Articles and thoughts on software development.
Designing response contracts that eliminate guesswork in the frontend
What Actually Breaks When Duplicate Requests Hit Your Backend
A deep dive into building a scalable and stable “Who Unfollowed Me?” analyzer, focusing on pagination, rate limiting, and algorithmic efficiency. This article explores how a modular Node.js backend and an optimized O(n) comparison strategy create a production-ready foundation for handling large-scale social graph data.
Scaling follower analysis from small accounts to users with 100k+ followers introduces challenges like HTTP timeouts and API rate limits. This article explores how a Redis + BullMQ powered background job architecture transforms the system into a resilient, asynchronous service with real-time progress tracking.
A clear, practical overview of how isolation levels shape transaction behavior, explaining dirty reads, non-repeatable reads, and phantom reads with real-world examples—while highlighting the balance between data consistency and system performance in modern applications.
A hands-on comparison of Node.js and Go built on the same product, revealing how different backend choices shape performance, scalability, and engineering mindset—showing that real-world results depend more on implementation than the language itself.
