Transactional systems
APIs and services where being right matters more than being fast: transfers, payments, audit trails, and the edge cases nobody thinks about until they bite.
SOFTWARE ENGINEER · WEB AND BACKEND · SÃO PAULO, BR
I build web systems that keep your data straight.
I'm a backend engineer in São Paulo, currently at Itaú. I build transactional apps, internal tools, and APIs for teams that can't afford to lose a single record — and I take on a few consulting and contract projects alongside my day job.
$ pedro --status
> available for new engagements
POST /transfers/created 201 transfer-web-api
GET /condohub/announcements 200 condohub
POST /invoices/categorize 200 finance-dashboard
GET /health 200 uptime 4yr+
What I build
/servicesWeb applications
End-to-end web apps for real users — internal tools, admin panels, community platforms — built to stay maintainable long after launch.
Dashboards and data tools
Turn spreadsheets and raw exports into focused tools a team can use every day: upload, categorize, visualize, repeat.
Technical consulting
Architecture reviews, code audits, and a second pair of experienced eyes for teams that are mid-project or getting unstuck.
Featured work
/projects · 4 selectedA few things I've shipped — from a production-grade financial API to side projects that solve a real problem.
transfer-web-api
production-gradeHigh-concurrency financial transfers API with pessimistic locking to prevent lost updates and an audit trail designed for accountable systems.
condohub
shipped end to endCommunity web app for condominium residents to share updates, discuss local topics, and recommend services in one place.
finance-dashboard
useful by defaultInteractive finance dashboard that turns bank statement uploads into categorized transactions and readable spending patterns.
bookmarks-visualizer
side projectFast static tool for organizing and searching browser-exported bookmarks, built around a small problem with a very practical answer.
How I work
/processDiscovery
A short call to understand the problem, the constraints, and what done actually looks like.
Build
Regular check-ins and working software early. No disappearing for months into a black box.
Ship and support
Deploy, hand off clear documentation, and stay reachable after launch, not gone the day it ships.
About
/aboutI am a software engineer at Itaú focused on web and backend development, based in São Paulo. Outside of client work I am usually deep in a personal project, training for my next 5K or 10K, or a few episodes into a podcast about psychology or philosophy. I like systems that hold up under pressure, in code and otherwise.