API Integration & Backend
Connect systems, ship webhooks, expose clean APIs.
REST APIs, webhooks, and integrations across the systems your business runs on — clean contracts, proper auth, observability from day one.
Problems I solve
- Two SaaS tools that need to talk but don't
- Legacy system exposing no API
- Webhook endpoints failing silently
- No standard for internal APIs
What you get
- REST API design and implementation
- Webhook receivers with retries and signing
- Integration adapters for legacy systems
- OpenAPI documentation
Use cases
Stripe → internal billing sync
Idempotent webhook receiver, retries, dead-letter queue, and reconciliation job.
Two-way CRM ↔ product sync
Bi-directional, conflict-safe sync between HubSpot/Salesforce and your app DB.
Public partner API
OAuth 2.0, rate limits, SDK-friendly errors, and OpenAPI-generated clients.
Legacy SOAP → modern REST adapter
Wraps a legacy system so modern apps can consume it safely.
Examples I've shipped
Stripe billing sync
Outcome — Zero-drift billing sync across 12k customers.
HubSpot ↔ App bi-directional sync
Outcome — Sub-minute sync with idempotency + conflict resolution.
How I work
- 1
Contract design
Define endpoints, auth, errors, and versioning.
- 2
Implementation
Build with tests, logging, and rate limiting.
- 3
Documentation
OpenAPI spec + example clients.
- 4
Deployment
CI/CD, monitoring, and alerts.
Deliverables
- Production API with tests and docs
- OpenAPI specification
- Monitoring dashboards
Benefits
- Systems that talk reliably
- Fewer manual data-entry hours
- Foundation for future automation
Frequently asked questions
Do you handle authentication?+
Yes — OAuth 2.0, API keys, JWT, HMAC-signed webhooks. Picked based on your consumer's needs.