01
Email Deliverability for Developers: SPF, DKIM, DMARC and Beyond
What we learned running our own SMTP server: SPF, DKIM and DMARC, reverse DNS, IP warm-up and keeping a sender reputation healthy.
Sep 14, 20264 min read#DevOps
02
Monorepos with pnpm Workspaces and Turborepo
One repository for web, admin and API: pnpm workspaces for strict dependencies and Turborepo caching so only what changed gets built.
Aug 24, 20263 min read#DevOps
03
Technical Debt: How to Measure It and Actually Pay It Down
Find debt hotspots with git history and incident data, explain the cost in business terms, and pay it down continuously instead of heroically.
Aug 3, 20264 min read#Leadership
04
Event-Driven Architecture: Decoupling Services with Message Queues
Commands vs events, designing event contracts, at-least-once delivery, ordering and dead-letter queues in event-driven systems.
Jul 13, 20264 min read#Architecture
05
Kubernetes for Application Developers: What You Actually Need to Know
The handful of Kubernetes settings that prevent most production incidents: resources, readiness vs liveness, graceful shutdown and rollbacks.
Jun 22, 20264 min read#DevOps
06
Integrating LLMs into Production Apps: Patterns and Pitfalls
Going from AI demo to production: fallbacks, grounding, prompt injection defenses, cost control and evaluation for LLM-powered features.
Jun 1, 20264 min read#AI
07
API Versioning and Backward Compatibility Without the Pain
Most API versions are avoidable. How to evolve APIs without breaking clients, and how to version and deprecate when you really must.
May 11, 20263 min read#Backend
08
Infrastructure as Code with Terraform: Lessons from Production
Remote state, blast-radius splits, reviewing plans instead of code, deletion protection and drift detection — Terraform habits from production.
Apr 20, 20264 min read#DevOps
09
A Testing Strategy for Real Teams: Confidence Over Coverage
Coverage is not confidence. Why integration tests against real dependencies deserve the most investment, and how to keep tests trustworthy.
Mar 30, 20263 min read#Backend
10
Building Resilient Systems: Timeouts, Retries and Circuit Breakers
Timeouts, retries with jitter, circuit breakers, fallbacks and bulkheads: how to keep one failing dependency from taking down everything.
Mar 9, 20264 min read#Architecture
11
Writing Design Docs That Get Read and Approved
A structure for design docs that busy reviewers actually read: problem, goals, non-goals, alternatives, risks and a rollback plan.
Feb 16, 20264 min read#Leadership
12
Rate Limiting at Scale: Token Buckets, Sliding Windows and Redis
Token buckets, sliding windows and an atomic Redis implementation for rate limiting across many API instances, with sensible failure modes.
Jan 26, 20263 min read#Backend
13
Transactions and Isolation Levels Explained with Real Bugs
A transaction alone does not make concurrent code safe. Lost updates, write skew and how atomic updates, locks and retries prevent them.
Jan 5, 20264 min read#Database
14
Server State vs Client State: Rethinking Frontend State Management
Most of your global store is really a cache of server data. Separating server state from client state makes React apps dramatically simpler.
Dec 15, 20253 min read#Frontend
15
Monolith First: When (and When Not) to Split into Microservices
Microservices solve organizational problems at a real operational cost. Start with a modular monolith and split only when the signals are clear.
Nov 24, 20253 min read#Architecture
16
Observability Beyond Logs: Traces, Metrics and SLOs
Structured logs, RED metrics, OpenTelemetry traces and SLOs with error budgets — and why you should alert on symptoms, not causes.
Nov 3, 20253 min read#DevOps
17
Feature Flags Done Right: Ship Safely Without Long-Lived Branches
Separate deploy from release with feature flags, roll out progressively, and avoid the flag debt that turns a superpower into a trap.
Oct 13, 20253 min read#DevOps
18
PostgreSQL Indexing Deep Dive: B-tree, GIN and Partial Indexes
Composite column order, covering, partial and expression indexes, GIN for arrays and JSONB — and how to find the indexes nothing uses.
Sep 22, 20253 min read#Database
19
Background Jobs with BullMQ: Retries, Backoff and Dead Letters
Reliable background processing with BullMQ: idempotent handlers, exponential backoff, unrecoverable errors, dead letters and graceful shutdown.
Sep 1, 20254 min read#Backend
20
JWT, Sessions and Refresh Tokens: Getting Authentication Right
JWTs or sessions is the wrong question. Short-lived access tokens, rotating refresh tokens and reuse detection give you the best of both.
Aug 11, 20254 min read#Security
21
Web Performance Budgets and Core Web Vitals in Practice
Fix LCP, INP and CLS for real users, then keep them fixed with a performance budget that fails the build when a regression slips in.
Jul 21, 20253 min read#Frontend
22
Designing a Multi-Tenant SaaS Architecture
Database per tenant, schema per tenant or a shared schema? The trade-offs, and how we made tenant isolation automatic in a white-label SaaS.
Jun 30, 20254 min read#Architecture
23
Writing Postmortems That Actually Prevent Incidents
Most postmortems end with "be more careful". Here is how to write ones that find real contributing factors and stop incidents from repeating.
Jun 9, 20253 min read#Leadership
24
Caching Strategies That Don't Lie: Invalidation in Practice
Fast is easy, fast and correct is hard. Cache-aside, stampede protection and versioned keys for caches that never show stale data by surprise.
May 19, 20253 min read#Backend
25
Securing Node.js APIs: An OWASP-Driven Checklist
A practical, OWASP-driven security checklist for Node.js APIs: access control, injection, validation, dependencies, SSRF and secrets.
Apr 28, 20253 min read#Security
26
The Transactional Outbox Pattern: Reliable Events Without Distributed Transactions
Saving to the database and publishing an event are two writes that can fail independently. The outbox pattern makes them one.
Apr 7, 20253 min read#Architecture
27
React Server Components in Production: Lessons Learned
Hard-earned lessons from shipping the Next.js App Router: where to draw client boundaries, avoiding waterfalls and keeping secrets on the server.
Mar 17, 20253 min read#Frontend
28
Zero-Downtime Database Migrations with Expand and Contract
Rename columns and change schemas on live tables without an outage, using the expand and contract pattern and lock-aware DDL.
Feb 24, 20253 min read#Database
29
Code Review as a Senior Engineer: What to Look For
Stop reviewing semicolons. A practical checklist for reviewing design, correctness, security and operability — and giving feedback people learn from.
Feb 3, 20253 min read#Leadership
30
Designing Idempotent APIs: Retries Without Double Charges
Retries are inevitable. Learn how idempotency keys, atomic inserts and downstream keys keep a retried request from charging a customer twice.
Jan 13, 20254 min read#Backend
31
Building Scalable React Applications: Best Practices for 2024
Learn the essential patterns and practices for building large-scale React applications that are maintainable and performant.
Dec 28, 202410 min read#Frontend
32
Next.js 14 App Router: The Complete Developer's Guide
Master the new App Router in Next.js 14 with server components, streaming, and advanced patterns.
Dec 25, 202412 min read#Frontend
33
Node.js Backend Architecture: Patterns for Production
Discover battle-tested architecture patterns for building robust and scalable Node.js backend applications.
Dec 22, 202414 min read#Backend
34
MongoDB Performance Optimization: Complete Guide
Learn advanced techniques to optimize MongoDB queries, indexes, and schema design for maximum performance.
Dec 20, 202413 min read#Database
35
Docker Containerization: From Development to Production
Master Docker for modern application deployment with practical examples and production-ready configurations.
Dec 18, 202411 min read#DevOps
36
PostgreSQL Query Optimization: Advanced Techniques
Deep dive into PostgreSQL performance tuning with indexing strategies, query plans, and optimization techniques.
Dec 15, 202412 min read#Database
37
CI/CD Pipeline with GitHub Actions: Complete Setup Guide
Build robust CI/CD pipelines using GitHub Actions for automated testing, building, and deployment.
Dec 12, 202411 min read#DevOps
38
TypeScript Advanced Patterns for Professional Developers
Master advanced TypeScript patterns including generics, utility types, and type-safe design patterns.
Dec 10, 202413 min read#Frontend
39
REST API Design: Best Practices and Standards
Learn how to design clean, intuitive, and scalable REST APIs following industry best practices.
Dec 8, 202412 min read#Backend
40
Nginx Configuration for Production: Complete Guide
Configure Nginx for production with SSL, load balancing, caching, and security best practices.
Dec 5, 202411 min read#DevOps