Hire Node.js developers who build back ends that stay fast under load

Usually within 48 hours. After a short call about your product, stack and team, we introduce a senior Node.js developer who matches what you need. If you like them, they can start right away, often the same week. The first two weeks are a risk-free trial, so if the fit isn't right we replace the developer or you walk away. Most clients see their first working endpoints or fixes within one to two weeks.

It depends on what you need built. The main drivers are scope (how many features and endpoints), the number of integrations, real-time or heavy background processing, security and compliance needs, your timeline and how many developers you want on the team. Taking over messy existing code also adds discovery time. We don't publish rates because every project is different. Book a free consultation, and after a short call we send you a free, fixed quote with a clear timeline.

For a small service or an existing Express codebase, Express is fine and very familiar to most developers. For a larger product with several developers, NestJS gives you modules, dependency injection and conventions that keep the code organised as it grows. Fastify is a good choice when raw performance and built-in schema validation matter. We look at your team, your plans and your current code, then recommend one and explain why. We don't push a framework for its own sake.

Yes, for most products. Node.js handles large numbers of concurrent connections very efficiently, which is why it is widely used for APIs and real-time apps. It is weaker at heavy CPU work such as video encoding or big number crunching on the main thread. We handle that with worker threads, background jobs or a separate service in a better-suited language. In practice, most performance problems come from database queries and missing caching, which we fix first.

We write TypeScript with strict settings by default. It catches whole classes of bugs before the code runs, makes refactoring safer and lets your front end and back end share types for API requests and responses. If you have an existing JavaScript codebase, we can keep working in it, or migrate it to TypeScript gradually, one file or module at a time, while still shipping features.

Yes. We build chat, notifications, presence indicators, live dashboards and collaborative features using Socket.IO, the ws library or Server-Sent Events, depending on what the feature needs. We design them to work across several servers with Redis, handle reconnects and missed messages, and secure every connection with the same authentication as your API. We also load test them so you know how many concurrent users your setup can handle.

Yes, this is common work for us. We start with a short audit: we run the project, check the Node.js and package versions, look at error logs and find the riskiest areas. Then we add tests around the parts we are about to change, fix crashes, leaks and slow endpoints, and upgrade outdated dependencies. You get a clear list of what we found and what we recommend, in priority order.

Most early-stage products are better off with a well-structured modular monolith: one deployable app with clean internal boundaries. It is faster to build, cheaper to run and easier to debug. Microservices make sense when separate teams need to deploy independently or parts of the system have very different scaling needs. We design the monolith so modules can be split out later without a rewrite, if and when that day comes.

We stay close after launch to watch errors, response times and job queues, and fix anything that comes up quickly. After that you can keep us on for new features, Node.js upgrades, security patches and performance work, scaling the team up or down monthly. Or we hand over to your own developers with documentation, runbooks and a walkthrough. Either way, the code is in your repository and fully yours.