APIs, data and integrations
Backend & API Engineering
The backend is where reliability is decided. We design APIs and services with clear contracts, sensible data models, authentication that holds up, and the logging and monitoring needed to run them confidently. Whether it is a public API for partners or the engine behind a customer-facing product, the goal is the same: boring in production.
What this covers
API design
Contracts, versioning, pagination, error handling and documentation.
Authentication and authorisation
Sessions, OAuth 2.0, SSO, roles and audit logs.
Data architecture
Schema design, indexing, migrations and backup strategy.
Integration engineering
Payments, messaging, ERP/CRM sync and webhooks that retry correctly.
Operations
Logging, monitoring, alerting and runbooks.
Services
- REST and GraphQL API design and implementation with versioning and documentation
- Authentication and authorisation: sessions, OAuth, SSO, role and permission models
- Data modelling on MongoDB or PostgreSQL, with migrations and backups planned from day one
- Third-party integrations: payment gateways, messaging, ERPs, CRMs, logistics and government portals
- Background processing, queues and scheduled jobs
- Observability: structured logs, metrics, alerting and health checks
Engineering standards
TypeScript throughout, validation at every boundary, automated tests for the behaviour that matters, and deployment pipelines that make releases routine. Security is not a phase; it is in the code review checklist.
Legacy systems
We also work with what already exists, stabilising, documenting and gradually modernising backends that have grown without a plan.
Questions we hear often
Can you take over a backend someone else built?
Other capabilities
Need backend & api engineering done properly?
Tell Highlight Innovationz about the business behind the request. We will scope it honestly and show you what the first release should be.