Hire a Node.js Backend Developer
I design and build backend systems in Node.js and NestJS — scalable REST APIs, auth and RBAC, queues and webhooks, and PostgreSQL data models — with the failure modes handled before they reach production. Backends that stay correct under load and don't fail silently.
A backend earns trust in the boring parts: idempotent webhooks, bounded queues, tenant-scoped queries, structured logging and clear error handling. I build with NestJS for its module boundaries so payments, tenancy and jobs stay isolated as the product grows, and I make the system observable so you find problems before your customers do.
What you get
- REST API design and versioning with typed contracts
- NestJS module architecture — clean boundaries between domains
- Authentication, JWT/OAuth2, and tenant-scoped RBAC
- Background jobs & queues (BullMQ / Redis) and idempotent webhook handling
- PostgreSQL modeling, migrations, and query performance
- Structured logging, error handling, rate limiting and security hardening
How I work
The data model and the boundaries between modules are decided before endpoints — they're what everything else depends on.
Webhooks are idempotent, jobs are bounded and retried, and errors are logged with context. Silence is treated as a bug.
Caching, queues and rate limits are placed where measurement says they're needed — not sprinkled everywhere by reflex.
Built the NestJS backend for Paylio (multi-tenant WPS-compliant payroll with RBAC and Stripe subscriptions) and the server-side pipeline for iBoardingPass over live Trust Payments / Norbr webhooks — with content-hash-keyed queues and HMAC-verified callbacks in the Petunia render pipeline.
Tech stack
Related work
FAQ
Express or NestJS?
NestJS for anything that will grow — its module/DI structure keeps domains isolated, which is exactly what saves you when payments, tenancy and jobs start touching each other. Express is fine for something small and short-lived.
How do you handle webhooks and payments reliably?
Idempotency keys so a retried webhook can't double-charge or double-fulfill, signature/HMAC verification so a forged callback can't act, and a queue so a burst can't take the box down. I've built exactly this for live PSP and print-fulfillment webhooks.
Can you scale an existing Node API?
Yes. I profile the real bottleneck — usually N+1 queries, missing indexes, or synchronous work that belongs on a queue — fix it, and add the observability so the next bottleneck is obvious.