Node.js Development ServicesFast, Scalable Backend Engineering for Production Applications

Express.js is minimal and unopinionated, providing HTTP routing and middleware composition with maximum flexibility. NestJS is structured and opinionated, adding dependency injection, decorators, modules, guards, interceptors, and auto-generated Swagger documentation. Express is better for lighter services and teams preferring flexibility. NestJS is better for larger enterprise backends where structure, testability, and long-term maintainability are priorities. Infynno uses both and recommends based on your specific application's size and team scale.

Yes. Infynno's Node.js developers are proficient with PostgreSQL (Prisma, Drizzle, raw pg driver) and MySQL (Sequelize, mysql2), including schema design, query optimization, index strategy, connection pool tuning, and migration management. The assumption that Node.js always means MongoDB is incorrect - relational databases are fully supported.

India has a strong pool of experienced Node.js developers with production API experience, strong English communication, and significantly lower rates than UK, USA, or Australian equivalents. Infynno's Node.js developers have shipped enterprise-grade backends, including a platform managing 8 million+ compliance notices with microservices architecture on AWS.

A mid-level Node.js developer handles REST API development, JWT authentication, database integration, Redis caching, basic job queuing, and AWS fundamentals. A senior Node.js developer brings architecture design, NestJS enterprise patterns, performance profiling, horizontal scaling strategy, microservices design, GraphQL, PostgreSQL advanced patterns, and technical leadership.

Yes. Real-time application development is a core Node.js service. Infynno builds Socket.io applications with room management, connection authentication, Redis Adapter for horizontal scaling across multiple Node.js instances, and reliable reconnection handling - for chat systems, live dashboards, collaborative tools, and notification systems.

Yes. Node.js performance optimization is a specific service. Infynno profiles the event loop, identifies blocking code, analyzes heap snapshots for memory leaks, audits database queries for N+1 issues and missing indexes, reviews connection pool configuration, and implements caching and queue-based solutions - with before and after metrics to demonstrate improvement.

Yes. Infynno executes backend migrations from PHP/Laravel, Python/Django, and Java Spring to Node.js (Express or NestJS) using the strangler fig pattern to keep the existing system live during migration. The new Node.js API matches the existing endpoint contract, enabling gradual traffic cutover without frontend changes.

Yes. TypeScript is the default for all Node.js development at Infynno - typed controllers, typed service interfaces, typed Prisma/Sequelize models, typed environment variables, and typed request/response objects throughout.

Yes. A Non-Disclosure Agreement is signed before any project context, codebase review, or architecture discussion begins - for every engagement, without exception.