Lambda Durable Functions (re:Invent 2025) introduces checkpoint-and-replay stateful execution directly in Lambda. A deep technical dive into steps, waits, AI agent pipelines, error handling, cost modelling, and when to choose Durable Functions over AWS Step Functions.
Read more →Tag: Microservices
The Patterns That Actually Matter: What Building Microservices at Scale Taught Me About Distributed Systems
🎓 AUTHORITY NOTE This content reflects 20+ years of hands-on enterprise software engineering and architecture experience. Recommendations are production-tested and enterprise-validated. Executive Summary The transition from monolithic architectures to microservices is often painted as a silver bullet for scalability. However, without the right distributed system patterns, it often results in a “distributed monolith”—a system that […]
Read more →Reference Architecture: A Patient-Provider Platform over Two EHRs on Azure
A reference architecture for a HIPAA-regulated patient platform in front of two EHRs on Azure, with the booking path worked through in detail: who owns the slot, one transaction for the booking and its outbox event, idempotent delivery to the EHR over FHIR, and what happens when the EHR is down.
Read more →The Serverless Revolution: Why AWS Lambda Changed Everything I Thought I Knew About Building Scalable Systems
🎓 AUTHORITY NOTE Drawing from 20+ years of enterprise architecture experience and having migrated dozens of production systems to serverless, representing millions of Lambda invocations monthly. This is battle-tested, production-proven knowledge. Executive Summary There’s a moment in every architect’s career when a technology fundamentally rewrites your mental model of how systems should work. For me, […]
Read more →The Architecture Decision That Will Make or Break Your System: Monolith vs Microservices in 2025
The debate between monolithic and microservices architectures has evolved significantly over the past decade. What was once a straightforward “microservices are better” narrative has matured into a nuanced understanding that the right architecture depends entirely on context. After leading architecture decisions across dozens of enterprise systems, I’ve learned that the most expensive mistakes come not […]
Read more →Event-Driven Architecture: When and How to Implement
What is Event-Driven Architecture? Event-Driven Architecture Overview When to Use Event-Driven Architecture Event Types & Patterns Implementation: Real-World Example Scenario: E-Commerce Order Processing Producer: Publishing Events Consumer: Processing Events Critical Design Decisions Technology Choices Common Pitfalls & Solutions ⚠️ Top 7 EDA Mistakes 1. Event Coupling: Events that know too much about consumers → Keep […]
Read more →