Backend and API integrations
A strong interface stands or falls with data, permissions, and integrations. I build backends and integrations that are reliable and connect properly to your Next.js product.
What problem does this solve?
Without a solid backend, a web app remains just a shell. Data is disconnected, permissions are unclear, and every external tool requires custom work or manual handling.
Integrations fail silently: webhooks don't arrive, payments hiccup, or two systems tell a different truth. Users just experience that as 'the app is broken'.
I help with APIs, databases, authentication, payments, and integrations, so processes run automatically and verifiably, with clear contracts and error handling.
That prevents spreadsheets acting as an integration layer and makes your product predictable, even as volume or the number of systems grows.
Who is this for?
- Product teams with a Next.js frontend but too little backend capacity
- Companies that want to connect systems: CRM, payments, provisioning
- Startups that want to get their data model and auth right
- Organizations with fragile or undocumented integrations
- Teams that need to professionalize the data layer after a fast MVP
What I concretely build
- APIs and server actions
- Data models and PostgreSQL
- Authentication, roles, and sessions
- Payment and subscription integrations
- Webhooks and external integrations
- Validation, logging, and safer error paths
Approach
- 01
1. Mapping processes and systems
Which data needs to go where, and who's allowed to do what? First clarity on sources of truth, then building.
- 02
2. Stable contracts
Clear APIs, validation, and error handling, so frontend and external tools stay predictable.
- 03
3. Hardening integrations
Idempotency, retries, and monitoring where needed, so webhooks and payments don't silently fail.
- 04
4. Going live safely
Controlled releases, logging, and a way to find incidents quickly.
Technologies
Example from practice
Hosting and services platforms typically involve domain providers, payments, and automated provisioning. Those integrations need to be reliable, otherwise the product feels fragile, no matter how good the UI looks.