Mid-Level Full-Stack Software Engineer

I am the primary developer for a hospital management platform, owning feature delivery from technical design through production support. I build asynchronous processing pipelines using BullMQ, Redis, and background workers for high-volume healthcare data jobs.

I implemented SOAP integrations with Brazilian healthcare interoperability standards TISS and TUSS, covering claims billing and denial handling with insurers. I also work with the tech lead to optimize slow database queries and endpoints, review pull requests, manage Kanban flow, and introduced Playwright end-to-end coverage to reduce regressions in critical clinical workflows.

I developed and maintained frontend interfaces, backend services, and game-server scripts on a proprietary closed-source enterprise framework. I contributed to technical analysis, feature design, and pull-request reviews across the team.

I diagnosed undocumented production crashes through reverse engineering and memory analysis with IDA Pro and WinDbg. I restored stability without vendor source-code access and delivered emergency hotfixes during live incidents affecting active users.

I owned development of bood PDV, a point-of-sale product for order and financial management used by commercial clients. I built responsive web and mobile interfaces with React, Next.js, and React Native.

I designed and deployed serverless microservices on AWS using Lambda, S3, DynamoDB, Cognito, Amplify, and CloudWatch. I also built production services in Java with Spring Boot and Node.js, created scheduled Python web-scraping routines, mentored intern developers, and supported code review activities.

I applied reverse engineering in C++ and x86 Assembly to a closed-source MMORPG client and server, delivering new content without access to the original source code. I implemented a playable character class and an in-game item by analyzing and patching binaries and extending native structures.

I maintained web interfaces serving roughly 100 concurrent daily players, debugged low-level issues, and optimized server performance through binary and memory analysis. I also managed Discord community infrastructure for about 1,000 members and reviewed English and French localization.

I taught programming logic and computational thinking to secondary-school students. I translated abstract technical concepts into practical, hands-on exercises.

Relevant coursework included Software Architecture, Operating Systems, Object-Oriented Programming, Web Programming, Systems Analysis and Modeling, Cloud Computing, Relational and NoSQL Databases, and Mobile Development.