Software Crafter · Porto, Portugal
A passionate software engineer who loves transforming ideas into reality. Dive in to explore my journey, projects, and the cool stuff I’m working on.
01Portfolio
A weight diary that keeps every weigh-in in your browser: log one a day and see the trend under the daily noise, projections, weekly averages and the stretches where the scale climbs back up. In English and Portuguese, installable and offline.
Paste JSON, get C# classes or records and TypeScript interfaces as you type. It merges every sample to find what’s optional and nullable, sizes numbers exactly, and runs entirely in the browser.
Four original casino table games: the player rolls the dice and the dealer deals the cards. Three are ready to play with virtual chips, their math proven exactly and by simulation.
Converts a salary between hourly, daily, weekly, monthly and yearly pay in BRL, USD, EUR and GBP, with the Central Bank of Brazil’s exchange rates and shareable links.
02Games
A calm, clever puzzle: tap the arrows out, one by one, and clear the board. Endless levels, a daily challenge and a league, now on the App Store and on the web.
A calm water sort puzzle: pour the colors until every tube holds one. Endless levels, a daily puzzle and a league, on the web now and soon on the iPhone.
A calm castle logic puzzle: one castle per row, column and realm, none touching. Endless levels, a daily challenge and a league, on the web now and soon on the iPhone.
A neon arcade space shooter for one thumb: waves of enemies, bosses and power-ups worth the risk. Endless runs and a daily run, on the web now and soon on the iPhone.
A Sudoku with three levels, notes, undo and hints. It saves your game as you play and works offline.
03Articles
TypeScript 7's compiler is a Go port, and it is fast: type checks five to six times faster on two real projects. What stops the upgrade isn't your code, it's every tool that uses the compiler's API, which 7.0 doesn't ship. Measured on json2types and a game monorepo, with the side-by-side setup that keeps typescript-eslint and compiler-API tests working.
A private, offline weight diary in TypeScript that keeps every weigh-in on your device: IndexedDB with a memory fallback, backups that merge without undoing corrections, a smoothed trend under the daily noise, projections with honest error bands, charts without a chart library, and a Content Security Policy that stops scripts from sending data.
How json2types turns pasted JSON into C# classes and TypeScript interfaces: keeping the text of every number, merging every sample instead of reading the first, sizing integers exactly and checking decimals against their range, typing dates only when every value is one, choosing names every compiler accepts, and testing the output against the real .NET and TypeScript compilers.
This year's npm attacks published malicious packages with valid provenance, from the projects' own release workflows. What provenance does and doesn't prove, and the defences that would have helped, tried on npm 12: lockfiles, a release-age cooldown, blocked install scripts, and trusted publishing scoped to a reviewed release. Plus the same ideas for NuGet.
04Journey
2025 – present
Three clients so far: .NET, SQL Server and Azure for PremFina; Aileen, Ardanis’s AI contact-center platform, for SOBI Analytics; and an AI agent that answers questions about Anglo American’s haul trucks and mining equipment.
2024 – 2025
For a veterinary-pharmaceutical client, I automated batch creation and deployment, migrated the legacy app to .NET 8, and developed a proactive monitoring system.
2024
I worked at NewDay through YLD, on a team responsible for payments, utilizing .NET Core, Cosmos, and REST APIs.
2023 – 2024
Transformed software pipelines with GitHub Actions, authored open-source libraries, overhauled server architecture with AWS Lambda, and built monitoring tools using ASP.NET and ECMAScript 6.
2022
Strengthened SQL Server infrastructure, contributed to a global pharma research app, and conducted code reviews.
2020 – 2022
Built a new API for claims ticket management in the insurance industry using SQL, REST, and ASP.NET Core; contributed to a hybrid ticket type in transportation, integrated systems for customer credit and address validations, improved system resilience to 99.99%, implemented a high-speed batch process for 1 million customers, and developed a Grafana dashboard for real-time API monitoring.
2017 – 2019
Performed as a lead developer for the high-traffic product display page, overseeing 10,000+ requests per minute, conducted monthly one-on-one meetings with a team of ten engineers and QA professionals, balanced team backlog with the product owner, and managed feature releases and A/B testing.
05Contact
The best way to reach me is on LinkedIn.