Blog
22 articles on backend engineering, system design, and cloud infrastructure.
Production-Ready Backend Architecture
Putting it all together. Architecture layers, monolith vs microservices, the five pillars of production readiness, and common mistakes.
Concurrency
Doing many things at once without breaking everything. Concurrency vs parallelism, language models, race conditions, and practical rules.
Scaling Part 2
CDNs, read replicas, sharding, finding bottlenecks, N+1 queries, and a performance checklist for production backends.
Scaling Part 1
From one server to many. Vertical vs horizontal scaling, load balancers, stateless architecture, and quick performance wins.
Backend Security
Attacks you need to know about. SQL injection, XSS, broken auth, defense in depth, and a practical security checklist.
Graceful Shutdown
How to stop your server without breaking things. SIGTERM handling, draining connections, health checks, and zero-downtime deployments.
Logging and Monitoring
Knowing what your app is doing in production. Log levels, structured logging, metrics, alerting, and distributed tracing.
Configuration
Keeping secrets out of your code. Environment variables, secret managers, config hierarchy, and validation at startup.
Error Handling
Building systems that don't fall apart. Error types, handling strategies, retries, circuit breakers, and fault-tolerant design.
Full-Text Search
When SQL LIKE won't cut it. Inverted indexes, Elasticsearch, fuzzy matching, and when to use a dedicated search engine.
Background Jobs
Not everything should happen during a request. Message queues, workers, retry strategies, and when to push work to the background.
Caching
Why hit the database when you don't have to. Cache layers, invalidation strategies, Redis, and when caching makes sense.
Databases and PostgreSQL
How backends store persistent data. Connection pools, tables, relationships, indexes, transactions, and migrations explained simply.
REST API Design That Developers Actually Like
How to design URLs, choose methods, handle errors, and version your APIs so other developers can use them without reading docs.
Controllers, Services, Repositories, and Middleware
How to organize backend code into layers that are testable, reusable, and don't turn into spaghetti as your app grows.
Validation and Data Transformation
Never trust client input. Here's how to validate, sanitize, and transform data at every layer of your backend.
Authentication and Authorization in Backend Systems
How your server knows who's making a request and what they're allowed to do. JWTs, sessions, roles, and common security mistakes.
Serialization and How Data Travels Between Systems
Your server has objects in memory. The network only understands bytes. Serialization bridges the gap. Here's how it works and why JSON won.
Request Routing in Backend Architecture
How does your server know which function to call for each URL? Routing is pattern matching, and every framework does it the same way.
HTTP and How the Web Actually Talks
HTTP is the protocol your backend speaks. Here's how requests, responses, methods, status codes, and headers actually work under the hood.
Why First Principles Beat Framework Tutorials
Most devs learn backend by memorizing frameworks. Here's why understanding the underlying concepts makes you 10x faster in any language.
Backend 101: What It Is and Why It Exists
A complete introduction to backend engineering. What a backend does, how requests travel from browser to server, and why frontends can't replace it.