Node.js development services

A Node.js development company with 14+ years in custom software, 70% senior engineers, and ISO 27001 certification. We pair a React front end with a Node backend, so one team owns the whole product.

Real-time apps and APIs
Microservices
Full-stack JavaScript
AI backends
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Our Node.js development services

Match your need to a service below. APIs, microservices, and real-time systems are the core of what we build in Node.

API development and integration

REST and GraphQL APIs that wire your product to payment, CRM, ERP, and third-party services.

Microservices development

We split a system into independent Node services that scale, deploy, and fail on their own, so one bottleneck never stops the product.

Plugin and module development

Node modules and plugins that extend your existing platform without a rewrite.

Migration to Node.js

We move legacy backends to Node and TypeScript in stages, keeping the live system running while we cut over service by service.

Maintenance and support

Ongoing care for an existing Node application: dependency upgrades, performance work, security patches, and on-call support.

Node.js consulting

We review your architecture, stack, and roadmap, then tell you where Node fits and where it does not.

Dedicated development team

A Node team of business analysts, developers, and QA that works as an extension of your in-house staff.

Powerful Node.js solutions we build

These are the application types Node is genuinely built for. Real-time, streaming, and high-concurrency work is Node’s honest sweet spot.

Complex single-page applications

Data-heavy SPAs with a Node backend serving a React or Angular front end from one JavaScript codebase.

IoT applications

IoT applications

Device fleets and dashboards that ingest and react to sensor data as it arrives.

Real-time collaboration tools

Real-time collaboration tools

Shared editors, whiteboards, and workspaces where many users act on the same data at once.

Streaming applications

Streaming applications

Audio, video, and event streams are pushed to large audiences with low latency.

Microservices platforms

Microservices platforms

Distributed systems where each service scales and ships on its own schedule.

ERP systems

ERP systems

Operational backbones that tie finance, inventory, and HR into one data model.

Social platforms

Social platforms

Feeds, messaging, and notifications that stay live for thousands of concurrent users.

Real-time chat

Real-time chat

Messaging built on WebSockets, with presence, history, and delivery state.

How we apply Node.js in industries

We have shipped Node products across regulated and high-traffic industries. A few were the fit is strongest:

Name your niche

  • We map your domain rules into the backend, not around them
  • Real-time data flows wherever your product moves information
  • Integrations with the tools and systems your industry already runs on
  • Compliance and access controls scoped to your regulatory context
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Modern Node in 2026

Node in 2026 is not the Node of 2019. We pick Node when these strengths match the product:

Non-blocking-I-O-and-concurrency

Non-blocking I/O and concurrency

One Node process handles thousands of simultaneous connections without a thread per request, which is why it fits real-time and high-traffic APIs.

npm ecosystem

npm ecosystem

The largest package registry in software means most building blocks already exist, so we build features instead of plumbing.

V8 performance

V8 performance

Node runs on Google’s V8 engine, the same one that powers Chrome, so compute-bound request handling stays fast without you paying for extra servers to keep up.

Scalability and microservices

Scalability and microservices

Node’s lightweight runtime makes it cheap to run many small services and scale the busy ones independently.

Full-stack JavaScript

Full-stack JavaScript

One language across the React front end and the Node backend lets a single team own the product and share code between layers.

MVP speed

MVP speed

A rich ecosystem and one shared language get a working product in front of users faster, which matters most for startups.

Node.js: the engine behind AI products

Where the model thinks, and the front end shows it, Node runs it.

Node.js is the engine behind AI products. It calls the models, streams responses token by token (its non-blocking I/O is built for exactly this), runs retrieval (RAG) and tool-calling, hosts autonomous agents, and exposes your tools as MCP servers, all in the same TypeScript as your front end. In 2026, TypeScript passed Python in usage, and the JavaScript AI stack is production-ready. You no longer need a separate Python service for application-layer AI.

 

We build with the Vercel AI SDK, the leading TypeScript AI toolkit, with one provider-agnostic interface across OpenAI, Anthropic, and Gemini; its Core runs server-side on Node. We use LangChain.js for orchestration and RAG, and Mastra for production agents and workflows, wired to whichever models you run. React renders the AI experience and Node runs it, which together make a full-stack JavaScript AI product.

 

The probabilistic parts, agents, retrieval, and tool-calling are governed by our Agentic Development Lifecycle (ADLC), including evaluation and tool-execution approval. The AI engine ships as a governed product you can run in production.

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When to choose Node

We pick the right tool, not the one we sell. Node is the right call for I/O-bound, real-time, and full-stack JavaScript products, and now for AI application backends. For CPU-heavy work, we will tell you when Go fits better; for ML training, Python.

Choose When it fits Notes

Node.js

I/O-bound APIs, real-time (chat, streaming, collaboration), microservices, full-stack JS, AI app backends

Largest package ecosystem; same language as a React front end

Go

CPU-bound or very high-concurrency systems infrastructure, low-latency services

Compiled performance; Node’s honest weak spot is CPU-heavy work

Python

Data science, ML training, heavy numerical and scientific work

For app-layer AI (agents, RAG, streaming), Node and TypeScript are now fully viable

Deno / Bun

Greenfield needs security-by-default (Deno) or fast cold starts and maximum performance (Bun)

Web-standard APIs and transferable skills; Node stays the enterprise default for ecosystem and LTS

Tech stack we’ve mastered

The real, current Node stack we build on, confirmed by Engineering.

Runtime and frameworks
Language
Node AI stack
Front end
Databases

Advanced tech we use with Node

Node also anchors the adjacent capabilities we build alongside core backend work.

IoT device managementIoT development
AI agents and tool-callingAI development
Big-Data-and-machine-learningBig data development

IoT development

Node handles real-time data, device connectivity, and thousands of concurrent connections for IoT ecosystems: smart cities, industrial automation, healthcare monitoring, fleet management, and predictive maintenance.

AI development

We build AI features on the JavaScript and TypeScript stack: Vercel AI SDK, LangChain.js, and Mastra, running on the same Node backend that serves your product. The AI engine section above covers how we ship AI on Node under the ADLC governance lifecycle.

Big data development

For large-scale data streams, Node drives data engineering, analytics, and dashboards: charts and graphs that make the numbers readable.

Cooperation models we offer

Pick the engagement shape that fits how you want to work.

Software development outsourcing

We own delivery end to end, from business analysis to QA, on a T&M-with-Cap basis so the budget stays predictable.

Staff augmentation

We add senior Node engineers to your existing team, managed by you, for as long as you need the capacity.

Dedicated team

We stand up a full Node team that works only on your product and scales up or down as the roadmap changes.

Why SumatoSoft for Node

One team that owns the whole product. We deliver full-cycle: business analysis, design, development, and QA, with a React front end and a Node backend from the same engineers. When a project needs more than Node, we also build in Java, Ruby on Rails, and Python.

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Expertise

350+ projects delivered. 14+ years in custom software. 70% senior engineers.
Standards-01

Security

We hold ISO 27001 certification and build access controls, audit logging, and data protection into the architecture.
Standards-01

Guarantee provided

We provide a long-term guarantee on the software we develop.
Standards-01

Scalability

We make our software scalable for future changes – new features, users, workload.

Awards & Recognitions

SumatoSoft has been recognized by the leading analytics agencies from all over the world. Our properly set and transparent processes allow us to provide software development services that deliver value, not just software.
techreviewer.co 2026 — SumatoSoft listed among Top Software Development Companies
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FAQ

Is Node.js good for web development?

Yes. Node.js is a strong fit for web backends that handle many simultaneous connections, real-time features, and API-heavy products. Its non-blocking runtime makes it efficient for I/O-bound work, which covers most web applications.

How much does a Node.js project cost?

A Node.js project typically runs from $10K to $50K and up, depending on complexity. A small MVP or integration sits at the low end; an enterprise platform with microservices or an AI backend sits above $50K.

What are the benefits of outsourcing Node.js development?

Outsourcing gives you a senior Node team without the time and cost of hiring one. You get business analysis, development, and QA from one vendor, and you scale the team up or down as the roadmap changes.

Do you provide post-launch maintenance?

Yes. We keep the application healthy after launch: dependency upgrades, performance tuning, security patches, and on-call support, on a maintenance agreement sized to your product.

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    If you have any questions, email us info@sumatosoft.com

      Please be informed that when you click the Send button Sumatosoft will process your personal data in accordance with our Privacy notice for the purpose of providing you with appropriate information.

      Vlad Fedortsov (Account Manager)
      Vlad Fedortsov
      Account Manager
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