#backendengineering

Model credits, purchases, commissions and refunds as durable postings, then serialize the decisions...

Quick Answer career development goals for backend engineers: Discover a production‑grade...

App Upgrade Architecture Is More Than a Dialog Publishing a new mobile build does not make...

A Node.js service can fill a tax form inline, but accepting the request is not the expensive part....

Stop grepping through unorganized log streams. Here is how to implement structured distributed...

𝗜𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 Modern software systems expect failures to happen. Networks can timeout,...

Mobile API compatibility is not determined by the latest app release. It is shaped by every supported...

Most people notice software through what they can see. A cleaner interface. A faster checkout flow. A...

Invalid emails can destroy your sender reputation. We built an 8-step NestJS verification pipeline with regex, MX checks, disposable/role filters, SMTP probing, greylisting retries, catch-all detection, and 24-hour caching with auto cleanup. Here’s the architecture and key lessons.

Most engineers default to TTL for cache invalidation. But a simple Time-To-Live guarantees stale...

O HTTP acaba de receber um método que desenvolvedores vêm pedindo há mais de uma década. Com a...

9 min read · warehouse execution system, global retail & manufacturing A few years ago I...