01Backend engineering
Idempotency in Node.js workers: how to avoid charging a user twice
A backend pattern for making Node.js jobs safe to retry, with examples for payment jobs, idempotency keys, Redis claims, and stored state.
GetHired.dev / field notesIssue 01
Build backend work you can explain
A simple developer portfolio structure with examples for showing projects, decisions, results, code quality, and contact information clearly.
Featured inEngineering Careers3 min read
Editor's picks
View engineering guides02Backend engineering
Designing a fraud detection event pipeline in Node.js
A practical Node.js fraud event pipeline with stable event contracts, idempotent consumers, rules, risk scores, review queues, audit logs, and replay safety.
03Backend engineering
tsconfig.json explained: the TypeScript options that actually matter
A plain-English guide to the tsconfig options that affect real projects: target, module, moduleResolution, strict, lib, include, and noEmit.
04Engineering careers
Will AI coding tools make junior developers less valuable?
A practical look at junior developer value in the age of AI coding tools, with skills that still matter.
Guided reading
View all paths01
Build reliable backend workflows
5 guides02Structure, retries, failed jobs, recovery, and fraud-event processing.
Secure an API at its boundaries
7 guides03Authorization, abuse controls, webhooks, browser policy, and deployment identity.
Understand TypeScript and its runtime boundary
4 guides04Compiler configuration, strictness, npm failures, and HTTP behavior.
Turn backend work into portfolio proof
4 guidesProject scope, decision writing, hiring signals, and interview preparation.
New guides
Recently publishedAI Search, Blogging and Traffic
AI search citations: how to write technical pages that can be checked
Pages are easier to trust when claims have clear scope, dates, examples, and sources. Writing for AI search should improve the human reader too: state t...
Node.js and TypeScript
TypeScript satisfies vs as: preserve useful checking in configuration objects
TypeScript’s `satisfies` operator can validate an object without erasing its inferred property types. That is useful for route maps, feature flags, and ...
Redis
Redis distributed locks: when a lease is not enough
A Redis lock can coordinate short work, but a lease expiring while the original worker is still running can create a split-brain side effect. Use locks ...
API Security
Webhook signature verification: timestamp windows and replay protection
A valid webhook signature does not prove that the request is fresh. Verification should bind the payload to a timestamp, event ID, and a replay policy.
Backend Architecture
REST API pagination: cursor tokens that do not leak database details
Cursor pagination should help a client continue from a stable position without exposing internal IDs, timestamps, or query assumptions. Treat the token ...
AI Agents
AI evaluation gates for tool calls: test actions, not only answers
An agent can write a convincing final answer while calling the wrong tool or using the wrong arguments. Evaluate the action trace, permissions, and side...
AI Agents
AI agent background jobs: checkpoints, cancellation, and human handoff
Long-running agents need the same reliability ideas as workers: durable checkpoints, cancellation, idempotency, and an operator who can take over when t...