07 · Software Engineering
API Development and Integration
Typed, authenticated and resilient interfaces connecting your entire software ecosystem.
Service Overview
Design external and internal APIs, webhook pipelines and reliable integrations across ERP, CRM, accounting, payment and industry platforms.
Disconnected business software silently drains hours every week as staff copy customer details, invoices and inventory updates between systems by hand. Worse still, poorly built point-to-point scripts fail silently whenever a third-party endpoint times out or changes schema.
Cyber Grid engineers production-grade REST, GraphQL and event-driven APIs alongside fault-tolerant third-party integrations. Every interface is built with OpenAPI documentation, idempotency keys, dead-letter retry queues, rate limiting and full observability so data stays synchronised reliably.
Scope of Work
What is included
Six specialised capabilities we cover during a API Development and Integration engagement.
REST & GraphQL API engineering
Versioned, strictly validated APIs documented with OpenAPI/Swagger specs and predictable error contracts.
ERP, CRM & accounting integrations
Bi-directional sync across platforms such as Xero, MYOB, NetSuite, Salesforce, HubSpot, Stripe and custom line-of-business databases.
Event-driven & webhook pipelines
Asynchronous message queues, webhook signature verification, exponential backoff retries and dead-letter alerting.
Idempotency & data reconciliation
Guarantee financial and inventory records are never duplicated or dropped during network hiccups.
API gateway, auth & rate limiting
OAuth2/OIDC scopes, mutual TLS, scoped API keys, request throttling and partner usage telemetry.
Legacy adapter layers
Wrap older SOAP, CSV/SFTP or direct-database systems behind clean, modern JSON APIs.
Outcomes
Key operational benefits
Measurable engineering and business advantages designed into every engagement.
Single source of truth
Customer, order and financial data stays consistent across finance, sales and operations without manual re-keying.
Self-healing under failure
Queued retries and idempotency keys prevent lost transactions when upstream SaaS providers experience downtime.
Partner-ready developer experience
Clean OpenAPI specs and sandbox environments let external partners integrate in days rather than months.
Auditable data lineage
Structured correlation IDs trace every payload across service boundaries for rapid troubleshooting.
Customer Use Cases
Where this capability creates impact
Representative operational scenarios across Australian industries.
Wholesale & E-Commerce
Challenge & Scenario
Synchronising orders, stock levels and invoices between an online storefront, warehouse WMS and accounting platform.
Target Outcome
Eliminated overselling and manual end-of-day invoice entry.
B2B Platform Provider
Challenge & Scenario
Publishing a versioned, rate-limited public REST API so enterprise clients can automate provisioning and reporting.
Target Outcome
Self-service partner onboarding with interactive API documentation and scoped keys.
Healthcare & Service Networks
Challenge & Scenario
Bridging legacy on-premise scheduling software with modern SMS notifications and online booking portals.
Target Outcome
Modern digital customer experience without replacing core back-office records overnight.
Engagement Workflow
How API & Integrations delivery runs
Five clear stages with documented outputs and stakeholder checkpoints.
Data flow & contract mapping
Catalogue source/target schemas, ownership rules, rate limits and failure modes.
OpenAPI & queue design
Define typed schemas, authentication scopes, idempotency keys and retry strategies.
Connector & API implementation
Build stateless API handlers, transformation pipelines and sandbox mocks.
Fault-injection & load testing
Simulate upstream timeouts, malformed payloads, duplicate webhooks and traffic spikes.
Monitored rollout
Deploy with correlation logging, queue-depth alerts and reconciliation dashboards.
Common Questions
API & Integrations FAQs
Answers to common scoping, security and delivery questions. Visit our main FAQs page for broader company questions.
We decouple integrations using persistent message queues and idempotent workers. Outbound events queue safely, retry automatically with backoff and alert operators only if an upstream outage persists.
Yes. We regularly build secure adapter services around SOAP/XML endpoints, scheduled SFTP file exchanges, EDI feeds or read-replicas where direct APIs are unavailable.
We enforce OAuth2/JWT or hashed scoped API keys, strict JSON schema validation, per-tenant authorisation checks, rate limiting and TLS 1.2+/1.3 encryption.
Connected Capabilities & Insights
Related services & technical reading
Custom Software Development
Design and build bespoke line-of-business applications, internal tools and domain-specific platforms when off-the-shelf software falls short.
Enterprise Software Solutions
Architect and modernise multi-department enterprise systems with SSO, granular governance, high-throughput data pipelines and legacy decomposition.
Cloud Computing Solutions
Architect, migrate and automate cloud infrastructure using Infrastructure as Code, multi-AZ availability, observability and FinOps cost discipline.
Top Cybersecurity Practices for Modern Businesses
Most business breaches exploit unpatched software, phished credentials or over-privileged cloud keys rather than exotic exploits. Explore pragmatic engineering controls aligned with the ACSC Essential Eight.
How API Integrations Improve Business Efficiency
Manual CSV exports and double data entry quietly bottleneck growing teams. Learn how event-driven API integrations, idempotency keys and retry queues keep CRM, ERP and finance platforms in sync.
Ready to scope API Development and Integration?
Share your current architecture, timeline or operational goals and receive clear, practical advice from our engineering team.