Scalable APIs, microservices, and real-time backends with Node.js.
Fremen Consulting builds Node.js backend systems — REST and GraphQL APIs, microservices, event-driven architecture with Kafka or RabbitMQ, and real-time applications with WebSockets for SaaS and enterprise products.
Problems we solve for businesses like yours
Single Node.js processes handling all traffic become CPU-bound under load, with no horizontal scaling strategy or stateless design for cloud deployment.
Older Node.js codebases with callback patterns, missing TypeScript, and no test coverage make every change risky and slow down feature delivery.
Event listener leaks, unclosed database connections, and unbounded caches cause OOM crashes that are difficult to reproduce and diagnose locally.
Solutions tailored to your industry and growth goals
Express, Fastify, or NestJS APIs with OpenAPI documentation, input validation, authentication middleware, and container-ready stateless architecture.
Kafka or RabbitMQ integration for async processing, event sourcing patterns, and decoupled microservice communication.
Memory profiling, graceful shutdown, health checks, structured logging, and APM integration with Datadog or New Relic.
Technologies and platforms we work with in this space
Measurable outcomes from projects in this space
Node.js and NestJS API platform supported a SaaS MVP through seed funding and first 500 paying users with 99.9% uptime.
Clear answers to common questions in this industry
We build REST and GraphQL APIs, microservices, real-time WebSocket applications, and event-driven backends with Node.js, TypeScript, NestJS, and Fastify.
NestJS for enterprise applications needing structure, dependency injection, and module organization. Fastify for high-performance APIs where raw speed matters. We recommend based on team size and complexity.
Yes. With stateless design, horizontal scaling behind load balancers, caching with Redis, and async processing with message queues, Node.js handles high-throughput production workloads at companies like Netflix and LinkedIn.
Yes. We incrementally migrate JavaScript codebases to TypeScript, adding types, refactoring callbacks to async/await, and establishing test coverage during migration.
API MVP takes six to ten weeks. Microservices platform with event-driven architecture typically takes twelve to twenty weeks.
Tell us about your business and goals. We will recommend the right approach for your industry, timeline, and budget.