01About
Full stack by day,
root user by night.
I'm Mateus Felipe, full-stack developer and Linux-powered human.
I build across the stack with React, Next.js, Node.js and Nest.js, and dive into DevOps when the code needs to meet the cloud.
At an ISP with 60,000+ subscribers, I created and maintain BrTools, the internal operations platform used by ~200 people, and BrTools AI, the agent that lets teams run it from a chat. Beyond that, I also develop freelance projects, crafting solutions that mix frontend, backend and infrastructure with the same energy and care.
My toolbox lives in the TypeScript stack, but I'm also exploring the sharp edges of Rust and the solid grounds of Java.
I've been riding Linux for ~10 years, chasing knowledge in security, system hardening, and the occasional rabbit hole into obscure commands.
When I learn something new, I share it, through blog posts, configs, and experiments that sometimes spiral into the rabbit hole.
02Experience
How I got here.
From fixing computers and teaching classes to running a platform a whole company depends on.
BrSuper Internet
Internet service provider with over 60,000 subscribers.
Full-Stack Developer
12/2024 - Present
- Created BrTools AI, an agent built into the platform and used across the whole company to open work orders, handle tickets and diagnose customer connections from a chat.
- Built and maintain BrTools, the internal platform used by ~200 people in Support, NOC, Operations, Sales and Field.
- Automated provisioning on network equipment, taking procedures from 1 h to 5 min.
- Led the production switch from MariaDB to PostgreSQL with no downtime.
Technical Support
06/2024 - 12/2024
- Supported customers with fiber and radio connections, and set up log and network monitoring with Graylog and Zabbix.
Freelance
IT and software development services.
Full-Stack Developer
06/2024 - Present
- Build full-stack applications for clients with another developer, using React, Next.js, NestJS and Django.
IT Technician
01/2018 - 01/2024
- Did hardware and software maintenance on computers and networks, on site and over TeamViewer.
Instituto Mix de Profissões
Network of vocational course and undergraduate schools.
Computer Teacher
06/2023 - 08/2024
- Taught basic computing, Microsoft Office and hands-on computer assembly and repair, and wrote Python scripts and small web apps to automate the school's internal tasks.
Computer Lab Assistant
05/2023 - 08/2023
FAPAM
Degree in Information Technology Management
2024 - 2026
03Toolbox
What I work with.
What I reach for most days. The list changes, the curiosity doesn't.
01Languages
- TypeScript
- Rust
- Python
- SQL
02Front end
- React
- Next.js
- TanStack
- Tailwind CSS
03Back end
- Node.js
- NestJS
- PostgreSQL
- Redis
- BullMQ
04Ops
- Linux
- Docker
- OpenTelemetry
- Grafana
- System hardening
05Elsewhere
Say hello.
Find me around the internet, or send an email. For freelance projects and consulting, WhatsApp is the fastest way to reach me.