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#system-design
3 pieces of content
articleMar 2026experimentFeb 2025case-studyJan 2025
How I Think About System Design
System design isn't about picking the best architecture. It's about making good decisions under constraints while leaving room to evolve.
RuleFlow — Dynamic Rule Engine in Node.js
A Drools-style rule engine where business logic runs on editable JSON rules instead of hardcoded conditionals — demonstrated with an airline loyalty program.
Building a Modular Rule Engine for Credit Decisioning
How I designed a plugin-based rule engine that automated credit decisions, reduced manual review by 30%, and made rule changes deployable in hours instead of sprints.