's degree - Science and Technology

Federal University of ABC
São Paulo
12.2023

Skills

  • React
  • Nextjs
  • TypeScript
  • Angular
  • C#
  • Net
  • Microsoft SQL Server
  • Nodejs
  • AI Integrations
  • Tailwind CSS
  • Reduxjs
  • UX/UI

Websites

Certification

  • Enterprise Challenge Winner - FIAP & Softteck
  • Microsoft SQL Server 2022 - Alura
  • React Expert - Rocketseat
  • Next.js App Router and Tests - Rocketseat
  • Blockchain - FIAP Nano Course
  • Figma for Devs - Rocketseat
  • Redux & Zustand - Rocketseat
  • Gold medalist - Kangaroo Math Olympiad

Languages

English
Bilingual or Proficient (C2)
Portuguese
Bilingual or Proficient (C2)
Spanish
Advanced (C1)

Timeline

Full-Stack Software Engineer

IT Works
09.2023 - Current

Software Engineer

Self Employed
03.2023 - Current

Bachelor's degree - Computer Software Engineering

FIAP

Bachelor's degree - Science and Technology

Federal University of ABC

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Matheus De Nigris