Distributed Systems

• 2026/02/01 Leader Election with MongoDB TTL Leases
• 2026/01/15 Metrics-First Observability in Practice
• 2026/01/01 Metrics-First Observability: A Conceptual Model
• 2025/12/11 Understanding SWIFT: The Global Messaging Network Behind International Finance
• 2025/12/10 ACH Explained: Following a Payroll Transaction Through the U.S. Banking System
• 2025/12/10 How Credit Card Payments Work: An Introduction to the Card Payment Ecosystem
• 2025/12/01 U.S. Domestic Payment Rails