NestJS development services company
GegoSoft builds scalable NestJS backends for SaaS products, mobile and web apps, real-time platforms and microservices. TypeScript end to end, clean module architecture and tested code your team can maintain long after launch.
- Language
- TypeScript, strict mode
- APIs
- REST, GraphQL, WebSockets
- Data
- PostgreSQL, MySQL, MongoDB, Redis
- Delivery
- Docker, CI/CD, OpenAPI docs
- Engagement
- Fixed scope or dedicated developers
Our NestJS development services
NestJS is a Node.js framework for building server-side applications in TypeScript. It organises code into modules with dependency injection, which keeps large backends readable and testable. We use it to build everything from a single API to a full platform of services.
Custom NestJS application development
Backends designed around your business domain, from data model to deployment, with module boundaries that make room for future features.
- Domain and module design
- Role-based access control
- Admin and reporting APIs
NestJS API development
REST and GraphQL APIs with validated inputs, consistent error responses and documentation generated straight from the code.
- Versioned REST endpoints with Swagger/OpenAPI
- GraphQL schemas and resolvers
- Rate limiting and API keys
SaaS backend development
Multi-tenant platforms that keep each customer's data isolated and handle subscriptions, usage limits and onboarding.
- Shared-schema or per-tenant database designs
- Stripe, Razorpay and subscription billing
- Tenant-aware auth and audit logs
NestJS microservices development
Systems split into independent services that scale and deploy separately, communicating through events and message brokers.
- Redis, RabbitMQ, NATS and Kafka transports
- Event-driven and CQRS patterns
- API gateway and service discovery
Real-time application development
Live features built on WebSocket gateways: chat, notifications, dashboards, tracking and collaborative screens.
- Socket.IO and native WebSocket gateways
- Presence, rooms and broadcast
- Horizontal scaling with Redis adapters
Backends for mobile and web apps
APIs for React, Next.js, Angular, Flutter and React Native apps, with shared TypeScript types where the frontend allows it.
- JWT, OAuth2 and social login
- Push notifications and file uploads
- Offline sync endpoints
Third-party integrations
Connecting your NestJS application to the services your business already depends on.
- Payment gateways, SMS, email and WhatsApp APIs
- CRM, ERP and accounting systems
- AI model APIs and webhooks
Migration and modernisation
Moving legacy Node.js, Express or monolithic applications to a structured NestJS codebase, step by step and without downtime.
- Codebase assessment and migration plan
- Incremental route-by-route migration
- JavaScript to TypeScript conversion
Performance optimisation and audits
Finding why an existing NestJS application is slow, fragile or expensive to run, and fixing it.
- Query, caching and queue tuning
- Fastify adapter and load testing
- Security and dependency review
Support, maintenance and upgrades
Ongoing care for live NestJS applications so they stay secure, current and fast.
- NestJS and Node.js version upgrades
- Monitoring, bug fixes and patches
- Feature enhancements on retainer
What businesses build with NestJS
NestJS fits any product where the backend needs to handle many users at once, stay responsive and grow without becoming hard to change.
- HealthcarePatient portals, appointment and teleconsultation backends, and secure integrations with clinical systems.
- EducationLearning platforms, live classes, exam engines and school management integrations.
- FintechPayment flows, wallets, trading dashboards and real-time price feeds.
- eCommerceHeadless commerce APIs, order processing, inventory sync and marketplace backends.
- LogisticsLive tracking, dispatch, route updates and driver apps.
- B2B SaaSWorkflow tools, CRMs, analytics dashboards and AI-powered products.
Our NestJS technology stack
We pick tools per project, but these are the ones our team works with most.
- Core
- NestJS, Node.js LTS, TypeScript, Express and Fastify adapters
- Databases and ORMs
- PostgreSQL, MySQL, MongoDB, Prisma, TypeORM, Mongoose
- Caching and queues
- Redis, BullMQ, RabbitMQ, Kafka, NATS
- APIs
- REST, GraphQL (Apollo), Swagger/OpenAPI, Socket.IO
- Auth and security
- Passport, JWT, OAuth2, SSO, Helmet, throttling
- Testing
- Jest, Supertest, end-to-end test suites
- DevOps
- Docker, GitHub Actions, GitLab CI, PM2, Nginx
- Cloud
- AWS, DigitalOcean, Google Cloud, Azure
Why choose GegoSoft as your NestJS development company
Architecture before code
Module boundaries, data models and API contracts are agreed first, so the codebase stays clean as features pile up.
AI-assisted delivery
Our engineers use Claude Code every day. NestJS conventions keep AI-generated code consistent, and every change still goes through human review.
Tested from the first commit
Unit and end-to-end tests ship with each feature, which keeps releases predictable.
Full-stack team
The same team can build the frontend and mobile apps, so the API is designed for the screens that use it.
You own the code
Source code, repositories, documentation and deployment scripts are yours from day one.
Clients across time zones
We work with clients in India, the USA, Australia, Europe and the UAE, with planned overlap hours for calls.
Why NestJS and not plain Express? NestJS runs on Express, but adds modules, dependency injection, validation and testing tools as standard. Every project follows the same structure, which makes it faster to onboard developers and cheaper to maintain. For a tiny single-purpose service, we will still suggest plain Express.
Already on Laravel? Our team also builds in Laravel, and NestJS's structure feels familiar to Laravel developers. If you have a working Laravel application, we can add NestJS services beside it for real-time or high-traffic features instead of rewriting it.
Our NestJS development process
The same sequence applies whether we are building a new backend or extending an existing one.
Discovery
Requirements, users, integrations and constraints, turned into a module map and a phased plan.
Contracts first
OpenAPI or GraphQL schemas agreed with the frontend team before handlers are written.
Build in slices
Each feature ships end to end with tests, in short sprints with demos.
Harden
Security review, rate limiting, logging, monitoring and load testing on realistic data.
Launch and support
Docker deployment, CI/CD, documentation, handover and ongoing maintenance.
Ways to work with us
Fixed-scope project
A defined backend or MVP delivered against an agreed scope, timeline and price.
Best for new products with clear requirementsHire dedicated NestJS developers
NestJS developers who work as part of your team, following your processes and tools, on a monthly basis.
Best for ongoing roadmapsAudit and support retainer
A code review of your existing NestJS application, followed by fixes, upgrades and monthly support.
Best for live applications that need careNestJS development FAQs
What does a NestJS development company do?
A NestJS development company designs, builds and maintains server-side applications using the NestJS framework: APIs, SaaS backends, microservices and real-time systems, along with testing, deployment and ongoing support.
What is NestJS used for?
NestJS is used to build backends in Node.js and TypeScript, including REST and GraphQL APIs, multi-tenant SaaS platforms, WebSocket-based real-time apps and microservices that communicate through message brokers.
How much does NestJS development cost?
Cost depends on scope, integrations and the engagement model. A focused API costs far less than a multi-tenant SaaS platform. Share your requirements and we will send a phased estimate.
How long does it take to build a NestJS backend?
It depends on the number of modules and integrations. We usually plan an MVP first so a working version reaches users early, then build further phases on top of it.
Can I hire dedicated NestJS developers from GegoSoft?
Yes. You can engage NestJS developers on a monthly basis who work within your team, tools and sprint process.
Can you take over and improve an existing NestJS project?
Yes. We start with a code audit covering structure, tests, security and performance, then agree a plan to stabilise the application before adding new features.
Is NestJS better than Express?
NestJS runs on Express and adds a standard architecture with modules, dependency injection and built-in testing tools. For applications that will grow or be maintained by a team, that structure saves time. For very small services, plain Express is often enough.
Which databases do you use with NestJS?
PostgreSQL and MySQL with Prisma or TypeORM, MongoDB with Mongoose, and Redis for caching and queues. The choice depends on your data model and scale.
Related services
Planning a NestJS backend?
Tell us what you are building. We will reply with an architecture outline, a phased plan and an estimate.
Or message us on WhatsApp: +91 91505 18408