hi matthew here 👋
24-year-old software developer from Brazil
I love building backend application, experimenting with new tech, and grabbing inspiration from the open source community. When I'm not coding, you'll find me hanging out with my girlfriend.
experience
- I
IPlanRio
Fullstack Software Developer
- Automated financial report generation, removing manual SQL extraction and front-end processing steps and improving team productivity.
- Built a secure, role-based administrative interface with React and NestJS for internal financial operations.
- Implemented SQL- and Node.js-based validation and auditing pipelines to keep data aligned with official records and financial statements.
- Led the migration from a legacy database architecture to a modernized data model that improved maintainability and scalability.
- Contributed to a payment retry flow for failed transactions integrated with Caixa Economica Federal services.
- Refactored the database schema and optimized critical financial reporting queries to improve performance at scale.
- Redesigned backend endpoints with SOLID and single-responsibility principles to improve maintainability and reliability.
React.jsNestJSGCPDockerKubernetesPostgreSQL - C
Confidential
Software Engineer
- Led the development of a platform for ingesting, processing, and visualizing inclinometer data, covering the application's full architecture.
- Implemented service integrations and cloud deployment with support for multiple file formats and detailed report generation.
- Ran testing and performance optimization work that improved overall system efficiency.
GoSveltePostgreSQLSSTGit
featured projects
view moreUpdate-Golang CLI
A CLI tool to automate updating Go installations on Linux. Fetches the latest version, removes the old one, and installs the new one seamlessly.
POSCOMP-Lab
A responsive platform to simulate POSCOMP exams. Users can practice with previous exam questions, with or without time limits.
recent posts
view moreFrom Prompting to Process: How AI Is Improving My Workflow Methodology
During a short break from my master's, I started rebuilding my engineering workflow around reusable skills, project memory, PRDs, task plans, and Codex sessions that leave a real trail of decisions.
July 2, 2026
Open Source is Not That Scary
I always wanted to contribute to open-source projects but was scared to take the leap. Here's how I got started by fixing a simple warning in a Go project, and what I learned from the experience.
December 6, 2024