Hire a Node.js Backend Developer — Fixed-Price API & Backend Work
A backend engineer to build or harden your API layer — authentication, data validation, and integrations included.
A lot of AI-generated apps look complete from the frontend but have a backend that's little more than a thin pass-through to the database — no real validation, no proper auth checks, and endpoints that trust whatever the client sends. That's fine for a demo and risky for real users.
We build and harden Node.js backends as fixed-price engagements: new API layers for a feature, authentication and authorization fixes, third-party integrations, and validation/security passes on existing endpoints.
What You Get
- A backend engineer experienced with Node.js, Express/Fastify, and serverless functions
- Proper request validation and authorization checks on every endpoint
- Secure authentication flows — sessions, tokens, and role-based access
- Integrations with third-party APIs (payments, email, storage, and more)
- A fixed price for the defined backend scope
How We Work
- We review your current API layer and identify security and correctness gaps
- Fixed-price quote scoped to the endpoints or integrations you need
- We build inside your existing backend framework and hosting setup
- Endpoints are tested against real request scenarios, not just happy paths
- Documentation handed over for new or changed endpoints
Frequently Asked Questions
Our app was built with an AI tool and the backend feels thin — can you fix that?
Yes — this is a very common starting point. We audit the existing API routes, add the validation and authorization checks that are usually missing, and harden integrations like payments and auth.
Do you work with serverless functions (Vercel, AWS Lambda) or only traditional servers?
Both. Many Next.js projects use serverless API routes, which we work with directly. We also build and harden traditional Node.js servers when that's the existing setup.
Can you add a specific integration, like Stripe or an email provider?
Yes — adding or hardening third-party integrations (payments, email, storage, analytics) is a common fixed-price engagement on its own.
Other Roles We Cover
Next.js Developer
A senior Next.js engineer for your App Router build, migration, or performance pass — no recruiting, no hourly clock.
Learn moreReact Developer
A senior React engineer to build, refactor, or untangle your frontend — scoped and priced before work starts.
Learn moreFull-Stack Developer
One engineer (or small team) who owns frontend, backend, and database together — so nothing falls in the gap between roles.
Learn moreNeed a Node.js Backend Developer? Let's scope it.
Tell us what you're building and we'll come back with a fixed price and timeline — no recruiting process, no hourly clock.
Get in Touch