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Build reliable backend workflows
Follow one operation from application structure through retries, failed jobs, recovery, and fraud-event processing.
- How to structure a Node.js backend project without overengineering5 min read
A practical Node.js backend folder structure that keeps routes, services, repositories, jobs, and config understandable.
- Idempotency in Node.js workers: how to avoid charging a user twice5 min read
A backend pattern for making Node.js jobs safe to retry, with examples for payment jobs, idempotency keys, Redis claims, and stored state.
- Queue dead-letter pattern in Node.js: what to do with failed jobs4 min read
Design a Node.js dead-letter workflow with bounded retries, useful failure records, replay controls, idempotent workers, alerts, and safe operator recovery.
- Database restore tests: the backup step teams forget5 min read
Turn database backups into a tested recovery process with clear RPO and RTO targets, isolated restore drills, integrity checks, application tests, and evidence.
- Designing a fraud detection event pipeline in Node.js6 min read
A practical Node.js fraud event pipeline with stable event contracts, idempotent consumers, rules, risk scores, review queues, audit logs, and replay safety.
Secure an API at its boundaries
Start with authorization, then add abuse limits, authentic integrations, browser policy, deployment identity, and negative tests.
- OWASP API Security Top 10 explained for Node.js backend developers5 min read
Apply the OWASP API Security risks to Node.js routes with object-level authorization, schema validation, rate limits, inventory, logging, and abuse tests.
- Rate limiting in Node.js with Redis: a practical guide4 min read
Build an atomic Redis rate limiter for Node.js, choose useful identities and limits, handle proxy IPs, and decide what happens when Redis is unavailable.
- Webhook signature verification in Node.js: the part tutorials skip4 min read
Verify webhook signatures in Node.js without corrupting the raw body, avoid timing leaks, reject stale deliveries, and process valid events idempotently.
- CORS misconceptions: why disabling it is not an API security plan4 min read
Understand what CORS actually controls, configure credentialed origins safely, debug preflights, and keep authentication and authorization as separate API boundaries.
- Content Security Policy explained for normal web developers7 min read
A practical CSP guide with report-only rollout, strict policies, nonces, hashes, third-party scripts, reporting, and production checks.
- Next.js Server Actions security checklist for real apps4 min read
Secure Next.js Server Actions with in-action authorization, strict validation, safe return values, abuse limits, idempotency, logging, and negative tests.
- GitHub Actions OIDC explained: stop storing long-lived cloud secrets4 min read
Replace long-lived deployment keys with GitHub Actions OIDC, narrow cloud trust by repository and environment, and test denial before deleting old secrets.
Understand TypeScript and its runtime boundary
Learn what the compiler controls, what strict mode catches, and how Node and npm can still disagree with the editor.
- tsconfig.json explained: the TypeScript options that actually matter5 min read
A plain-English guide to the tsconfig options that affect real projects: target, module, moduleResolution, strict, lib, include, and noEmit.
- What strict: true actually checks in TypeScript4 min read
A simple explanation of what TypeScript strict mode catches, with examples for null checks, implicit any, this binding, class fields, and errors.
- How to fix npm install errors: ERESOLVE, ENOENT, and permission denied4 min read
Fix npm install errors by identifying ERESOLVE, ENOENT, EACCES, ETARGET, and network failures before changing lockfiles or dependency versions.
- HTTP QUERY method explained: the new method between GET and POST8 min read
A practical guide to the new HTTP QUERY method, why RFC 10008 added it, how it compares with GET and POST, and when backend developers should care.
Turn backend work into portfolio proof
Choose a serious workflow, document decisions and failures, and make the result understandable to an engineering reviewer.
- How to build a developer portfolio recruiters can understand in five minutes3 min read
A simple developer portfolio structure with examples for showing projects, decisions, results, code quality, and contact information clearly.
- How to scope a backend portfolio project recruiters can evaluate4 min read
Choose a backend portfolio project with one serious workflow, visible engineering decisions, realistic failure cases, and proof recruiters can review quickly.
- How junior developers can stand out when everyone uses AI5 min read
How junior developers can prove judgment, debugging skill, communication, and ownership in an AI-assisted coding market.
- Is learning DSA actually necessary for backend roles?5 min read
A practical DSA guide for backend beginners, with examples for interviews, real backend systems, learning splits, and what level is enough.