Mateus
From Brazil
Mateus – React, AWS, Node.js
Mateus is a Full-Stack Developer with 6 years of experience, specializing in Node, React, and Next.js, with a strong focus on performance and scalability. He has experience with AWS EC2, CI/CD, API versioning, and designing systems that reliably handle events and databases. He is passionate about continuous learning and turning complex technical challenges into real business value. Mateus thrives in fast-paced, AI-driven environments where quick, thoughtful decisions can make a meaningful impact. In projects, he combines technical expertise, strategic thinking, and a collaborative, team-oriented approach.
5 years of commercial experience in
Main technologies
Additional skills
Direct hire
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Let’s get started today!Experience Highlights
Senior Front-end Developer
An intelligent tool that interprets dashboards or screenshots, explains KPIs in plain language, and provides insights, risks, and actionable recommendations to help non-technical users understand and act on their data.
- Built the entire front-end flow for uploading dashboard screenshots/URLs and visualizing the AI-generated analysis;
- Designed the UI/UX for the analyzer module using Next.js + Tailwind, focusing on clarity, readability, and information hierarchy;
- Implemented the data visualization layer for extracted KPIs, trends, anomalies, and recommendations;
- Created reusable components for metric cards, AI explanations, loading states, and error handling;
- Integrated seamlessly with the backend AI pipeline via tRPC, ensuring type-safe requests and responses;
- Improved usability by adding progress indicators, step-by-step feedback, and clean result layouts;
- Optimized client-side performance, reducing render cost on pages with heavy data;
- Collaborated closely with backend engineers to define payload structures and refine the AI output UI;
- Conducted user testing with internal teams to refine UX and improve interpretation clarity.
Senior Full-Stack Developer
A project management platform designed to accelerate developer growth, featuring collaborative project work, progress tracking, mentor assignment, and a credits-based reward system.




- Designed and implemented the complete project architecture;
- Developed the user experience from the ground up;
- Selected and configured the project infrastructure;
- Built and managed the end-to-end marketing system integration.
Senior Full-Stack Developer
An internal analytics platform that centralizes data to give executives real-time insights, helping management track revenue, efficiency, SLAs, and team performance with customizable dashboards and automated reporting.
- Implemented reusable UI components and data-visualization widgets for charts, KPIs, and trend analysis;
- Created a highly optimized GraphQL data layer with caching and partial pagination for real-time metrics;
- Ensured performance and UX quality, reducing dashboard load time to under 1.2s;
- Provided guidance to junior developers and drove best practices across the codebase.
Senior Full-Stack Developer
The platform streamlines the discovery phase by quickly assessing a company’s operational maturity through a smart questionnaire, generating risk levels, recommendations, and a structured roadmap to reduce consulting hours.
- Designed and implemented the full architecture using Next.js, tRPC, and FastAPI microservices;
- Built the dynamic diagnostic form builder with conditional questions and scoring logic;
- Implemented automated scoring, maturity level calculations, and recommendation engine;
- Created PDF report generation with personalized branding and detailed company insights;
- Developed the admin dashboard for consultants to manage questions, categories, and evaluation models;
- Built reusable UI components with Tailwind + shadcn and improved usability across the platform;
- Deployed and optimized the system on Vercel, ensuring fast load times and stable performance;
- Collaborated directly with consultants to translate their business methodology into a digital product.