Master the TLS Handshake | System Design & Web Security Essentials
Ever refreshed a banking app to see if your paycheck hit, only to have it hang for 15 seconds? Behind that delay is probably a TLS handshake – the security dance happening between your device and the server. When I ask engineers about TLS handshakes, they usually mumble something about “certificates” and change the subject. […]
Revolutionize Your UI with Micro Frontends | Complete System Design Guide
Ever been in a meeting where your frontend team looks like they’re about to riot because of that monolithic UI codebase? You’re not alone. Across tech companies, developers are drowning in massive, unwieldy frontends that take forever to update and even longer to scale. Micro frontends are changing this game completely. By breaking your UI […]
Stream Processing on AWS | Real-Time Pipelines Using Kinesis & Lambda
Ever stared at your batch processing system during a critical launch and thought, “This data would’ve been useful… three hours ago”? You’re not alone. While engineers are still building overnight batch jobs, market leaders are making decisions in milliseconds using real-time data streams. Stream processing on AWS isn’t just another buzzword—it’s the difference between reacting […]
Master Batch Processing | Data Engineering for Reports, ML, and CDC
Ever tried explaining to your boss why the monthly sales report is still “processing” three days after the deadline? Yeah, that conversation never goes well. Batch processing should be your secret weapon, not your recurring nightmare. Whether you’re building reports that actually deliver on time, powering machine learning pipelines, or handling change data capture for […]
From HTTP to WebSocket: Understanding the 101 Switch Protocol & Beyond
Ever been in a conversation where one person is stuck talking through a translator while everyone else communicates directly? That’s basically what happens with traditional HTTP requests versus WebSockets. Your browser makes a request, waits for a response, then starts all over again. Refresh, wait. Click, wait. It’s like texting someone who only checks their […]
Getting Started with Apache Kafka: A Beginner’s Guide to Real-Time Data Streaming
Ever opened your email to find a response from three days ago, only to realize your customer has already gone elsewhere? That’s exactly why real-time data processing isn’t just nice-to-have anymore—it’s survival. I’m going to walk you through Apache Kafka, the powerhouse behind real-time data streaming that companies like Netflix and Uber can’t live without. […]
LLMs Explained: The Building Blocks of Modern AI & NLP
Ever stared at ChatGPT spitting out an essay and wondered, “How the heck does this thing actually work?” You’re not alone. Behind that slick interface lies a neural network architecture that would make your high school math teacher’s head explode. I’m going to demystify Large Language Models without the PhD-level jargon that makes most explanations […]
Prompt Engineering Deep Dive: Boosting LLM Output with Precision
Ever stared at a ChatGPT response and thought, “That’s not even close to what I asked for”? You’re not alone. According to recent studies, over 70% of users struggle to get precise outputs from language models on their first attempt. Prompt engineering isn’t just some tech buzzword—it’s the difference between wasting hours on back-and-forth clarifications […]
Space-Efficient Searching: Bloom Filters for Devs and Data Scientists
Ever spent hours optimizing a search algorithm only to watch your memory usage explode as your dataset grows? You’re not alone. When a simple “is this item in the set?” question threatens to crash your entire system, it might be time for a different approach. Enter Bloom filters – the probabilistic data structure that can […]
Boost Performance with Optimistic Locking | Java JPA & SQL Examples
Ever deployed code to production only to find two users accidentally overwrote each other’s changes? Talk about a nightmare. Your database is corrupted, your users are frustrated, and your team is scrambling to fix the mess. This is exactly why optimistic locking exists. It’s your safety net against the chaos of concurrent modifications, without the […]