Fast, scalable back ends, APIs and real-time features for web and mobile apps.
Stack we work in
Figures as of Oct 2026
Trusted by
Node.js runs the back end behind many web and mobile apps: the APIs, real-time features, background jobs and integrations users never see but rely on every day.
We build Node.js back ends in TypeScript that stay fast under load and are easy to extend, using NestJS for structured applications, Express or Fastify for lean services, and serverless functions where they cut cost. We also take over and improve existing Node.js code.
Response times climb as users grow, and the cause is unclear.
The app runs on an unsupported Node.js version with outdated dependencies.
A quick prototype grew into production code that is hard to change.
Chat or notifications fail when more than one server is running.
There are no traces or alerts, so issues are found by users.
Outcomes
APIs, push notifications and file handling for Flutter and React Native apps.
Learn moreMulti-tenant back ends with billing, roles and webhooks.
Learn moreChat, live tracking, dashboards and collaborative tools.
Connectors and sync jobs between your business systems.
Learn moreServices that call LLMs, stream responses and run agent tools.
Learn moreEvent-driven functions for uploads, webhooks and scheduled jobs.
TypeScript code in your repository with OpenAPI docs.
Unit, integration and API tests running on every change.
Containers or serverless functions defined in code in your cloud.
Logs, traces, dashboards and alerts.
Architecture notes, set-up guide and runbooks.
The server side of your web and mobile apps.
Built with
Live updates without page refreshes.
Built with
Pay for what runs, scale automatically.
Built with
Split large systems sensibly and connect them.
Built with
Keep Node.js services healthy.
Built with
Since 2018 we have delivered 680+ projects for 310+ clients, and 98% of clients keep working with us.
We build Node.js back ends in TypeScript, often on NestJS, with tests and CI.
We build WebSocket features and serverless or container back ends, and recommend what fits.
We use input validation, OAuth 2.0 and dependency scanning on every project.
Work with a project team, or hire Node.js developers with a 15-day free trial.
Featured case study
Every business already owns the sensor network it needs. CCTV records everything and tells you nothing — until someone reviews the footage, usually days after the loss.
Read the case study
Building a Print-on-Demand Shopify Integration Platform
AI-Driven Storytelling Platform
EdTech Solutions for Inclusive Skill Development
The Art of Mindful Living – Mindfulness and Self-Mastery App
Club Wyndham – Vacation Ownership and Resort Booking App
Cueillette: Connecting Local Farms and Gardens for Fresh, Sustainable ProduceWe agree features, users, data and integrations, or review your existing Node.js code.
You receive Scope or code review report
We choose framework, database, hosting and whether serverless or containers fit best.
You receive Architecture notes
Endpoints and features ship in short iterations with tests and code review.
You receive Working services on staging
We load-test with k6 and check security before launch.
You receive Test reports
Deployment through CI to your cloud, with monitoring and alerts.
You receive Live services and runbooks
Upgrades, fixes and new features on a monthly plan or with a dedicated developer.
You receive Support plan
Tech stack
Pipelines and orchestration
Databases
Backend and APIs
Languages
Cloud and DevOps
Testing and quality
Other tools
Engagement
A Node.js back end built against an agreed scope, timeline and price.
Developers who work on your product full time or part time, inside your process and tools.
Monitoring, fixes, updates and small improvements after launch, on a monthly plan.
It depends on the number of features and integrations, real-time needs, data volumes and whether we are building new or improving existing code. As a guide, a Node.js API for a web or mobile app usually costs $10,000 to $40,000, and a larger back end with real-time features and several integrations $40,000 to $120,000 or more (USD). A dedicated Node.js developer usually costs $20 to $60 per hour (USD).
NestJS for larger applications that benefit from a clear structure, dependency injection and built-in OpenAPI support. Express or Fastify for smaller, focused services. Fastify is quicker per request; Express has the widest set of middleware. We pick per project.
Yes. Its event-driven model handles many open connections well, which suits chat, notifications, live dashboards and collaborative tools. We scale real-time features across servers with Redis.
Serverless suits spiky or low traffic and event handlers, and can cut cost. Containers suit steady traffic, long-running connections and WebSockets. Many systems use both.
Yes. We move code to a current Node.js LTS release, update dependencies, add TypeScript gradually where useful and add tests around risky areas first.
When the system's size and team structure justify them. For most products, a well-structured single service is simpler and cheaper to run. We can split it later if needed.
Input validation on every endpoint, authentication with short-lived tokens, rate limiting, dependency scanning, secrets in a vault and checks against the OWASP Top 10.
Yes. You can hire dedicated Node.js developers full time or part time, with a first 15 days free trial. See our hire Node.js developers page.
A focused API often takes a few weeks. Larger back ends take a few months, depending on scope and integrations.
We start with a short discovery call under NDA if you need one. Send us your idea, any designs or documents, and the systems the work must connect to. We then share a written scope, timeline and estimate before any build work starts.
You own the code. We maintain and upgrade the back end after launch under a support plan.
Book a call with our team. We will review your plans or existing code and suggest an approach and budget.
