Alex Zajac

Alex Zajac

Software Engineer II @Amazon Prev. Machine Learning @ Ecole Polytechnique System Design, WebDev and AI enthusiast

Weekly DigestWeekly Digest
🍔🧠 Booking Just Made Java Sexy Again: 77% Smaller Payloads With 1 Migration

🍔🧠 Booking Just Made Java Sexy Again: 77% Smaller Payloads With 1 Migration

PLUS: System Design Interview Database Tips 📚, Apple vs Ring 👀, SQLite's Speed Boost with Bloom Filters ⚡

Alex Zajac
Alex Zajac
Weekly DigestWeekly Digest
🍔🧠 RIP Microservices; Shopify's 30TB/min Approach

🍔🧠 RIP Microservices; Shopify's 30TB/min Approach

PLUS: Leetcode Simplified 👀, Thread Management 101 📚, Debugging Techniques for Developers ⚡

Alex Zajac
Alex Zajac
Weekly DigestWeekly Digest
🍔🧠 How Airbnb Handles a Million User Events/Second

🍔🧠 How Airbnb Handles a Million User Events/Second

PLUS: Amazon's New AI Lab 🤖, Redis Scaling Lessons 📚, From New Grad to Meta Staff 🦸‍♂️

Alex Zajac
Alex Zajac
Weekly DigestWeekly Digest
🍔🧠 1 Server for 1M Connections: Nginx Architecture

🍔🧠 1 Server for 1M Connections: Nginx Architecture

PLUS: Build a Distributed Log ⚡, Data Fetching Patterns 📚, Developer's Guide to API Gateways 🔍

Alex Zajac
Alex Zajac
Weekly DigestWeekly Digest
🍔🧠 How LinkedIn Scaled to 5 Million Queries Per Second

🍔🧠 How LinkedIn Scaled to 5 Million Queries Per Second

PLUS: Netflix's Self-Healing System 🫢, PostgreSQL Learnings 📚, Essential Trends Beyond LLMs 🚀

Alex Zajac
Alex Zajac
Weekly DigestWeekly Digest
🍔🧠 Bloom Filters Explained in 1 Email

🍔🧠 Bloom Filters Explained in 1 Email

PLUS: Apple's 'LLM Siri' 🫢, Knowledge Management 📚, React Anti-Patterns to Avoid ❌

Alex Zajac
Alex Zajac
Weekly DigestWeekly Digest
🍔🧠 Behind Reddit's 100K Reads/Sec Database Design

🍔🧠 Behind Reddit's 100K Reads/Sec Database Design

PLUS: LinkedIn Architecture 📚, Containerization Explained 💡, 5 Software Trends to Watch 🔍

Alex Zajac
Alex Zajac
Weekly DigestWeekly Digest
🍔🧠 How Robinhood Wins at Trading (Graph Algorithms 101)

🍔🧠 How Robinhood Wins at Trading (Graph Algorithms 101)

PLUS: Building WhatsApp 📚, Scaling Google Ads 💡, Engineering Top 1% Lessons 🚀

Alex Zajac
Alex Zajac
Weekly DigestWeekly Digest
🍔🧠 How Stripe Tracks Time over 1 Trillion Payment Volume

🍔🧠 How Stripe Tracks Time over 1 Trillion Payment Volume

PLUS: Netflix Web Performance 📚, Refactoring 101 🧑‍🎓, Proxy vs Reverse Proxy 🔥

Alex Zajac
Alex Zajac
Weekly DigestWeekly Digest
🍔🧠 RIP JSON: Clickhouse's New Data Type for Storage

🍔🧠 RIP JSON: Clickhouse's New Data Type for Storage

PLUS: Top 5 Caching Strategies 📚, How to Use Git 🧑‍🎓, Discord's 40% Latency Reduction 🔥

Alex Zajac
Alex Zajac