Backend Software Engineer | Go & Python | Microservices & Real-Time Systems

I am a Backend-focused Software Engineer based in Córdoba, Argentina, with production experience building scalable, distributed systems. I specialize in designing robust architectures, from high-performance microservices to ultra-low latency real-time communication bridges.

I thrive on solving complex technical challenges, optimizing performance, and building reusable infrastructure.

• Languages: Go (Golang), Python, Node.js / TypeScript
• Architecture: Microservices, gRPC, Protocol Buffers, REST APIs, Multi-tenant Systems
• Infrastructure & DBs: Docker, Linux (VPS), PostgreSQL, MySQL, MongoDB
• Real-Time & Networking: WebRTC, WebSockets, Server-Sent Events (SSE)

A reusable, high-performance authentication microservice designed for multi-client SaaS architectures.

• Dual Interface: Exposes both REST (for frontend) and gRPC (for internal service-to-service communication).
• Advanced Auth Flow: Implements a layered security model with Client Tokens, User Access Tokens (JWT), Refresh Token rotation, and OAuth2 (Google/Facebook).
• Stateless & Scalable: Fully containerized and stateless validation, acting as a centralized gateway for distributed backend systems.

Stream physical Bluetooth gamepad inputs from your smartphone to your PC with ultra-low latency, emulating a native Xbox controller.

• Zero-Latency Feel (5-10ms): Leverages WebRTC Data Channels for UDP-like P2P connection, bypassing standard HTTP overhead.
• Bit-Packed Payloads: Controller state is optimized into a minimal binary struct (<dH4b2B) via bitwise XOR operations to maximize network efficiency.
• OS-Level Emulation: Integrates with vgamepad to create a virtual, native Xbox 360 controller on the host machine.

Previously, I spent 2+ years as a Software Engineer at a tech startup, where I developed the backend for a production IoT access-control platform. My day-to-day involved writing microservices in Go with gRPC, building JWT/Role-based authorization systems, handling real-time updates via SSE, and managing Dockerized deployments.

I am currently open to new remote opportunities worldwide. Let's build something great together.

• LinkedIn: linkedin.com/in/franco-alfano
• Email: franco.alfano1404@gmail.com