A production-ready backend for marina management — in two months.
Harbr is a multi-tenant operations and billing platform for the marina services sector. With a clear product vision and a market window to hit, the Harbr team engaged Trizen Labs to design and build the platform's backend API. We delivered a robust, scalable foundation in two months.
- Client
- Harbr
- Sector
- Marina services
- Engagement
- Backend platform build
- Duration
- 2 months to production-ready
- Scope
- Multi-tenant API, operations & billing

The challenge
Marina operations still largely run on spreadsheets and ageing desktop software — berth management, service billing, and customer records scattered across systems that were never designed to work together. Harbr set out to replace that with a modern, multi-tenant platform the whole sector could run on.
The constraint was time. The team needed the platform's backend foundation built quickly — but a multi-tenant operations and billing system is exactly the kind of foundation where early shortcuts become permanent debt. Harbr needed speed and architectural discipline at once, which is why they brought in Trizen Labs.
What we delivered
We designed and built the complete backend API for the Harbr platform — the foundation its product runs on:
- A multi-tenant architecture that isolates each marina's data and configuration while running on shared, scalable infrastructure.
- Core operations workflows for managing marina services, customers, and day-to-day activity.
- A billing engine handling the recurring and usage-based charging the marina sector depends on.
- Authentication, roles, and permissions designed for operators, staff, and administrators.
- A clean, well-documented API surface the Harbr product team could build against from the first week.
Speed with discipline
From engagement to production-ready backend took two months. That pace came from senior engineers working from proven foundations and a tightly disciplined scope — not from cutting corners. We shipped working increments weekly, so the Harbr team was building their product against a live API while the platform took shape beneath it.
The result is a codebase the Harbr team owns with confidence: documented, tested, and structured to be extended by any engineer who joins after us.
The outcome
Harbr launched on its timeline, with a backend built to carry the platform from its first marina to its hundredth. Two months from kickoff, the team had a production-ready, multi-tenant foundation — and a delivery benchmark for everything that follows.

