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Anonymised client · Scalable, frontend-agnostic platform
A product-led business needed a SaaS that could support multiple frontends, partner integrations, and future expansion without repeatedly reworking core logic.
Outcome
Multi-tenant
isolation at API + DB
Capabilities
The lede
A product-led business required a SaaS platform that could support multiple frontends, partner integrations, and future expansion without repeatedly reworking core logic.
Objectives
Approach
We approached the project as a platform architecture exercise — separation of concerns and long-term extensibility over short-term convenience. The system was designed around a central API layer responsible for business logic, validation, and data access. Frontends were treated as interchangeable consumers, able to evolve, be replaced, or multiplied without impacting the underlying system. Architecture decisions were driven by how the platform would grow, not just how it would launch.
→ By investing in a headless platform architecture early, the business avoided repeated rebuilds as new requirements emerged. The platform supported growth across channels, partnerships, and product lines without architectural compromise — letting the team focus on product value rather than system constraints.
Engineering highlights
API-first design
Centralised API layer exposing every core platform capability
Headless architecture
Complete separation of backend logic from frontend presentation
Multi-tenancy
Tenant-aware data access and isolation at API + database layers
Authentication
Secure auth flows for users, admins, and external API consumers
Validation
Consistent request and response validation across every endpoint
Scalability
Stateless services enabling horizontal scaling under load
Outcome
Multi-tenant
isolation at API + DB
Reflection
Intentional platform design pays compounding dividends for SaaS that is expected to evolve. By separating concerns, enforcing clean interfaces, and designing API-first, we delivered a system that stayed flexible as demands changed. The same approach informs every Canarlo platform engagement.
Further reading
Modernisation
A working platform that had outgrown its original architecture. Auth, data, and observability rebuilt without a service interruption — the customers never noticed.
Read
AI Automation
Categorisation, summarisation, and triage automated across an operations team's daily workload. Graceful degradation when the model is unavailable — never hard-fail.
Read
AI Platform
A documentation platform that reads code and emits prose a non-engineer can act on. Used internally on every Canarlo build.
Read