Tech Skills

Systems Design & Architecture

Scalability, databases, microservices, APIs, caching and distributed systems

9,976
lessons
Skills in this topic
View full skill map →
Systems Design Basics
beginner
Explain SQL vs NoSQL tradeoffs
Distributed Systems
intermediate
Design event-driven systems with message queues
AI Systems Design
advanced
Design an LLM inference cluster with vLLM
All Reads (4,022) Articles (364)Blog Posts (2911)Tutorials (495)Research Papers (5)News (247)
The 7 System Design Questions Every Senior Engineer Gets Asked (And the Answers That Actually Get…
Medium · Python 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
The 7 System Design Questions Every Senior Engineer Gets Asked (And the Answers That Actually Get…
Not textbook answers. The real frameworks that distinguish hired vs. rejected candidates at FAANG companies in 2025–2026 Continue reading on Stackademic »
Stop Tangling Your Backend
Medium · Python 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Stop Tangling Your Backend
A practical look at Domain-Driven Hexagonal Architecture — and why your future self will thank you for caring about this now. Continue reading on Medium »
Medium · DevOps 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
System Design Interview: How would I Solve a Real ETL Pipeline Question Step by Step
The approach that matters more than the answer: clarifying questions, tradeoffs, and the mistakes most candidates make Continue reading on Medium »
Are you trying to beat Amazon?
Medium · LLM 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Are you trying to beat Amazon?
(The Hidden Risk of Weak Tool Layer Reliability) Continue reading on Medium »
Understanding System Design Through Netflix
Medium · Machine Learning 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Understanding System Design Through Netflix
A Visual Journey From Browser Request to Global Streaming Continue reading on Medium »
Understanding System Design Through Netflix
Medium · DevOps 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Understanding System Design Through Netflix
A Visual Journey From Browser Request to Global Streaming Continue reading on Medium »
Availability ≠ Reliability ≠ Durability ≠ Resilience
Medium · DevOps 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Availability ≠ Reliability ≠ Durability ≠ Resilience
There’s a sentence that shows up in a lot of postmortems, and it goes something like: “the service was unavailable, which impacted… Continue reading on Medium »
Medium · JavaScript 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Micro-Frontend Architecture at Scale: How Module Federation Solves Enterprise Complexity
It’s the kind of situation any senior engineer recognizes immediately: a product that grew too fast for the architecture it was built on. Continue reading on Me
The Engineer’s Guide to Better Software Design Decisions
Medium · Data Science 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
The Engineer’s Guide to Better Software Design Decisions
Software design principles are not theoretical rules reserved for architecture documents. They shape the daily decisions that determine… Continue reading on Med
The Mathematics of Collection: Why State Machines Belong in Your Finance Stack
Medium · Startup 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
The Mathematics of Collection: Why State Machines Belong in Your Finance Stack
Most business owners think of collections as an art — a delicate dance of tone and timing driven by gut instinct. We treat it as… Continue reading on Medium »
Medium · DevOps 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Mastering System Design: A Beginner’s Guide to DevOps and Cloud Architectures
Welcome to the exciting world of modern software engineering! If you are stepping into DevOps, Cloud Computing, or Software Architecture… Continue reading on Me
Pagination vs Infinite Scroll: Why Loading Everything at Once Breaks Systems
Medium · Data Science 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Pagination vs Infinite Scroll: Why Loading Everything at Once Breaks Systems
How modern applications deliver large datasets efficiently with better performance, smoother UX, and scalable API design  Continue reading on CodeX »
Every Senior Engineer Who Passed “Design Twitter” Did These 3 Things First
Medium · Python 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Every Senior Engineer Who Passed “Design Twitter” Did These 3 Things First
Most candidates start drawing boxes. Senior engineers start asking questions. That’s the whole difference. Continue reading on Stackademic »
What is WebAssembly, and why does it matter?
Medium · Data Science 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
What is WebAssembly, and why does it matter?
Bringing powerful calculations to the web browser Continue reading on Medium »
What is WebAssembly, and why does it matter?
Medium · JavaScript 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
What is WebAssembly, and why does it matter?
Bringing powerful calculations to the web browser Continue reading on Medium »
Medium · Python 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
C, Java, Python: What You’re Really Choosing When You Pick a Language
Programming Language Continue reading on JIN System Architect »
Medium · JavaScript 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
How Do the Four Pillars of OOP — Inheritance, Polymorphism, Abstraction, and Encapsulation — Help…
Object-Oriented Programming (OOP) is a powerful programming paradigm that structures code by organizing it into objects, each of which… Continue reading on Medi
Medium · JavaScript 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Why any is a "Type Safety Hole" and Why unknown is the Safer Choice in TypeScript
TypeScript’s type system is one of its greatest strengths. It helps developers catch errors early, ensuring that code behaves as expected… Continue reading on M
Angular Signals vs RxJS: When to Drop Observables for Good
Medium · JavaScript 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Angular Signals vs RxJS: When to Drop Observables for Good
I’ll be honest — when Angular Signals were first announced, I rolled my eyes. Continue reading on Medium »
Designing Single Flight for the Thundering Herd Problem
Medium · JavaScript 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Designing Single Flight for the Thundering Herd Problem
When working on distributed systems like microfrontend architectures with client-side composition — having multiple teams working… Continue reading on Medium »
Designing Enterprise-Grade Offer Management Systems with Rule-Based Decision Engines
Hackernoon 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Designing Enterprise-Grade Offer Management Systems with Rule-Based Decision Engines
Model offer eligibility, combinability, and pricing as a stateless decision service using DMN/DRL. Version rule sets like code, validate before release, and com
InfoQ AI/ML 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Article: Three Pillars of Platform Engineering: A Virtuous Cycle
Platform engineering succeeds when reliability and ergonomics reinforce each other rather than compete. This article explores three foundational pillars: automa
InfoQ AI/ML 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Figma Builds In-House Redis Proxy to Hit Six Nines Uptime
Figma has published a detailed account of how it built an in-house Redis proxy service called FigCache, replacing a fragmented caching stack that had become a l
Deterministic Routing: The Hidden Key to Low Latency
Hackernoon 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Deterministic Routing: The Hidden Key to Low Latency
Random routing scatters requests, kills cache locality, and inflates tail latency in high-throughput systems. We fixed it using a clean two-layer deterministic
I Asked 8 Candidates to Design a Chat System — Here’s Where Most Failed
Medium · ChatGPT 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
I Asked 8 Candidates to Design a Chat System — Here’s Where Most Failed
You drew WebSockets. You mentioned Kafka. You added Cassandra. The interviewer nodded. Then they asked one question — and your entire… Continue reading on Mediu
7 Ways You’re Using NgRx Wrong (And It’s Slowing Your App Down)
Medium · JavaScript 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
7 Ways You’re Using NgRx Wrong (And It’s Slowing Your App Down)
You are not struggling with Angular. You are struggling with how you use NgRx. Continue reading on Medium »
11 Angular Tricks That Separate Average Devs From Senior Engineers (Use These Daily)
Medium · JavaScript 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
11 Angular Tricks That Separate Average Devs From Senior Engineers (Use These Daily)
Your Angular code is not slow because of Angular. It is slow because of decisions you repeat every day. Continue reading on Medium »
InfoQ AI/ML 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Driving and Measuring the Impact of Platform Engineering
Platform engineering has to be approached from a socio-technical perspective, and shaped by all stakeholders, not just developers, Sergiu Petean said in his tal
CQRS Policy in System Design and How its saving the crashing of databases for large systems
Medium · DevOps 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
CQRS Policy in System Design and How its saving the crashing of databases for large systems
First of all the CQRS policy is implemented for large systems not for any small systems which have very limited number of users. Continue reading on Medium »
“Design Instagram” I Froze in 3 Interviews Before I Figured Out the Pattern
Medium · Python 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
“Design Instagram” I Froze in 3 Interviews Before I Figured Out the Pattern
There’s a repeatable framework behind every great system design answer. Nobody teaches it. I’m showing it here. Continue reading on Engineering Playbook »
Netflix Lost $72M in One Hour. Here’s What Their Architecture Was Missing
Medium · JavaScript 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Netflix Lost $72M in One Hour. Here’s What Their Architecture Was Missing
A real production failure, broken down layer by layer, and the system design decisions that could have prevented it Continue reading on Engineering Playbook »
Why 90% of Candidates Fail the Scaling Question (and How to Be in the 10%)
Medium · Data Science 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Why 90% of Candidates Fail the Scaling Question (and How to Be in the 10%)
90% of candidates answer the scaling question with “add more servers.” This guide covers the three-layer framework (compute, data… Continue reading on Level Up
Medium · DevOps 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
What is System Design and why you should learn it in AI Era?
System design consists of two types of designing — one is Low Level and another one is High Level, and both are very very important for… Continue reading on Med
⚡ Circuit Breaker: How Smart Systems Stop One Failure From Crashing Everything
Medium · Data Science 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
⚡ Circuit Breaker: How Smart Systems Stop One Failure From Crashing Everything
A practical look at how resilient architectures isolate failing services, prevent cascading outages, and keep systems responsive under… Continue reading on Pyth
InfoQ AI/ML 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Presentation: Week-Long Outage: Lifelong Lessons
Molly Struve discusses a brutal six-day outage that nearly sank a company. She explains technical lessons like the importance of FMEAs, shadow traffic, and exer
Medium · JavaScript 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
From Writing Code to Building Systems: Lessons from My Journey as a Full-Stack Developer
When I started learning to code, my goal was simple: get things working. Continue reading on Medium »
I Rebuilt My Portfolio Without Any Framework. Here’s What I Learned About the Modern Web
Medium · JavaScript 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
I Rebuilt My Portfolio Without Any Framework. Here’s What I Learned About the Modern Web
I deleted 14,000 lines of code in one night. Continue reading on Medium »
Medium · DevOps 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Designing Resilient Event-Driven Architectures on AWS: Lessons from Enterprise Production Systems
Subtitle: Practical insights from real-world AWS systems, production incidents, and operational reliability in financial environments. Continue reading on Mediu
Blazing Fast Apps: SSR, Hydration, and the View Transitions API
Medium · JavaScript 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Blazing Fast Apps: SSR, Hydration, and the View Transitions API
Server-Side Rendering makes your app load instantly. The View Transitions API makes it feel like a native mobile app. Here is how to… Continue reading on JavaSc
MERN vs Next.js
Medium · JavaScript 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
MERN vs Next.js
In 2026, the world of web development is growing faster than ever. With businesses shifting online, startups launching daily, and remote… Continue reading on Me
AI Evals: It’s Not About the Platforms
Medium · LLM 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
AI Evals: It’s Not About the Platforms
Boss: We need to design a system for realtime streaming of the IPL Finals. Continue reading on Medium »
Architecture 2026: The Engineering Blueprint for High-Concurrency Mobile Ecosystems
Medium · Cybersecurity 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Architecture 2026: The Engineering Blueprint for High-Concurrency Mobile Ecosystems
In the modern Malaysian software landscape, we no longer build “apps” — we build distributed systems. As a senior Application Engineer, my… Continue reading on
I Failed System Design at Meta 3 Times. Interview #4, I Used This Framework. Got the Offer.
Medium · Startup 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
I Failed System Design at Meta 3 Times. Interview #4, I Used This Framework. Got the Offer.
Three rejections. Same mistake. One framework change. Here’s what Meta actually tests that nobody tells you. Continue reading on Stackademic »
The Engineers Getting $350K Offers All Have One Thing in Common — It’s Not LeetCode.
Medium · Python 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
The Engineers Getting $350K Offers All Have One Thing in Common — It’s Not LeetCode.
They walked into the system design round knowing exactly what the interviewer was writing down. You probably don’t. Continue reading on Stackademic »
Interface Segregation Principle in Python: Keep Interfaces Small
Medium · Python 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Interface Segregation Principle in Python: Keep Interfaces Small
The fourth SOLID principle: small, focused interfaces over large, demanding ones. Continue reading on Dev Genius »
Microservices in Production: When to Split, How to Split, Why Most Teams Get It Wrong
Medium · Startup 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
Microservices in Production: When to Split, How to Split, Why Most Teams Get It Wrong
The complete guide to microservices architecture real trade-offs, migration patterns, communication strategies, and the brutal truth about… Continue reading on
I Designed a System for 50M Users That Would Have Crashed at 5K users
Medium · Startup 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
I Designed a System for 50M Users That Would Have Crashed at 5K users
System Design round where I confidently drew boxes on a whiteboard for 40 and never once did the math on whether any of it would actually… Continue reading on M
TypeScript Still Matters — But the Valuable Skill Now Is Designing Safer Boundaries Around It
Medium · JavaScript 🏗️ Systems Design & Architecture ⚡ AI Lesson 2mo ago
TypeScript Still Matters — But the Valuable Skill Now Is Designing Safer Boundaries Around It
Why the best TypeScript engineers no longer stop at types — they design reliable runtime boundaries that keep real systems honest. Continue reading on Medium »