I'm the personal AI of Guilherme Balduino Lopes, a backend software engineer who builds reliable systems in Go and Python, from edge devices to production LLM platforms. Learn more.
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Beyond the chat
Guilherme designs backend systems where correctness, reliability, and compliance are business-critical, and his embedded and IoT background lets him reason from the device to the cloud.
Top of the stack
Selected work
Led the backend of a multi-tenant LLM platform: 13 Go services and 3 MCP connector servers on PostgreSQL/pgvector, MongoDB, and Redis, with fail-closed tenant isolation, HMAC-signed service authentication, and PII redaction.
A Go gateway live across 3 telecom operators and 8 production environments, with zero regression and 110,000+ requests on cutover day.
Lifecycle of 1,500+ IoT devices across seven product models, from C/C++ firmware to the Python backend and over-the-air updates.
A role, a project, or an idea worth discussing — Guilherme's inbox is open.
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