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FIG 01 · Node.js Development

Node.js development services for fast, typed back ends

TypeScript APIs in NestJS, Express or Fastify, real-time features with WebSockets and MERN builds, run only on Node.js LTS releases, with lockfiles, audits and a patch window written into your scope.

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Two developers pair programming on a real-time chat app shown on a large monitor

FIG 02 · Quick answer

What are Node.js development services?

Node.js development services build server-side apps and APIs in JavaScript or TypeScript on the Node.js runtime. Elgrith builds typed APIs with NestJS, Express or Fastify, real-time features with WebSockets, and MERN apps, only on Node.js LTS releases, and migrates older apps off end-of-life versions such as Node 18 and 20.

Production runs only on Active or Maintenance LTS
LTS
Projects delivered since 2015
1,000+
Clients across the USA, UK and India
250+
Your code, repository and IP
100%

FIG 03 · Why it matters

Node.js is everywhere. Old Node.js versions are too.

From the 2025 Stack Overflow Developer Survey, GitHub Octoverse 2025 and nodejs.org, read on 23 Oct 2026.

FIG 04 · Decide

Express, NestJS or Fastify?

The framework sets how your back end is organised for years. We choose per project and write the reason into your scope.

Express vs NestJS vs Fastify: which Node.js framework?
ExpressNestJSFastify
ShapeMinimal and unopinionatedStructured: modules, controllers, providersMinimal, built for speed
Best forSmall APIs and teams that want full controlLarger APIs and teams that need a shared structureHigh-throughput APIs and services
TypeScriptSupported; you add the structureTypeScript-firstSupported, with typed schemas
ValidationAdd a libraryBuilt-in pipes and DTOsJSON Schema built in
Watch forCodebases drift without conventionsMore boilerplate for tiny servicesSmaller plugin ecosystem than Express

Express was used by 19.9% of 2025 Stack Overflow survey respondents. NestJS can run on Express or Fastify underneath, so the choice is not all-or-nothing.

FIG 05 · What you get

Node.js development services

Node.js web development for SaaS products, mobile apps and businesses that need fast APIs, real-time features or a lot of integrations.

The same real-time chat app on a laptop and a phone, with one blue message bubble
Node.js Development · built in-house

01

REST and GraphQL APIs

Typed REST or GraphQL APIs with validation, auth, rate limits and generated docs, or tRPC when the front end is TypeScript too.

02

Real-time apps

Chat, live dashboards, notifications and collaboration built on WebSockets or Socket.IO, with Redis to scale across servers.

03

Microservices and serverless

Services split only where it pays, deployed as containers or AWS Lambda functions, with queues between them.

04

Back ends for React and React Native

One TypeScript API for your web and mobile apps, sharing types with the front end so changes break at build time, not in production.

05

Integrations and webhooks

Stripe, CRM, ERP and messaging APIs, with webhook handlers that retry safely and never process an event twice.

06

Background jobs

BullMQ queues on Redis for emails, imports, reports and AI calls, so slow work never blocks a request.

07

JavaScript to TypeScript

Existing JavaScript back ends moved to TypeScript file by file, with strict mode turned on as the code allows.

08

Node.js version upgrades

Apps on Node 18 or 20 moved to a current LTS release, with dependencies updated and tests run at each step.

Deliverables

11

deliverables, in writing

Included in every build, written into your fixed quote before work starts.

FIG 06 · Flagship build

Proof: a product we designed and engineered

Kenerate AI is our flagship build, an all-in-one AI studio. It shows the back-end engineering we bring to Node.js work: many providers behind one product, one login and one credit balance, used inside other AI apps through MCP and CLI.

  • 200+ AI models behind one app, one login and one credit balance
  • MCP & CLI: Kenerate works inside Claude, ChatGPT, Cursor and 19+ AI apps
  • 23+ studios and tools, with up to 4K output
  • 1,000+ projects for 250+ clients since 2015
See the case studyVisit kenerateai.com (opens in a new tab)
Kenerate AI agent page: Kenerate inside Claude, ChatGPT and Cursor through MCP and CLI

Agent: Kenerate inside Claude, ChatGPT and Cursor

AI models in one app
200+
Studios and tools
23+
Maximum output
4K
Guides
500+

FIG 07 · Stack

Node.js development company: our stack

A short, boring list on purpose. Every tool here is widely used, documented and easy for the next team to pick up.

06principles

  • TypeScript, always

    Strict TypeScript for the API, shared types with the front end and no untyped “any” in core code.

  • NestJS, Express or Fastify

    NestJS for larger APIs, Express or Fastify for small, fast services.

  • Prisma or Drizzle

    Typed database access and migrations on PostgreSQL, or MongoDB when the data really is documents.

  • Redis and BullMQ

    Caching, rate limits, sessions and job queues on Redis.

  • Docker and serverless

    Container images for servers, or AWS Lambda for spiky, event-driven work.

  • CI/CD and hosting

    Pipelines, environments and monitoring set up with the app.

    DevOps consulting

FIG 08 · Full stack

MERN and MEAN stack development

MERN is MongoDB, Express, React and Node.js; MEAN swaps React for Angular. Both put JavaScript or TypeScript on every layer.

06principles

  • MERN stack development company

    MongoDB, Express, React and Node.js, in TypeScript, for dashboards, marketplaces and SaaS.

  • MEAN stack development company

    The same back end with an Angular front end, often for enterprise teams already on Angular.

  • MongoDB or PostgreSQL?

    We swap MongoDB for PostgreSQL when the data is relational. The “M” is a choice, not a rule.

  • React and Next.js front ends

    Server-rendered React for SEO pages and app screens.

    React development

  • React Native apps

    Mobile apps on the same TypeScript API.

    React Native development

  • SaaS products

    Multi-tenant SaaS on Node.js with billing and roles.

    SaaS development

FIG 09 · Security

Security and dependencies

Most Node.js risk sits in the dependency tree. We lock it, audit it and patch it on a schedule you can see.

06principles

  • Lockfiles, committed

    npm or pnpm lockfiles in the repository, and installs in CI that fail if the lockfile is out of date.

  • Audits on every build

    npm audit or pnpm audit in CI, with flagged packages fixed, replaced or documented.

  • SBOM per release

    A software bill of materials for each release, so you know exactly what is running.

  • Security patch window

    Node.js and package security releases applied within a window agreed in your written scope.

  • Secrets and auth

    Secrets out of the code, short-lived tokens and least-privilege access to databases and cloud accounts.

  • Monitoring

    Error tracking, logs and uptime alerts from launch day, shared with your team.

FIG 10 · Hire

Hire Node.js developers

Dedicated Node.js developers who work in your repository, your sprint and your code review rules, managed from our New Delhi HQ.

06principles

  • Dedicated Node.js developer

    A full-time TypeScript developer on your API or full-stack product.

  • Team extension

    Back-end, front-end and QA engineers added for a release or a backlog.

  • Fixed-scope project

    A defined API, app or upgrade for one fixed quote, with weekly demos.

  • How dedicated teams work

    Interviews, onboarding, replacements and hand-over.

    Hire dedicated developers

  • APIs and integrations

    Third-party APIs connected to your Node.js back end.

    API integration

  • Headless CMS back ends

    Strapi and Payload are Node.js CMSs; we build and extend them.

    Headless CMS development

Full product

Need the whole web app, not just the API?

Our web app team designs and builds the front end, the Node.js back end and the deployment as one project, with one written scope and one fixed quote.

Web app development

FIG 11 · Process · 6 steps

Type it, test it, keep it on LTS

A fixed written quote after a free call, sprints with weekly demos, and an LTS upgrade plan so your app never runs on an end-of-life Node.js. You own the code and IP.

Book a call
  1. Step 01

    Free call

    Tell us what you are building or what is breaking. We ask about users, data, integrations and deadlines, not just the framework.

  2. Step 02

    Code or idea review

    For a new build: users, real-time needs, integrations and the right framework. For an existing app: Node.js version, dependencies, test coverage and what breaks under load.

  3. Step 03

    Fixed written quote

    A written scope, a fixed quote and the plan for versions, hosting and hand-over, before any work starts.

  4. Step 04

    Sprints with weekly demos

    Sprints in your repository, with strict TypeScript, tests in CI, readable pull requests and a demo every week.

  5. Step 05

    Launch

    A planned release to containers or serverless, with health checks, environment config and a rollback ready.

  6. Step 06

    Support and upgrades

    Security releases applied in a patch window agreed in your written scope, plus planned upgrades before your versions lose support.

FIG 12 · What you get

Everything included

Written into your fixed quote, so you know exactly what you are paying for before work starts.

11items

  • Written scope and fixed quote
  • Framework decision, in writing
  • TypeScript API or app in your repository
  • Committed lockfile and CI audits
  • SBOM per release
  • Tests in CI
  • API docs for front-end and mobile teams
  • Docker images or serverless config
  • Node.js LTS upgrade calendar
  • Runbooks and hand-over notes
  • IP assignment: code and data are yours

FIG 13 · Tech & tools

The tools behind the work

Proven, well-supported tools, chosen for your project and set up in accounts your business owns.

  • Node.js 22 “Jod”
  • Node.js 24 “Krypton”
  • TypeScript
  • npm
  • pnpm
  • NestJS
  • Express
  • Fastify
  • Prisma
  • Drizzle
  • PostgreSQL
  • MongoDB
  • Redis
  • BullMQ
  • WebSockets
  • Socket.IO
  • GraphQL
  • tRPC
  • Next.js
  • React
  • React Native
  • AWS Lambda
  • Docker

FIG 14 · Who it’s for

Node.js work for products that need speed, real time or many integrations.

A Node.js development agency that writes TypeScript, runs LTS and hands the code over.

3 audiences

SaaS and apps

One typed API for web and mobile.

SaaS products and mobile apps with a NestJS or Fastify API, shared types and a React or React Native front end.

  • TypeScript end to end
  • Shared types with the front end
  • Background jobs on BullMQ
  • API docs from the code

FIG 15 · Working with us from the USA and UK

Built in New Delhi. Run on your hours.

Every project gets a point of contact in New York or London and an engineering team in New Delhi. Here is how today’s working days line up, live.

Three ways to work together

  1. 01

    Fixed-scope project

    A written scope, one fixed price and a dated plan. Suits websites, apps and MVPs.

  2. 02

    Dedicated team

    Designers and engineers on your roadmap every month, billed monthly.

  3. 03

    White label

    For US and UK agencies: our work, your brand, unbranded deliverables.

Every engagement

  • Fixed quote in USD, GBP or INR after a free 30-minute call
  • NDA before discovery. You own all code, designs and content
  • A working demo every sprint, not status slides
  • Reply within one business day, calls inside your hours
Book a call

Calls on ET or UK hours

FIG 16 · LTS

Node.js release lines and status

“Production applications should only use Active LTS or Maintenance LTS releases.” This is where each line stands today.

Node.js release lines and status
Node.jsCodenameFirst releasedStatus, 23 Oct 2026What we do
26–5 May 2026Current (not yet LTS)Test against it; production once it reaches LTS
24Krypton6 May 2025LTSDefault for new builds
22Jod24 Apr 2024LTSFine for existing apps; plan the move to 24
20Iron17 Apr 2023End of lifeMigrate now
18Hydrogen18 Apr 2022End of life (2025)Migrate now

From nodejs.org’s previous releases page, read 23 Oct 2026. Node.js has announced that from Node.js 27 the release cycle will be annual.

FIG 17 · Compare

Node.js vs Python vs Laravel: which back end?

Node.js vs Python vs Laravel: which back end?
Node.js (TypeScript)Python (Django, FastAPI)Laravel (PHP)
Best forReal-time apps, APIs and JavaScript-only teamsData-heavy apps, AI features, automationWeb apps, SaaS and admin-heavy products
One language front to backYes, with React or React NativeNoNo (unless Livewire)
Built inVery little: you pick a frameworkDjango: ORM, admin, authORM, queues, auth, mail
Support windowAbout 30 months per LTS linePython: 5 years per version2 years of security fixes per major
Our pageYou are herePython developmentLaravel development

FAQ

Frequently asked questions

Straight answers about Node.js Development with Elgrith.

Node.js runs JavaScript and TypeScript on the server. Teams use it for APIs, real-time features such as chat and live dashboards, back ends for React and React Native apps, integrations and webhooks, and serverless functions. It was the most used web technology in the 2025 Stack Overflow survey, at 48.7% of respondents.

FIG 18 · Related

Keep exploring

All services

Free 30-minute call

Ship a typed back end.

Tell us about the API, real-time feature or upgrade you need. After a free call you get a written scope, a framework recommendation and a fixed quote.

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