What's New?

February 2026

Stock Exchange (NASDAQ, NYSE) — Deep Dive 4: Concurrency & Lock-Free Architecture
New
Stock Exchange · Whiteboard9 Feb 2026
Eoin
Stock Exchange (NASDAQ, NYSE) — API Design
New
Stock Exchange · Whiteboard6 Feb 2026
Eoin
Short-Form Video Platform (TikTok, YouTube Shorts) — Deep Dive 1: Video Processing Pipeline
New
Short Form Video Platform · Whiteboard5 Feb 2026
Eoin
Short-Form Video Platform (TikTok, YouTube Shorts) — API Design
New
Short Form Video Platform · Whiteboard4 Feb 2026
Eoin
Payment Gateway (Stripe) — Deep Dive 4: Automated Reconciliation
New
Payment Gateway · Whiteboard4 Feb 2026
Eoin
Payment Gateway (Stripe) — API Design
New
Payment Gateway · Whiteboard3 Feb 2026
Eoin
Google Maps — High-Level Design
New
Google Maps · Whiteboard2 Feb 2026
Eoin
Metrics Monitoring and Alerting (Datadog, Prometheus) — API Design
New
Metrics Monitoring & Alerting · Whiteboard2 Feb 2026
Eoin

January 2026

Distributed Task Scheduler — Deep Dive 1: High-Precision Scheduling
New
Distributed Task Scheduler · Whiteboard30 Jan 2026
Eoin
Digital Wallet (Venmo, Cash App) — Deep Dive 3: Asynchronous Settlement & Reconciliation
New
Digital Wallet · Whiteboard29 Jan 2026
Eoin
Distributed Task Scheduler — API Design
New
Distributed Task Scheduler · Whiteboard29 Jan 2026
Eoin
Digital Wallet (Venmo, Cash App) — API Design
New
Digital Wallet · Whiteboard28 Jan 2026
Eoin
Ad Click Event Aggregation (Google Ads) — Non-Functional Requirements
New
Ad Click Event Aggregation · Whiteboard28 Jan 2026
Eoin
Ad Click Event Aggregation (Google Ads) — API Design
New
Ad Click Event Aggregation · Whiteboard27 Jan 2026
Eoin
Ad Click Event Aggregation (Google Ads) — Deep Dive 4: Click Fraud Detection
New
Ad Click Event Aggregation · Whiteboard26 Jan 2026
Eoin
Top-K Leaderboard — Non-Functional Requirements
New
Top K Leaderboard · Whiteboard26 Jan 2026
Eoin
Music Streaming Service (Spotify) — Non-Functional Requirements
New
Music Streaming Service · Whiteboard26 Jan 2026
Eoin
Autocomplete System (Google Search) — Non-Functional Requirements
New
Autocomplete System · Whiteboard26 Jan 2026
Eoin
Distributed Task Scheduler — Non-Functional Requirements
New
Distributed Task Scheduler · Whiteboard23 Jan 2026
Eoin
Flash Sale System — API Design
New
Flash Sale System · Whiteboard23 Jan 2026
Eoin