01 / 04
The API was built fast and now nobody understands it
We refactor it with tests, documentation and monitoring.
Development
Hire a Node.js developer
Hire a Node.js developer for APIs and integrations. Hire a Node.js developer from Wasevo for REST/GraphQL APIs, backends, integrations and automation services: Express, NestJS, PostgreSQL, Redis, queues, with lead review and weekly demos.
$1,299Part-time from
$999API project from
160 hHours, full-time
A backend that your product can grow on.
We build our APIs, automation services and SaaS backends in Node.js. A dedicated Node.js developer from Wasevo builds and maintains that layer, including endpoints, auth, queues, integrations and the deployment behind them.
A good fit for
SaaS teams, agencies and businesses that need an API or backend built or stabilised, integrations with third-party systems, or automation services behind n8n and AI agents.
SaaS backendsIntegration projectsAutomation servicesAgencies (white-label)Mobile app APIsLegacy Node rescues
What we work toward
A documented, tested API with monitoring, a developer who owns it month to month and a clear path to scale.
When it is time to make a change.
02 / 04
Integrations keep breaking
We design retry logic, queues and error handling into each integration from the start.
03 / 04
Performance under load
Profiling, caching (Redis), background jobs and horizontal scaling.
04 / 04
No backend capacity in-house
A dedicated engineer with a lead behind them.
Node.js engagement scope.
Each Node.js engagement can cover the following areas.
APIs
REST and GraphQL with Express or NestJS, OpenAPI docs, auth (JWT, OAuth), rate limiting.
Data
PostgreSQL, MySQL, MongoDB, Prisma/TypeORM, migrations and backups.
Integrations
Payments, CRMs, WhatsApp, email, AI models, n8n and webhooks.
Realtime & jobs
WebSockets, queues (BullMQ), scheduled jobs, notifications.
Operations
Docker, CI/CD, monitoring, logging and on-call handover.
Two weeks to first deploy.
- 01
Review
Codebase and infrastructure review in week one.
- 02
Stabilise
Tests, monitoring and the most urgent fixes.
- 03
Build
Weekly deliveries against your backlog.
- 04
Document
We keep OpenAPI docs, runbooks and handover notes up to date as we work.
Node.js developer rates.
Part-time: from $1,299/month
80 hours.
Full-time: from $2,499/month
160 hours.
Senior backend engineer: from $3,499/month
Architecture and scaling.
Fixed-price API project: from $999
Scoped after a short review.
The backend behind our own products.
FlowMaticX, our AI lead-qualification SaaS, runs on the same Node.js patterns we bring to client work.
Every engagement ships with documentation, tests and monitoring so the next developer can take over.
Auth, rate limiting and OpenAPI docs
Takes over existing codebases
Payments, CRMs, WhatsApp, AI models
Docker, VPS or cloud deployment
Pick the scope that fits
Starter
Part-time
From $1,299/ month
For a backend that needs 80 hours a month of API and integration work.
- 80 hours a month
- REST or GraphQL APIs
- Express or NestJS
- OpenAPI docs
- Weekly demo
Growth
Full-time
From $2,499/ month
For SaaS teams that need one engineer owning the API 160 hours a month.
- 160 hours a month
- Queues, jobs and realtime
- Postgres, MySQL or MongoDB
- Monitoring and CI/CD
- Lead review on every PR
Scale
Senior backend
From $3,499/ month
Senior backend engineers.
- APIs, queues and integrations
- Architecture reviews
- Fixed-price API projects from $999
- Monthly engagement
Fixed-price API projects start at $999. Senior backend engineers start at $3,499/month.
How much does it cost to hire a Node.js developer?
From $1,299/month part-time and $2,499/month full-time. Senior backend engineers start from $3,499/month, and fixed-price API projects from $999.
Do you build GraphQL as well as REST?
Yes, with Express, NestJS or Apollo depending on the product.
Can you take over an existing Node.js codebase?
Yes. Week one is a review and stabilisation sprint before new features.
Do you handle hosting and deployment?
Yes. We handle Docker, CI/CD, VPS or cloud hosting, monitoring and backups.
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A free 15-minute call, then a written scope and estimate. No obligation, no sales script.