Pedro Queiroz
Qyrex
A workspace for developers and freelancers: projects, tasks, terminal, visual Git and an AI chat that only runs commands with your permission.
Open to internships and junior roles
Web and desktop software,
Pedro Queiroz · Software Developer
Web and desktop software,
from first commit
to installer.
I'm a Computer Science student at Senac and a freelance developer. I've shipped three open source desktop apps with installers and I build web systems for clients, with React, TypeScript, C# and C++.
01 · Projects
Featured projects
Applications I built from scratch, open source or as products. Each one has a case study with the problem, the technical decisions and what I learned.
Qlip
Screen recorder and instant replay in native C++. It captures on the GPU, keeps the last seconds in memory and saves the clip with F8.
Qrztweaks
Windows optimization and maintenance where every tweak is reviewed item by item, backed up and reversible, plus a lab that measures real performance before and after.
Atelier 31
Barbershop website with online booking: service, barber, day and time, stored in Supabase with access rules and double-booking prevention enforced by the database.
All projects
Other work, from desktop tools to demo websites (most of the websites are in Portuguese).
I write software that leaves my editor and ends up installed on someone else's machine. And I explain every decision along the way.
02 · Experience
Experience and activities
Grouped by type: freelance work for clients, published personal projects and academic projects.
FreelanceClient work
Freelance developer
Self-employed · Remote
- Aquecedores Fortes (09/2026): internal quoting system with a heater catalog by brand, services, quote status, PDF printouts and role-based access.
- Building and maintaining websites with HTML, CSS and JavaScript.
- Automations that remove manual work, from requirements to delivery.
Video editor and graphic designer
Freelance
- Video editing and post-production with Adobe Premiere Pro and After Effects.
- Animations, transitions, visual effects and promotional content.
- Image retouching, manipulation and editing with Adobe Photoshop.
- Graphic materials, posts and social media content.
Personal projectsOpen source, published
Open source desktop apps
Qyrex · Qlip · PQueiroz Video Studio
- Apps with Windows installers, MIT license and versions published on GitHub Releases.
- Qyrex: auto-update with SHA-512 verification, IPC validated with zod and tests with Vitest.
- Qlip: GPU capture and encoding in C++, with memory use and dropped frames measured and documented.
AcademicSenac
Integrative Project · “Onde Fica?”
B.Sc. in Computer Science · Senac
- Proof of concept of an educational game in C with Allegro 5: the player clicks the Brazilian state where a monument is located.
- Schematic map with the 26 states and the Federal District, with click detection computed from each block's position.
03 · Skills
Technologies and where I used them
No percentage bars: each technology points to the projects where it was used. in projects means hands-on use; basic means early knowledge.
Front-end
TypeScript in projectsQyrex, Atelier 31, Aquecedores Fortes, Zekro
React in projectsQyrex, Atelier 31, Video Studio
Next.js in projectsAquecedores Fortes, Zekro, InstallAll
HTML, CSS and JavaScript in projectsBravus, Lúmina, PQueiroz Hub and this portfolio
Tailwind CSS in projectsQyrex, Aquecedores Fortes
Back-end and data
Node.js in projectsQyrex (main process), InstallAll (Express), Capivarudo
SQL and PostgreSQL in projectsAtelier 31 (RLS and functions), Aquecedores Fortes
Supabase in projectsAtelier 31, Zekro
Prisma and SQLite in projectsAquecedores Fortes, Capivarudo · SQLite in Qyrex
PythonPersonal scripts and automations
Desktop and systems
Tools
Git and GitHub in projectsEvery project; releases and installers on GitHub
Vitest in projectsQyrex, InstallAll
Docker in projectsInstallAll (multi-stage and Compose)
FFmpeg and CMake in projectsQlip, Video Studio
Claude Code and Codex in projectsAI-assisted development and code review, with the generated code tested and reviewed
AI APIs in projectsClaude, OpenAI and Gemini in Qyrex; Claude in Video Studio
VS Code, Visual Studio and VercelDaily work environment and website deployment
Video and design
Adobe Premiere ProVideo editing, assembly and post-production
Adobe After EffectsMotion graphics, animations, transitions and visual effects
Adobe PhotoshopImage retouching and manipulation, graphic materials and social media content
04 · About me
Pedro Queiroz
I'm a Computer Science student at Senac, with a previous technical degree in Business Administration.
I'm interested in software engineering, application development and solving problems with technology. I build personal and practical projects involving web interfaces, databases, desktop applications and automation.
In my daily work I use AI tools such as Claude Code and Codex to speed up development and review code, always testing and reviewing what they produce.
I also work on video editing, audiovisual post-production and graphic design, using Premiere Pro, After Effects and Photoshop to create digital content.
I'm looking to grow professionally in IT by joining challenging projects, learning from other developers and contributing to useful, well-structured solutions.
- Education
- Computer Science · Senac
- Location
- São Paulo, Brazil
- Languages
- Portuguese · Intermediate English
- Looking for
- Internship or junior role
Timeline
-
Technical High School in Business Administration
Senac Jabaquara · São Paulo
-
Started as a freelance developer
Websites and automations for clients.
-
B.Sc. in Computer Science
Senac Nações Unidas · São Paulo · in progress
-
Qyrex, Qlip and Video Studio released
First open source desktop apps with installers and releases.
-
Quoting system · Aquecedores Fortes
Freelance project with Next.js, Prisma and PostgreSQL.
05 · Services
Freelance development
I also work with businesses and professionals. Before starting, we agree on scope, timeline and budget.
Business websites
Fast, responsive websites that present the company, its services and how to get in touch.
e.g. Lúmina Estética
Landing pages
Pages focused on one offer, with a clear call to action and direct contact through WhatsApp.
e.g. Bravus Barbearia
Custom web systems
Records, quotes and bookings with login, a database and your business rules.
e.g. Atelier 31, quoting system (freelance)
Interfaces and dashboards
Internal panels to keep track of orders, customers and services in an organized way.
e.g. Qrztweaks dashboard
Automation and tools
Bots, scripts and small tools that eliminate repetitive manual tasks.
e.g. Capivarudo bot
Have a project in mind? Tell me what you need and I'll reply with a proposal.
Request a quote
06 · Contact
Let's talk
I'm open to internship and junior software development roles, as well as freelance projects. Email is the best channel for recruiters.