Tenancy
A tenant model and data access rules that make cross-customer leaks a structural mistake, not a missed if-statement.
Product software
Bespoke SaaS
SaaS built around the way you charge, invite, and support customers — not a template with your logo on it.
A bespoke SaaS product is a system of record with a front door. Tenants, roles, invitations, plans, and the admin tools your own team will live in are the product, as much as the feature a customer sees on day one. We design that model before we decorate the dashboard.
The usual stack is TypeScript and PostgreSQL, with a job runner for work that should not happen inside a request. Rust joins when a workload earns it. Billing integrates with a provider such as Stripe unless you already have one. We do not invent a second ledger.
Bespoke SaaS
What the work covers
Accounts and roles
Sign-up, invitations, and permissions that match the org chart you sell to, including the awkward owner-and-billing-contact split.
Billing
Plans, trials, and the states in between — past due, canceled, comped — reflected in what the product allows.
Onboarding
The first session, empty states, and the path from “account exists” to “the product did something useful.”
Admin and support
Internal tools to look up a tenant, see what happened, and fix it without a production console.
Operations
Audit trails, background jobs, and enough observability that a failure has a name.
Delivery
What you leave with
- A multi-tenant application with an explicit access model
- Billing states wired to product behavior
- An internal view your team can support from
- A deployment path and a short runbook
Fit
Choose this when
- You sell software to more than one customer on shared infrastructure.
- Accounts, roles, or billing are part of the product, not a later phase.
- A marketing site is not a substitute for the application itself.
Neighbors
When another practice fits better
These are the switches we recommend in scoping, not a disclaimer.
TypeScript
There is one customer, or the product is a site and a handful of authenticated tools.
Expo
The SaaS has to have a first-party mobile client in the same engagement.
APIs & platforms
Other companies will build on you, and the API is the product they buy.
Continue
Related practices
- TypeScriptWeb platforms, APIs, and product UI in one typed language from the database boundary to the browser.
- APIs & platformsPartner integrations, internal platforms, and the contracts other software depends on.
- RustServices, tools, and cores where correctness, speed, and a small memory footprint are the product.
Have a product in mind? Let’s scope it.
Get in touch
Bespoke SaaS is a starting point. Bring the constraint that matters more.
Start an engineering conversation
Tell us what you are building, what already exists, and which surface matters first. We will reply with a point of view.