Node.js Development Company

Node.js Development Services Fast, Scalable Backends

Your one-stop Node.js partner for the backend that powers your product. We build fast, secure, scalable APIs and real-time services that stay reliable as your traffic grows.

Trusted by teams worldwide

Connexate Meshmedia Oaky Setia Haruman Wave Sugar

Full-Cycle Node.js Engineering, Backend to Cloud

From a single API to a full microservices platform. Six service lines cover every part of building a modern Node.js backend.

01

Custom Node.js Backends

  • Express, NestJS or Fastify
  • Clean, modular architecture
  • Auth, roles and permissions
  • Background jobs and queues
  • Built to scale from day one
Explore Backends
02

REST & GraphQL APIs

  • Well-designed, documented APIs
  • REST, GraphQL or both
  • Versioning and pagination
  • Rate limiting and caching
  • OpenAPI and SDKs
Explore APIs
03

Real-Time Apps

  • WebSockets and Socket.IO
  • Chat, presence and live data
  • Notifications and feeds
  • Collaborative features
  • Scales to many connections
Explore Real-Time
04

Microservices

  • Service decomposition
  • Event-driven with queues
  • gRPC and message brokers
  • Independent deploys
  • Observability built in
Explore Microservices
05

Cloud & DevOps

  • Docker and Kubernetes
  • CI/CD pipelines
  • Auto-scaling and load balancing
  • Monitoring and logging
  • AWS, GCP or Azure
Explore Cloud
06

Migration & Optimization

  • Legacy backend rewrites
  • Performance and query tuning
  • Cost and resource optimisation
  • Security hardening
  • Zero-downtime cutovers
Explore Optimization
Deep Capabilities

Production Backends, Not Just APIs

Six engineering disciplines behind every Node.js backend we ship, and the tools we use for each.

Node.js Engineering

Node.js Engineering

Clean, modular backends on Express, NestJS or Fastify, built for reliability and scale.

Node.jsNestJSExpressTypeScript
API Design

API Design

Well-structured, documented REST and GraphQL APIs with versioning, auth and caching.

RESTGraphQLOpenAPIgRPC
Real-Time & Streaming

Real-Time & Streaming

WebSockets, pub/sub and streaming for chat, live data and collaborative features.

Socket.IOWebSocketsKafkaRedis
Microservices

Microservices

Event-driven services with queues and brokers that deploy and scale independently.

MicroservicesRabbitMQgRPCEvents
Databases

Databases

SQL and NoSQL data layers with modelling, indexing and query optimisation.

PostgreSQLMongoDBPrismaRedis
DevOps & Scaling

DevOps & Scaling

Docker, Kubernetes, CI/CD and monitoring that keep services fast and always up.

DockerKubernetesCI/CDAWS
Free Architecture Review

Building a Backend? Get a Free Architecture Review.

A short call and a look at your requirements or current backend tells you exactly where it can scale better, and how we would design it. So your first dollar goes toward something solid.

Get Your Free Review

Free · No obligation · Delivered within 48 hours

Planning your project with Appther
Our Process

From Requirements to Production in Five Phases

A clear, low-risk process that keeps you in the loop at every step.

1
Week 1

Discovery

We map requirements, data and load, choose the architecture and agree a fixed quote.

2
Week 1–2

Design

API contracts, data models and infrastructure design before we build.

3
Week 2–8

Development

We build services in sprints with tests and demos the whole way.

4
Week 6–9

QA & Load Test

Automated tests, security checks and load testing before launch.

5
Ongoing

Deploy & Scale

CI/CD deploys, monitoring and a roadmap for scaling and new features.

Measurable Impact

Numbers From Shipped Backends

200+

Projects shipped

Backends and APIs launched for startups and enterprises worldwide.

99.9%

Uptime

Reliable infrastructure and monitoring keep services online at scale.

2x

Faster responses

Typical gains after our performance and query optimisation.

10K+

Requests / sec

Throughput our real-time backends handle in production.

Tech Stack

The Stack Behind Our Backends

Node.js Express NestJS TypeScript GraphQL PostgreSQL MongoDB Redis Socket.IO Docker Kubernetes AWS Kafka gRPC Prisma
Industries

Built for Your Vertical

Every bullet is something we've actually shipped, not a sales pitch.

Healthcare solutions
01

Healthcare & Fitness

HIPAA-ready products for patients, providers and wellness.

  • Booking and telehealth
  • Wearable integration
  • Secure patient records
Fintech solutions
02

Fintech & Banking

Secure, compliant products for payments and money movement.

  • Wallets and KYC flows
  • Biometric auth
  • Real-time transactions
Retail and eCommerce solutions
03

Retail & eCommerce

Commerce that converts and keeps customers coming back.

  • Catalog and checkout
  • Recommendations
  • Loyalty and campaigns
On-demand and logistics solutions
04

On-Demand & Logistics

Real-time products for delivery, dispatch and field teams.

  • Live tracking and routing
  • Driver and customer apps
  • In-app payments
EdTech solutions
05

EdTech & Learning

Engaging learning products for students and coaches.

  • Courses and quizzes
  • Live classes
  • Gamification
Real estate and PropTech solutions
06

Real Estate & PropTech

Property products for search, tours and lead capture.

  • Map search
  • Virtual tours
  • In-app enquiries
Client Voices

Trusted By Teams Who Ship

“Appther built our student competition app exactly the way we envisioned it: easy registration, smooth judging, and real-time results that keep participants engaged.”
Dionna Milem
Dionna MilemOwner · My BOB Team LLC
“Building a mental health app means every detail has to be handled with care, and Appther got that from day one. The product feels warm, simple, and genuinely helpful.”
Bob Singhal
Bob SinghalProfessor of Joy · Joyscore Inc
“Appther exceeded every expectation, on time and on budget, and the final product has been instrumental in scaling our business. A rare engineering partner.”
Johnathan Peffer
Johnathan PefferCEO · Bull's Eye Technologies Inc
“Implementing an ERP across our operations felt daunting at first, but Appther made the transition seamless. Every department now works off a single source of truth.”
Pushpender Kumar
Pushpender KumarGeneral Manager · AB Sugar Ltd
Latest Insights

Notes on Building Great Backends

Field notes from real builds. No hype, just what worked and what didn't.

All Articles
Free 30-Minute Backend Strategy Call

Great Products Run on Great Backends. Yours Starts Here.

Walk away from one call with the right architecture, a scalable data model, a realistic budget range and a delivery timeline. No pitch deck, no obligation.

Scope shortlist Budget range Delivery timeline
Book My Free Call
200+Projects delivered
4.8★Client rating
15+Countries served
99.9%Production uptime
FAQ

Questions We Hear Every Week

It depends on scope. A focused API starts in the low five figures, while microservices platforms run higher. You get a clear, fixed-price quote after a free scoping call, with no open-ended billing.
A focused API or backend usually ships in 4 to 8 weeks. Larger platforms take longer. We share a realistic timeline with milestones in your quote so you always know what comes next.
Yes. We build chat, live data, notifications and collaborative features with WebSockets and pub/sub, designed to scale to many concurrent connections.
Whatever fits. We often start with a well-structured modular monolith and split into microservices when scale or team size justifies it. We recommend the right call for your stage.
Yes. We audit your current backend, tune performance and queries, harden security and can migrate to a more scalable architecture with zero downtime.
Absolutely. You own 100% of the source code and infrastructure setup. We can also sign an NDA before any discovery conversation.
An Engineer Replies Within One Business Day

Let's Build Your Backend

Tell us what you're building. No sales pitch, just a straight answer on architecture, scope, timeline and cost.

Free 30-min strategy callScoping and honest, practical advice.
Fixed-price quoteDetailed scope and price after discovery, no surprises.
NDA on requestYour idea and code always stay yours.
Prefer to talk now?+91 99114 32288 · sales@appther.com

Book Your Free Strategy Call

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🔒 Your details are never shared. NDA available on request.