Resilient API architecture and enterprise systems integration
We connect fragmented operational systems, legacy ERPs, internal databases, and external cloud platforms through robust, auditable integration pipelines designed to reduce manual re-keying and surface data discrepancies.
Overcoming enterprise data silos
In most Australian organisations, core business data is divided across legacy on-premises databases, specialist industry platforms, and cloud applications. When these systems cannot communicate reliably, teams waste hours reconciling conflicting records and managing spreadsheet workarounds.
Current-State Mapping
We trace every data flow, trigger condition, schema divergence, and timing constraint before designing connectors.
Phased Coexistence
Where legacy systems cannot be retired, we build robust synchronization bridges allowing new applications to coexist with core records.
Deterministic Reliability
Integrations engineered with idempotency keys, automated retry policies, dead-letter queues, and real-time failure alerting.
Integration patterns we engineer
Every integration scenario requires architecture matched to throughput, latency, and system constraints.
REST & GraphQL API Architecture
Design, implementation, and documentation of production-grade APIs following OpenAPI standards.
- Strict request validation and comprehensive error handling schemas
- Token-based authentication (OAuth2 / mTLS) and rate limiting
- Interactive API documentation and automated regression contracts
Event-Driven & Pub/Sub Pipelines
Asynchronous message queues and event streaming for high-throughput, decoupled system updates.
- Webhook listeners with cryptographic signature verification
- Delivery tracking with retries and Dead-Letter Queues (DLQ); final delivery depends on upstream systems
- Asynchronous background processing preventing UI lockup
Scheduled Reconciliation & Batch Sync
Scheduled data exchange and automated ledger/inventory reconciliation routines.
- Bi-directional change detection and incremental synchronization
- Automated reconciliation reporting flagging discrepancies
- Configurable dispute handling and manual escalation queues
Legacy Database Decoupling
Safe data extraction and synchronization from legacy relational and flat-file databases.
- Read-only replica access preventing production locks
- Change Data Capture (CDC) streaming without database polling
- Data masking and sanitisation aligned to applicable project privacy requirements
Engineered for failure modes, not just sunny days
Anyone can write an API script that works under ideal conditions. Production integration requires hardening for inevitable upstream outages and corrupted payloads.
Idempotency & Deduplication
Idempotency tokens and reconciliation checks can reduce duplicate financial records, duplicate invoices, or corrupted inventory lines when retry paths are designed and tested for the participating systems.
Secrets & Credential Governance
Avoid hardcoded API keys and plaintext credentials. Integrations can use cloud secret managers and automated credential rotation where those controls fit the project.
Audit Trails & Observability
Payload exchanges can be timestamped and logged with status codes, payload hashes, and execution duration to support project-specific operational reviews.
Failure Handling & Circuit Breakers
If a downstream third-party service degrades, circuit-breaker mechanisms pause calls gracefully and buffer requests rather than overwhelming the failing target.
Related engineering services
Integrate your APIs with custom applications and legacy modernisation roadmaps.
Legacy Modernisation
Modernise aging enterprise systems incrementally using API strangler-fig patterns.
Explore modernisation →Custom Software Development
Engineer custom operational applications that sit at the center of your integrated ecosystem.
Explore custom software →Modernisation Roadmap Guide
Read our step-by-step roadmap for inventorying dependencies and decoupling legacy data.
Read planning guide →Need to connect your operational systems?
Speak directly with an Australian software engineer. We will review your data flow, inspect current endpoints, and outline a resilient integration plan.