I build reliable backend systems and data-heavy platforms — turning messy operational problems into measurable wins. Currently engineering at one of Brazil's largest pharmacy retailers.
I'm a backend-leaning software engineer who enjoys working at the seam between legacy systems and modern architecture. Most of my day-to-day is .NET, C# and SQL Server — with TypeScript on the front when the situation calls for it.
My favourite problems are the ones that look small from outside but cost a team real hours every week: a stock report that takes two hours to run, a manual process that doesn't scale, a legacy module nobody wants to touch. I like unpicking those and shipping something predictable in their place.
Right now I'm deepening my work in Software Architecture through a postgraduate program at Full Cycle — DDD, microservices, observability and the kind of system design that lets a team move without breaking things.
Rewrote the heaviest routines of a VB.NET inventory system serving the Distribution Center. Report generation that once locked support for hours now finishes in minutes — and the operational friction dropped along with it. Awarded 2nd place in the year's internal recognition round.
Refactor of a service that rebalances stock across stores — moving excess inventory toward units with higher selling potential, improving turnover and reducing dead stock.
A rules-based classifier that decides the optimal return path for damaged or expired products — protecting margin even in critical scenarios.
Promoted to mid-level developer on the Loss Prevention squad. Leading performance work on legacy modules and contributing to the architectural direction of new services across the operational platform.
Software engineer on the Loss Prevention squad — improving operational efficiency for stores and the Distribution Center, reducing costs and sharpening the experience for the end customer.
danielsousa