Multi-tenant architecture done correctly from the start.
Multi-tenancy is the foundational architecture for SaaS products. User data must be isolated by organization — no leaks between tenants, no queries that accidentally return another org's data. Getting the data model right at the start is critical.
Need multi-tenant architecture built — organization-scoped data with proper isolation and per-tenant configuration
Multi-tenant architecture has three implementation strategies:
1. Row-level isolation (recommended for most SaaS):
All tenants share the same tables. Every table has an organization_id column. Every query is scoped to the current organization.
The risk: a missing WHERE organization_id = ? leaks data across tenants. Mitigation: Postgres Row Level Security (RLS) enforces isolation at the database level — even if application code is wrong.
2. Schema-per-tenant: Each tenant has their own Postgres schema. More isolation, more operational complexity. Typically used for compliance-sensitive applications where tenant separation is required contractually.
3. Database-per-tenant: Each tenant has their own database. Maximum isolation. Very high operational cost. Used for the most security-sensitive applications.
The practical decision: For 99% of SaaS: row-level isolation with Postgres RLS. It's simple, scalable, and secure with proper implementation.
Data model:
organizations (id, name, slug, plan)
organization_members (org_id, user_id, role)
[all other tables] (org_id, ...)
Invitation flow: Email invitation → accept → create account or log in → join organization with specified role.
Multi-tenant application with organization model, tenant data isolation, per-tenant customization, and auth scoped to organizations
Organization data model
with members and roles
RLS policies
for tenant isolation
Organization-scoped queries
throughout the application
Invitation workflow
for adding members
Per-tenant settings
and configuration
One honest number to start.
Fixed-scope, fixed-price. The number below is the starting point — final scope is built from your brief.
Multi-tenant application with organization model, tenant data isolation, per-tenant customization, and auth scoped to organizations
Three steps, every time.
The same repeatable engagement on every project. No surprises, no mystery, no billable ambiguity.
Brief & discovery.
We send you questions, then get on a call. Output: a written scope with every step, feature, and integration listed.
Build & ship.
Fixed schedule, weekly reviews. No scope creep unless you change the scope — and if you do, we reprice it transparently.
Warranty & retainer.
30-day warranty on every launch. Most clients stay on a monthly retainer for ongoing features and maintenance.
Why Fixed-Price Matters Here
Multi-tenant scope is the organization model, the role structure, and the data model. Fixed-price from the spec.
Questions, answered.
Yes, but it requires careful migration. Add `organization_id` to all relevant tables, migrate existing data to a default organization, add RLS policies, and update all queries. This is a significant engineering effort — more expensive than building multi-tenant from the start.
Tell Ryel about your project.
Describe what you’re building and what outcome you need. You’ll have a written, fixed-price scope within the week.