Gustavo Sampaio

At BTG Pactual, I design and evolve mission-critical credit-engine systems that process millions of requests daily and automate limit reevaluations for more than one million account holders.

I modernized a credit-reevaluation pipeline by moving heavy policy computation to AWS Batch, and built an assumed-income caching layer that reduced response times from 12–15 seconds to microseconds. I also improved a high-traffic credit-dossier chatbot through LINQ query refactoring and targeted database indexes.

Previously, at Act Digital, I developed large-scale financial systems for enterprise banking clients, including distributed APIs, credit-policy enforcement, and limit-management services. At Mosten, I delivered an LGPD data lifecycle platform for Mercedes-Benz Bank Brazil ahead of the enforcement deadline.

I work hands-on with C#/.NET, cloud-native distributed systems, observability, and production reliability. I mentor engineers, drive architecture decisions, and use AI coding tools from written specifications while retaining full ownership of design and code review.