SaaS & B2B platforms
Multi-tenant APIs, billing webhooks, and admin surfaces aligned with your React or mobile clients.
NASBIX TECHNOLOGIES
Node.js backends that scale with your product
TypeScript APIs, event-driven workers, and real-time services—observable, secure, and paired with your React or mobile frontends from Karachi.
TypeScript APIs
NestJS & Express
Secure SDLC in every sprint
Named solution architects
Node.js service
APIs your frontend and partners can depend on
Node.js is the right choice when your squad already ships JavaScript—but production backends need more than Express tutorials. NASBIX builds typed services with clear contracts, auth, queues, and observability inside the Definition of Done.
From Karachi HQ we deliver for SaaS, marketplaces, and integration-heavy products. Named architects stay close to backend edge cases—idempotent webhooks, rate limits, connection pools, and failure modes under load—so mobile, web, and data teams share one release train.
- REST, GraphQL, or tRPC—documented and versioned for partners
- Workers, queues, and scheduled jobs for async work
- Postgres, MongoDB, Redis—matched to your data model
- Handovers your platform team can operate with runbooks
Who we help
Built for products that move data fast
Greenfield APIs, modernization, and partner platforms—same bar for security and operability.
Marketplaces & commerce
Order flows, payment callbacks, inventory events, and reconciliation hooks ops can trust.
Real-time & integrations
WebSockets, partner feeds, and ETL-friendly endpoints with monitoring when volume spikes.
What you get
Node.js capabilities that matter
Scoped to your traffic shape, compliance needs, and partner map—not a hello-world API.
API design
REST, GraphQL, or OpenAPI-first contracts—pagination, errors, and versioning partners can integrate against.
Frameworks
NestJS modules or Express services—TypeScript, validation, and testing patterns your team can extend.
Real-time
WebSockets, SSE, and event streams for live dashboards, chat, or ops signals—with backpressure in mind.
Async & queues
Bull, SQS, or Rabbit patterns—retries, dead letters, and idempotency for webhooks and batch work.
Data layer
Prisma, TypeORM, or Mongoose—migrations, connection pooling, and query patterns tuned for production load.
Security & ops
JWT/OAuth, rate limits, secrets hygiene, structured logs, metrics, and health checks SRE can wire alerts to.
Production-ready backends
Depth that survives traffic—not just Postman demos
We harden what breaks after launch: unbounded event loops, memory leaks, auth bypasses, and silent queue failures when campaigns or partners spike volume.
- OWASP-minded input validation & authZ
- Rate limiting & partner API keys
- Dockerized deploys & env separation
- OpenTelemetry / APM-friendly logging
- Load testing before peak events
- Penetration test coordination when required
How we deliver
From discovery to production APIs
A cadence built for backend risk—contracts mobile and web can mock, checkpoints security can trust before traffic hits.
- 01 · DiscoverConsumers, partners, SLAs, data stores, compliance, and success metrics.
- 02 · ArchitectService boundaries, auth model, event flows, and deployment topology.
- 03 · BuildSprint demos, contract tests, load slices, and sandbox integrations.
- 04 · LaunchRollout, monitoring, runbooks, autoscaling hooks, and optional managed pods.
Engagement models
Buy the way you ship backend services
Fixed-scope API delivery
Defined endpoints or microservice with acceptance criteria and OpenAPI partners can review.
Dedicated backend pod
Embedded engineers and a named architect on your backlog, rituals, and release calendar.
Scale & hardening
Performance tuning, queue reliability, and security fixes for APIs already serving customers.
Managed support
On-call patches, dependency updates, and SLA-backed response after go-live.
Explore more
Related stack paths
Pair Node with React frontends, data pipelines, and mobile from the same delivery center.
