P1Grid
Race-weekend predictions, powered by clear business rules.
SOFTWARE ENGINEER · BACKEND
Thoughtful code.
Real-world
impact.
I’m Guilherme, a software engineer focused on turning business requirements into reliable backend systems. My work spans API design, business logic, data modeling, and deployment, primarily with Java and Spring Boot, alongside Kotlin and .NET.
{ }Backend at heart.
Product-minded by nature.
Product-minded by nature.
CODE, IN MOTIONEXPERIMENT / 001
A little logic. A lot of possibility.Move your pointer to explore
THE TOOLKIT
Java ↗Spring BootKotlinASP.NET CorePostgreSQLReact
01 / SELECTED WORK
From idea to implementation.
Real products. Practical problems.
A look at what I’ve been building.
Case study ↗
CarbonHunter
Turning emissions data into structured, actionable insights.
AguiaX
A connected path from promising ideas to managed projects.
Crypto DCA Simulator
Making investment strategies easier to explore and compare.
02 / THE PERSON BEHIND THE CODE
Curious mind.
Engineering
mindset.
SÃO PAULO, BRAZIL · UTC−3
I like understanding how things work.
Then figuring out how to make them better.
My focus is backend and software engineering: turning requirements into reliable APIs, meaningful data models, and maintainable applications. I also enjoy connecting those systems to thoughtful web and mobile interfaces.
From delivering features with a freelance team to building academic projects at FIAP, I’m developing software with an eye on the whole product.
01 Backend & architecture +
Java, Kotlin, Spring Boot, C#, ASP.NET Core, Ruby on Rails. Business rules, REST APIs, authentication, and layered application design.
02 Data & delivery +
PostgreSQL, MySQL, MongoDB, Docker, automated testing, and CI/CD. Working from the data model through to deployment.
03 Interfaces & interaction +
React, Next.js, TypeScript, Tailwind, and Android with Kotlin and Jetpack Compose. Connecting people to the systems behind the screen.
ON MY DESK
Vibes — a mood-based discovery app, built with Kotlin and Spring Boot.
In progressEXPERIENCE & EDUCATION
Full Stack Developer
I.Tech · Freelance · P1Grid
Contributed backend business rules and responsive interfaces to a Formula 1 prediction platform in production, working with a development team.
Software Engineering Trainee
Kreativstorm · Remote
Planned the MoneyQuest application and analyzed APIs, software architecture, privacy, and security.
Software engineering foundations
FIAP · USP/Esalq · Le Wagon
Systems Analysis and Development at FIAP, expected November 2026. MBA in Software Engineering at USP/Esalq, October 2026–July 2028. Le Wagon Web Development, completed June 2024.
03 / NEXT CONVERSATION
A role, a project, or a good technical conversation.
I’d be happy to hear from you.