ZeevTech Solutions is a Node.js development company building REST APIs, backend services, and third-party integrations for web and mobile products. We handle authentication, payments, real-time features, and database design. Dedicated Node.js developers start at $2,200/month, and most API builds take 4 to 12 weeks.
Node.js is a JavaScript runtime that executes server-side code outside the browser. Its event-driven, non-blocking model handles large numbers of concurrent connections efficiently, which makes it well suited to APIs, real-time features, and services that spend most of their time waiting on databases or third-party calls.
What does a Node.js development company build?
A Node.js development company builds the server side of your product: REST or GraphQL APIs, authentication, business logic, database schemas, background jobs, and integrations with payment, mapping, and messaging providers. At ZeevTech Solutions the same team also builds the Flutter or React client that consumes it.
REST APIs with versioning, pagination, and an OpenAPI specification
Authentication and role-based access control with JWT or session tokens
Payment gateway integration including webhooks, retries, and reconciliation
Real-time features over WebSockets — chat, live tracking, notifications
Background jobs, scheduled tasks, and queue processing
Database schema design, indexing, and query optimisation
How much do REST API development services cost?
REST API development typically costs $4,000 to $15,000 for a production backend serving a single product, depending on the number of endpoints, integrations, and user roles. A dedicated Node.js developer costs $2,200 per month for ongoing work. Both models include documentation and deployment.
The largest cost drivers are third-party integrations and compliance requirements, not endpoint count. A payment gateway with webhook reconciliation is more work than a dozen straightforward CRUD endpoints.
Node.js vs Python for backend APIs: which is better?
Choose Node.js for I/O-heavy APIs, real-time features, and teams already writing JavaScript or TypeScript on the front end. Choose Python when the workload is data science, machine learning, or heavy numerical processing. For a typical mobile or web product backend, Node.js is the faster and cheaper choice.
How do you make sure an API stays secure?
We follow OWASP API Security guidance: validate every input at the boundary, enforce authorisation on every endpoint rather than only at login, rate-limit by client, encrypt data in transit and at rest, keep secrets out of the repository, and log security events without logging personal data.
Schema validation on every request body, query, and parameter
Per-endpoint authorisation checks, not just authentication
Rate limiting and abuse protection on public endpoints
Dependency scanning in CI, with builds failing on known vulnerabilities
Secrets in a managed store — never in the repository or the image
Can you integrate our API with an existing or legacy system?
Yes. We regularly integrate with legacy ERPs, on-premise databases, SOAP services, and partner APIs with incomplete documentation. We start with a written integration contract that defines the data mapping, the failure behaviour, and the retry policy before any code is written.
How do you handle scaling and reliability?
We design services to be stateless so they scale horizontally behind a load balancer, put slow work into queues instead of request handlers, cache aggressively at the edge and in Redis, and add health checks, structured logging, and alerting. Load testing happens before launch, not after the first outage.
How we deliver node.js & api development
1
API design3–5 days
Endpoint contract, data model, and auth strategy agreed in writing before implementation.
2
Schema & migrations3–7 days
Database design, indexes, and versioned migrations.
3
Implementation sprints3–8 weeks
Endpoints built in two-week sprints with tests and a live staging environment.
4
Integration & hardening1–2 weeks
Third-party integrations, rate limiting, error handling, and security review.
5
Load test & deploy3–5 days
Load testing, monitoring, alerting, and CI/CD pipeline setup.
6
Documentation & handover2–3 days
OpenAPI spec, environment guide, and runbook for your team.
Technologies we use
Node.js
Express
TypeScript
PostgreSQL
MySQL
MongoDB
Redis
Laravel
Docker
AWS
Proof
Node.js & API Development We Have Shipped
Live products you can open and verify, plus platforms running in production today.
Fashion & E-Commerce
TrendiPeople
A London-based marketplace connecting customers with tailors, stylists, and personal shoppers — location-aware appointment booking, in-home services, secure payments, and provider ratings.
A unified operations platform — CRM pipeline, HRMS, inventory management, and analytics dashboards with role-based access and a full admin panel, from sales floor to leadership.
React
Node.js
MySQL
AWS
Online Grocery Delivery
GroceryBoo
A US-based grocery and meal delivery platform — customers browse fresh categories, order from preferred stores, pay in-app, and follow their delivery live with rider chat and long-distance delivery support.
Straight answers on cost, timelines, ownership, and delivery for node.js development company.
How much does REST API development cost?
A production REST backend for a single product typically costs $4,000 to $15,000, driven mainly by integrations and user roles rather than endpoint count. Ongoing backend capacity is available as a dedicated Node.js developer at $2,200 per month. Every engagement includes an OpenAPI specification and deployment.
Should I use Node.js or Python for my backend?
Use Node.js for I/O-heavy APIs, real-time features, and teams already writing JavaScript or TypeScript on the front end — one language across the stack reduces context switching and hiring cost. Choose Python when the core workload is machine learning, data science, or heavy numerical processing.
Do you provide API documentation?
Yes. Every API ships with an OpenAPI specification, browsable documentation, and a Postman collection, plus a runbook covering environments, secrets, and deployment. Documentation is written alongside the endpoints rather than retrofitted, so it does not drift out of date after handover.
Can you build the backend for an app another team is building?
Yes, and it is a common engagement. We agree the API contract with your mobile or front-end team up front, publish a mock server so they can build against it immediately, and then deliver the real implementation against that contract with a staging environment for integration testing.
How do you handle database design?
We model the schema against real workflows before writing endpoints, choose PostgreSQL or MySQL for relational data and MongoDB where the shape genuinely varies, and add indexes based on the queries the product actually runs. All changes ship as versioned migrations so environments never drift.
What happens if our API traffic grows quickly?
Services are stateless by design, so they scale horizontally behind a load balancer without code changes. Slow work runs in queues rather than request handlers, hot reads are cached in Redis, and monitoring alerts on latency and error-rate thresholds so capacity problems surface before your users notice them.
