Services
API, Data & Integration
We design and implement backends that connect internal operations with external services. We work with Node.js, TypeScript, Python, PostgreSQL, Redis, and object storage to build contract-first APIs, event processing, and reliable data synchronization.
Discuss your systemData moves. The contract stays clear.
An API request or event brings information from an internal application or external service.
Request or event
Incoming payload
Explore an example of the approach. Each project is shaped around its own requirements.
Read the complete flow
Receive
An API request or event brings information from an internal application or external service.
Validate
The API contract defines the shape of the data. Validation and idempotency govern how a request is accepted.
Process
Transactions, background jobs, and retry handling coordinate the operation when connected services need more time.
Synchronize
The connected system receives the processed information through an agreed integration path.
Services
What's included
Node.js, TypeScript, NestJS, Express, and Fastify services
Python and FastAPI service foundations
REST and OpenAPI contract design
PostgreSQL, MySQL, MongoDB, Redis, and object storage
Prisma data access and migration governance
Idempotency and transactional processing
Background jobs, retries, and event processing
LINE, Facebook, email, and webhook integrations
How we work
Clear steps for predictable delivery and future scalability.
- 01
Requirement Analysis
Clarify scope, success metrics, and constraints.
- 02
System Design
Architecture, security, and rollout plan.
- 03
Development
Build with reviews, docs, and testing.
- 04
Deployment
Go-live with observability and rollback options.
- 05
Maintenance & Support
Operate, improve, and report regularly.
Contact
Tell us what is slowing the operation down.
Share the system, workflow, integration, infrastructure, or support problem you are facing. We will help clarify the current state, the practical next step, and whether Nexus is the right delivery partner.