Technology
Node.js Backend & API Development
We build Node.js backends and APIs for SaaS platforms and system integrations - Express for straightforward services, NestJS when a larger production system needs more structure than Express gives you by default.
What we build
What We Actually Build With Node.js
- REST APIs and backend services on Node.js/Express for new SaaS products
- NestJS-based backends for larger systems that need real architectural structure
- Integration layers connecting third-party APIs, AI services, and existing business systems
- Node.js services paired with a Python FastAPI layer for AI/ML-heavy workloads
Where it fits
Services That Use Node.js
API Integration Services
Node.js integration layers connecting the systems a business already depends on.
SaaS Product Development
Node.js/Express or NestJS backends for new multi-tenant SaaS products.
AI Automation / AI-Powered Applications
Node.js services wiring AI capabilities (OpenAI API) into existing workflows.
Technical depth
Node.js Work We Actually Do
Express API services
Lightweight, well-structured REST APIs for products where Express's simplicity is the right fit.
NestJS for larger systems
Module-based NestJS architecture for backends that have outgrown a flat Express app - used on our AxiomFin fund administration platform.
Third-party and AI API integration
Wiring OpenAI and other external APIs into a Node.js backend as part of the product, not a bolted-on feature.
Node.js + Python service composition
Node.js handling the API/application layer while a Python FastAPI service handles ML or data-processing workloads it's better suited for.
Redis-backed caching and session handling
Redis paired with Node.js backends for caching and state that doesn't belong in the primary database.
How we approach it
Migration & Implementation Patterns
Design the API surface around the integrations and consumers it actually needs to support.
Choose Express or NestJS based on the system's real complexity, not by default.
Separate concerns - application logic, integration logic, and any ML/data-processing workload - into services suited to each.
Build in error handling and observability for integration points, since third-party APIs are the most common failure point.
Load-test integration and API layers before launch, not just the primary user-facing paths.
Proof
See Node.js Work
OmniPulse
A real-time CX intelligence platform with a Node.js/Express backend paired with a Python FastAPI service layer, deployed on AWS ECS.
View Case StudyLendiFlow
An AI-powered real estate loan management SaaS built on Node.js/Express with the OpenAI API integrated directly into the workflow.
View Case StudyFAQ
Frequently Asked Questions About Node.js
Get in touch
Discuss Integration Requirements
Tell us what you're working with and we'll give you a straight read on what it would take.