Alberto Pastor Moreno
Engineering
Scalable Systems.
I architect high-performance distributed systems and cloud-native platforms. From concept to scale, I engineer the foundations of modern infrastructure.
1:1 Coaching
Prepping for an interview?
No matter what stage you're at — sharpening your CV, practicing a system design round, or just deciding what's next — I'll work through it with you directly, one on one, grounded in what I've actually shipped in production.
Built on experience from
Writings
What Actually Happens When You Click a Link on a Website
Why Stripe Never Charges You Twice (Idempotency Keys)
Feature Flags: How to Deploy Safely to Production at Big Tech Scale
Zero-Downtime Migration of Amazon Business Checkout to Microservices Using the Strangler Fig Pattern
Zenoh vs Kafka: Choosing the Right Messaging Backbone for Your System
Open Source Work
Samsa
A lightweight, Kafka-compatible message broker and CLI written in Go. It implements the core Kafka binary protocol, providing a high-performance distribution system for event-driven architectures.
PyRedis
A high-performance async Redis client built from scratch in Python. Implements the RESP protocol with support for pipelining, transactions, and replication.
Naku
A Python CLI tool that automates GCP infrastructure for real-time ML inference, wiring together Pub/Sub, Cloud Storage, and Apache Beam on Dataproc with a single command.