Diego Perez Giordán

Backend Engineer at Cencosud (top-3 LATAM retailer), building Go microservices for a multi-country e-commerce platform serving 5+ countries. Open-source contributor to Apache DataFusion, working in Rust on high-performance query engine internals.

📍 Uruguay · 🌎 GMT -3 · 🗣️ Spanish (native) · English (C2)

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What I'm working on

• Day job — Go microservices, REST/gRPC, PostgreSQL. Recently migrated 15 legacy endpoints with up to 60% latency reduction using goroutines and semaphores.
• Open source — Contributing to Apache DataFusion
• Side project — minifusion, a from-scratch mini analytical query engine in Rust, inspired by DataFusion. Learning columnar processing, expression evaluation, and physical execution plans the hard way.

Tech I use

Production: Go · PostgreSQL · gRPC · REST · Docker · Linux

Open source & side projects: Rust · Apache Arrow · async Rust · Dioxus

Comfortable with: Node.js / TypeScript · Python · Java · MySQL

Interests

Distributed systems · Query engines & columnar data · Financial infrastructure · Verifiable computation · Systems-level Rust

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