Systems Design & Architecture

Foundational web development practices still shape how websites and web applications perform, protect users and hold up when real-world conditions aren’t ideal.

Sean Klein discusses why "human error" is a dangerous myth in complex systems. Sharing the inside story of Azure’s 2023 global WAN outage, he explains how moder

Render infinitely deep comment threads with recursion — and survive the performance traps that break them at scale. Continue reading on Medium »

State, Sovereignty, and the PARQ Solution Continue reading on Medium »

In early 2024, we were a seven-person engineering team building an admin portal that touched loan policies, partner configurations, A/B… Continue reading on Jav

The 1913 engineering disaster that changed how we buld - and what it means for the ground beneath your home Continue reading on Medium »

The 1913 engineering disaster that changed how we buld - and what it means for the ground beneath your home Continue reading on Medium »

Engineering orgs don't usually stall because the infrastructure can't scale — AWS will sell you all the compute you want. They stall because the number of peopl

Scalable data systems stay stateless, cache aggressively, choose consistency trade-offs consciously, decouple with queues, pick the right… Continue reading on M

Every serious Python developer hits this wall. Here is how to climb it. Continue reading on Medium »

Distributed Trading Network with Granular Permission Control Continue reading on Medium »

“Let’s do microservices. That’s how Netflix does it.” — NOO! Continue reading on Medium »

A visual walkthrough of how io_uring works: shared rings, SQEs/CQEs, batching, SQPOLL, multishot operations, linked operations, fixed/provided buffers, and the

Why build doesn’t mean repaint, how GlobalKeys trigger deactivate, and why the Element Tree is important to the State.

It was not the technology. It was how we framed the choice before we made it. Continue reading on Stackademic »

Distributed transactions, which involve operations spanning multiple services, present significant challenges in microservices… Continue reading on Medium »

When we talk about design patterns, there are countless options available in software development. However, in modern practice, we rarely… Continue reading on M

A practical, reference-backed introduction to ADR and RFC: two documents that change how engineering teams make and preserve technical… Continue reading on Medi

Learn how to design and implement Publisher-Subscriber systems the way production architectures work — plus a powerful mental framework… Continue reading on Med

Why the smartest teams are quietly choosing boring architecture again, and why your startup probably never needed 40 services in the first… Continue reading on

Concurrent Task Scheduler System Design: LLD, Design Patterns, and Production Realities Continue reading on Medium »

Why your app works perfectly in development, then suddenly explodes with hydration errors in production Continue reading on Medium »

I’m a systems engineer who never wrote real code. AI got me building — and showed me that the failures everyone blames on vibe coding actua Continue reading on

Preface — some context Continue reading on Data Science Collective »

Most developers do not have a Redux problem. They have a thinking problem. Continue reading on Medium »

Every dot in a method chain is a dependency you didn’t intend to write. Continue reading on Level Up Coding »

Creating maintainable state machines using JavaScript generators Continue reading on Level Up Coding »

Before migrating a distributed database to the cloud, do not start with node count or capacity sizing. Start with the failure model. Decide replication strategy

Efficient C++ Programming for Modern 64-bit CPUs, Chapter 4/part 2 Here comes the 2nd installment of (VERY DRAFT) Chapters from my (and Dmytro Ivanchykhin's) up

Imagine building an e-commerce application where user registration, product management, payment processing, order tracking, inventory… Continue reading on Mediu

Web engineering prizes speed and scale, but healthcare engineering offers a deeper lesson: silent failure is the worst kind of failure.

A search feature gets slow not because you lack a search engine, but because the access pattern outgrew the data model. To fix it before buying new infrastructu

When people talk about system design, the conversation often starts with diagrams. Continue reading on Medium »

Most software architectures end up looking like the Leaning Tower of Pisa: fundamentally flawed, structurally terrifying, but somehow held… Continue reading on

Simon Brown explains that the C4 Model started not as a grand design theory, but as a practical answer to an embarrassing problem. Furthermore, he answers the q

The failure modes that take systems down, and where to look for each one Continue reading on Medium »

How we decide is at the core of architecture, and the architecture advice process is a way to decentralize architectural decisions. It needs to be supported by

Three rejections. Same feedback every time. The fix took one weekend to understand. Continue reading on Medium »

“First solve the problem, then write the code. Before writing the code, design the system.”  Continue reading on Medium »

From spaghetti to scalable: How to build correct systems? Continue reading on Level Up Coding »

Managing state in a growing React application often starts simple but can quickly become chaotic. Components pass data through multiple… Continue reading on Med

Why Most Python Developers Stay Stuck Writing Scripts While Top Engineers Build Systems Continue reading on Python in Plain English »

Why Most Python Developers Stay Stuck Writing Scripts While Top Engineers Build Systems Continue reading on Python in Plain English »

Why Most Python Developers Stay Stuck Writing Scripts While Top Engineers Build Systems Continue reading on Python in Plain English »

Build modular, scalable Angular applications with shared code, independent deployments, and Nx-powered development workflows. Continue reading on Medium »

Every Django tutorial teaches you the same workflow: define a model, write a view, render a template, ship it. That workflow works… Continue reading on Medium »

The trade-offs behind the hype — and the metric that makes the monolith look smart. Continue reading on Medium »

Beyond Writing Code: What Building O’Ben Brands Taught Me About Engineering Real Systems Continue reading on Medium »