API design
REST contracts with consistent error models, versioning, and authentication so clients do not have to reverse-engineer the backend.
Systems
APIs and services with clear contracts.
We build backends that other systems can depend on — typed services, documented APIs, and integration layers that stay coherent as the product grows.
Backend & API Engineering
CloudCubit designs and implements server-side systems in Node.js, NestJS, Python, and FastAPI. Engagements often include REST APIs, service decomposition, and API gateway patterns for internal and partner consumers.
Service architecture
Modular monoliths or microservices chosen for the team and domain, not as a default. Boundaries follow the business, not the framework.
API gateways
Edge policies for routing, auth, and rate control, including Apigee where an enterprise gateway is already part of the landscape.
Integration
Connecting product backends to identity providers, payment systems, data stores, and third-party APIs with explicit failure handling.
Data access
Persistence layers over PostgreSQL, Redis, and document stores with migrations and access patterns that stay reviewable.
Operational quality
Health checks, structured logs, and background work designed so the service can be deployed and diagnosed in production.
How we approach the work
- 01
Define the contract first
We write the API surface and domain model before expanding implementation, so frontend and integration work can proceed against something stable.
- 02
Keep the core small
Business rules stay in well-owned modules. Infrastructure and vendor SDKs sit at the edges so they can be replaced without rewriting the product.
- 03
Ship behind tests
Service tests and contract checks travel with the code so changes remain safe as more consumers attach to the API.
Technologies we use
Selected for the problem, not as a partnership claim.
- Node.js
- NestJS
- Python
- FastAPI
- REST APIs
- Microservices
- API Gateways
- Apigee
- PostgreSQL
- Redis