Thierry Tajes dos Santos

Design and develop AI agents and workflows for engineering and internal automation use cases. Use Claude Code and other AI-assisted development tools for code investigation, debugging, implementation, refactoring, and test generation.

Maintained and troubleshot 7 production microservices using Node.js and TypeScript, investigating reliability, performance, integration, and production issues. Reduced authentication calls from 150,000 daily requests per client to one, and cut processing time for a critical endpoint from 8 hours to 8 minutes.

Increased test coverage for a backend module from 0% to approximately 80% using Jest and Vitest, and standardized testing strategy. Developed and maintained HR integrations using Node.js, MongoDB, Redis, Kafka, NSQ, REST APIs, and SOAP services.

Migrated projects from a proprietary language to Python, reducing dependency on proprietary technology. Set up development environments with Docker and Docker Compose aligned with production, and developed integrations with online payment services and bank slip registration for major Brazilian banks.

Built tools to automate library versioning, FTP uploads, ticket creation, and deployment notifications, saving approximately 30 minutes per merge request. Automated continuous delivery processes and produced technical documentation to support training.

Developed backend solutions for large domestic and international companies in the banking sector, working on mission-critical integrations. Reduced query runtime from approximately 6 hours to 30 seconds, delivering a 720x speedup.

Postgraduate degree in Software Engineering from PUC Minas, completed in 2023.

Technologist degree in Systems Analysis and Development from UNOPAR, completed in 2022.