DZDanny Zhenginblog.hackunited.org·1d ago · 2 min readTaking the Initiative: The Power of Cold OutreachUnderstanding the value of a strong network is only the first step; actively building it requires stepping out of your comfort zone. Often, the bridge between where you are and the opportunity you wan00
DZDanny Zhenginblog.hackunited.org·Aug 3 · 2 min readHow WhatsApp Delivers Billions of Messages Every DaySending a message on WhatsApp feels almost instant. You type a message, tap Send, and within seconds it appears on someone else's phone sometimes on the other side of the world. But what actually happ20
DZDanny Zhenginblog.hackunited.org·Jul 25 · 2 min readThe Infrastructure of Success: Why Networking MattersNetworking often gets a bad rap. For many, the word means images of awkward corporate mixers, forced handshakes, and superficial small talk. But when you strip away the clichés, networking is fundamen10
DZDanny Zhenginblog.hackunited.org·Jul 13 · 3 min readMonolith vs. Microservices: Which Architecture Should You Choose?One of the biggest decisions when building software is choosing the right architecture. It affects how easily your application can be developed, deployed, maintained, and scaled. Microservices are oft10
DZDanny Zhenginblog.hackunited.org·Jul 4 · 2 min readSync vs. Async Code: It’s like making coffee… But without coffeeIf you’ve ever been on a super slow website waiting for it to load, you’ve probably experienced the problem with synchronous code. By default, most code runs synchronously. This means it executes line10
