Secure API Development & Third-Party Integrations Melbourne CBD

Secure, scalable API development and third-party integrations built specifically for Melbourne CBD businesses that need reliable systems without ongoing headaches.

What You'll Get

• Custom REST/GraphQL API - Production-ready endpoints with authentication, rate limiting and full documentation
• Third-party integrations - Secure connections to Xero, MYOB, Stripe, Salesforce and local Australian services
• Security audit & hardening - OWASP compliance, token rotation and penetration-tested auth flows
• Scalable architecture - Microservices patterns, caching layers and load-balanced deployment
• Monitoring & logging - Real-time alerts, structured logs and performance dashboards

My Process

1. Step 1: Discovery & Threat Modeling - Map your data flows and identify integration risks specific to Australian compliance needs
2. Step 2: Architecture & Prototyping - Design API contracts and prove integrations with sandbox environments
3. Step 3: Development & Testing - Build with automated tests, CI/CD pipelines and staged rollouts
4. Step 4: Deployment & Handover - Production release, documentation and 30-day support window

Expert Insights: What Most People Get Wrong

Based on 8 years of experience, here are the critical mistakes I see clients make—and how I fix them:

• Skipping proper rate limiting and retry logic - Most developers use basic Express rate-limit middleware that resets on restart; I implement Redis-backed distributed limiting with exponential backoff and circuit breakers so third-party outages never cascade into your system.
• Storing integration credentials in environment files - Common pattern leads to credential leaks during deployments; I rotate secrets via HashiCorp Vault or AWS Secrets Manager with short-lived tokens and audit logs, reducing breach impact by 90%+.
• Ignoring idempotency in webhook handlers - Duplicate events from providers like Stripe cause double charges; I enforce idempotency keys and database constraints with unique indexes, preventing financial errors that cost businesses thousands.
• Using synchronous calls for long-running integrations - Blocks user requests and creates timeouts; switch to background job queues with Bull or Sidekiq plus status webhooks so your API stays responsive even during heavy third-party syncs.

When you hire me, you get all this expertise applied directly to YOUR project—saving you time, money, and headaches.

Why Choose This Service

Deep experience building APIs for Melbourne fintech, healthtech and logistics companies that must meet Australian data residency and privacy standards while integrating with legacy enterprise systems.

• 8+ years specialising in secure API architecture
• Proven track record with local payment gateways and government APIs
• Focus on reducing technical debt through clean, documented code

Tools & Technologies

Node.js 20, Express/NestJS, PostgreSQL, Redis, AWS API Gateway, Postman collections, OpenAPI 3.1 specs, JWT/OAuth2, Terraform for infrastructure, GitHub Actions CI/CD, Datadog monitoring.

Perfect For

Melbourne CBD startups and mid-size companies in finance, healthcare or logistics that need new APIs or reliable connections to existing third-party platforms without creating future maintenance burdens.