Service
API & Backend Development Services
Every product is only as good as its backend. NexusNao designs and builds APIs and server systems that are fast under load, observable in production, secure by default and documented well enough that your own team enjoys using them.
Problems we solve
Sound familiar?
Fragile backends that fall over under real traffic
Undocumented APIs slowing every integration to a crawl
Security handled by hope instead of design
Data models that fight every new feature
Capabilities
What NexusNao delivers
API design & build
REST and GraphQL APIs with OpenAPI specs, versioning and great docs.
Data modelling
Schemas designed for the queries you'll actually run, with migration discipline.
Auth & authorization
OAuth, SSO, API keys, RBAC and multi-tenant isolation done correctly.
Performance & scale
Caching, queues, background jobs and load testing before launch days.
Observability
Structured logs, traces, metrics and alerting so incidents are short.
Typical use cases
Where this lands first
- Public APIs for partners and integrations
- Backends for web and mobile products
- Event-driven systems and background processing
- Third-party integrations (payments, messaging, ERPs)
- AI service layers with caching and cost controls
Recommended technology
Tools we reach for
- Node.js & TypeScript
- Python & FastAPI
- PostgreSQL & Redis
- GraphQL & REST
- Docker & Kubernetes
- AWS & GCP
Final technology choices are made per project, on evidence — never by default.
Delivery process
How the engagement runs
Model
Domain, data and API contract design reviewed with your team.
Build
Type-safe implementation with automated tests and CI.
Load-test
Verified performance against realistic traffic profiles.
Operate
Monitoring, runbooks and handover or ongoing support.
Benefits
What you get out of it
APIs partners integrate in days, not months
Backends that stay calm on your biggest day
Security and compliance evidence auditors accept
Foundations that make the next feature cheaper, not harder
FAQ
API & Backend Development questions
Straight answers to the questions teams usually bring us.
REST or GraphQL?
Depends on consumers. REST with OpenAPI suits public APIs and simple integrations; GraphQL shines for complex product UIs with many views. We often combine both behind one gateway.
How do you approach API security?
Defence in depth: strong auth, scoped tokens, input validation, rate limiting, audit logging and dependency scanning — verified with automated security tests in CI.
Can you scale our existing backend?
Yes. We profile first, fix the measured bottlenecks — queries, caching, concurrency — and add capacity engineering only where evidence demands it.
Related services
Often combined with
Intelligence, made operational.
Ready to talk api & backend development?
Share where you are today. We'll respond with an honest read on feasibility, timeline and the fastest route to value.