Backend and API Engineering
Backend systems for products where correctness, authorization, data integrity and provider behaviour matter.
What backend and api engineering delivers.
Financial systems, marketplaces, operational platforms and integration-heavy products where correctness matters more than endpoint count.
Explicit invariants
Critical rules live close to domain operations and are enforced before state changes.
Secure authorization
Authentication, RBAC and object-level access checks are applied before sensitive domain work.
Reliable integrations
Provider adapters, webhooks, idempotency, retries and reconciliation are designed for external failure.
A practical path from ambiguity to production.
The exact depth changes by engagement, but the work stays anchored in explicit decisions and operable output.
Model
Define invariants, data ownership, transaction boundaries and error semantics.
Protect
Apply validation, authentication, authorization, rate limits and bounded inputs.
Integrate
Wrap external providers behind stable contracts with observability and recovery paths.
Scale
Use indexes, queues, caching and background work only where the workload justifies them.
Production requirements.
Security, reliability, data integrity and operability are carried through implementation and release.
Authorization before work
Sensitive domain operations start only after access is resolved for the actual resource.
Bounded inputs
Pagination, file sizes, query windows and batch work are explicitly limited.
Idempotency
Financial and externally-triggered writes are safe to retry where the workflow requires it.
Reconciliation
External provider state is never assumed to be identical to internal state without evidence.
How the work is structured.
Zivora treats backend and api engineering as part of a complete operating system for the product. Architecture, security, data, permissions, integrations, failure modes, observability and deployment are considered together so the result can be maintained after launch.
Discovery and structure
We map the business process, existing systems, user roles, data boundaries and external dependencies before deciding where the product or platform should be split.
Implementation
We favour clear contracts, small domain boundaries, efficient data access, explicit authorization and the simplest abstraction that keeps the system understandable as it grows.
Production ownership
Testing, CI, release engineering, logging, monitoring, backup, recovery, security and operational documentation are treated as parts of delivery.
Most difficult systems need more than one discipline.
Adjacent Zivora capabilities can be combined without turning the engagement into disconnected workstreams.
Business Systems
Custom operational software for organisations whose processes cannot be reduced to generic SaaS defaults.
Explore capabilityCloud and Platform Engineering
Production environments, deployment architecture and platform tooling for software that must remain observable and recoverable.
Explore capabilityModernisation and Rebuilds
Refactor, harden or replace ageing software without discarding useful business behaviour.
Explore capability