@SirCatalyst

Observability Engineering in Production Systems: Structured Logging, Metrics, and Distributed Tracing at Scale

Apr 12 · 16 min read · Part 3 of 3: Security, Metrics, and Full-Stack Observability Part of a three-part series: Part 1: Structured Logs and Correlation IDs Part 2: Centralized Logging and Async Pipelines This article cover

Observability Engineering in Production Systems: Structured Logging, Metrics, and Distributed Tracing at Scale

Apr 12 · 13 min read · Part 2 of 3: Centralized Logging and Async Pipelines Part of a three-part series: Part 1: Structured Logs and Correlation IDs Part 3: Security, Metrics, and Full-Stack Observability This article cover

Observability Engineering in Production Systems: Structured Logging, Metrics, and Distributed Tracing at Scale

Apr 12 · 16 min read · Part 1 of 3: Structured Logs and Correlation IDs Part of a three-part series: Part 2: Centralized Logging and Async Pipelines Part 3: Security, Metrics, and Full-Stack Observability In late 2023, Hel

Designing a Reliable Payment API for Real-Time Donations

Apr 6 · 45 min read · Introduction Helpa is a donation platform that connects donors to campaigns for medical bills and emergency relief across Nigeria — serving both individual fundraisers and NGOs. Its payment infrastruc

Designing a Scalable Multi-Tenant Architecture with NestJS: Lessons from Building Real-World Systems

Mar 30 · 12 min read · I've spent the last few years building multi-tenant platforms, most recently Festease (an event management platform), on NestJS with a mix of MongoDB and PostgreSQL. Along the way, I got a lot of thin