With over 6 years of experience, I specialize in engineering scalable, reliable, and secure backend systems. I have a deep background in API design, real-time tracking, and high-performance networking.

• Languages: Go (Expert), Python, Java.
• Systems & Networking: UDP/TCP, Binary Protocols, WebSockets, gRPC.
• Infrastructure: Docker, PostgreSQL, InfluxDB, GCP, Redis.
• Security: Security policy enforcement, AuthN/AuthZ systems.

I am currently building PulseCheck, a low-latency distributed health monitor that demonstrates senior-level Go mechanics:

• Binary Protocol: Custom 30-byte packets with CRC32 checksums for ultra-low bandwidth.
• High Concurrency: Implemented a Worker Pool and Sharded Maps to minimize mutex contention and GC pressure.
• Observability: Integrated system telemetry (CPU/RAM/Disk) into a decentralized heartbeat signal.

• Stream: Engineered critical solutions including the Shared Locations feature for live tracking and optimized administrative operations via the Channel Batch Update API.
• Globant (Disney): Focused on engineering scalable and reliable backend systems with a strong emphasis on reliability and security.

• Master's in Bioengineering - Universidade Estadual de Campinas.
• MBA in Project Management - Unichristus.
• Bachelor's in Electronics - Universidade de Fortaleza.

📫 Reach me at: rafaelfmarinho3@gmail.com | LinkedIn