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Custom SaaS development

A SaaS that takes money,adds tenants and ships featureswithout a rebuild.

Tenant isolation, Stripe billing that survives a failed card, an admin your team uses daily, and room for an AI feature later.

Get in touchRelated work
Multi-tenantStripe billingOnboardingAdmin consolePublic API
Tenantweb · mobile · APIApplicationNext.js · PrismaBillingStripe · webhooksAdminplans · flagsAI featureper-tenant caps
Why it works

Tenancy in the data layer. Billing that survives failures. AI planned into the schema. Tenancy is enforced where data lives.

What's included

Everything the engagement delivers.

Each piece already runs for a client — nothing here is a slide.

01

Architecture sprint

Ten working days: system map, tenant model, data model, integrations, estimate and risks. Credited against the build.

02

Multi-tenant core

Row-level isolation, roles and permissions, organisations, invitations, audit log. In production · AI receptionist SaaS.

03

Billing that behaves

Stripe subscriptions with plan gating, proration, dunning and verified webhooks. In production · compliance SaaS.

04

Onboarding & metering

A first-run wizard, usage limits, and an admin for tenants, plans and flags. Self-serve onboarding.

05

API & embeddables

Public API, outbound webhooks, widget or SDK where the product lives inside other sites. One-script-tag widget.

06

CI/CD on Vercel

Preview environment per pull request, security baseline, documentation. Deploy on merge.

How it runs

Tenancy in the data layer. Billing that survives failures. AI planned into the schema.

A

Tenancy is enforced where data lives

A query cannot return another tenant's rows, whichever screen asked for it.

B

Webhooks update access in real time

Failed cards are retried by dunning; downgrades take effect at period end with data retained.

C

Free plan or trial, chosen by economics

We model both in the architecture sprint; a permanent free plan converts on limits.

D

AI is a feature release, not a migration

Per-tenant model settings, cost caps and evaluation tables exist from day one.

Questions buyers ask

Before you write to us.

01

How long until we have a paying customer?

+
A fixed-scope MVP ships in eight to ten weeks with billing, onboarding and admin in the first release.
02

Who owns the code?

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You do. The repository, the Vercel project and the database are in your name from the first commit.
03

What does multi-tenant mean for our customers' data?

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Each customer's rows are isolated at the database layer and every query is scoped to a tenant.
04

How do you handle failed payments?

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Stripe dunning retries the card; webhooks update access instantly; everything is visible in the admin.
05

Can we add an AI feature later?

+
Yes — tenant-level model settings, cost caps and evaluation tables are in the schema from the start.

Tell us what should
run itself.

Send the problem, not a brief. An engineer replies within one business day.

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