SaaS platforms built to be sold.
Multi-tenant architecture, roles, billing and onboarding — the product shape investors and customers expect, without painting yourself into a corner.
- Team
- 50+ IT professionals
- Delivery
- Design, build, release, support
- Engagement
- Project or dedicated team
What this covers
Concrete work we take on under saas development — not a catalogue of buzzwords.
- Multi-tenant data models and isolation
- Subscription billing and plan entitlements
- Admin, owner and member role systems
- Onboarding, invitations and tenant provisioning
Problems we take on
If one of these sounds familiar, we have likely shipped something close — and we will say so if we have not.
- Your MVP was single-tenant and cannot become a real SaaS.
- Billing and access control were bolted on late.
- You need a product that many companies can buy, not a one-off build.
Technologies
Stacks we use when they fit the product and your team — not a mandatory toolkit for every engagement.
- Next.js
- Node.js
- PostgreSQL
- Stripe
- Auth0/Cognito
- Redis
How we work
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Scope before code
We write what is being built, what is excluded, integrations, dates and cost basis before the build starts. Changes get quoted before they get coded.
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Talk to the people doing the work
You meet named engineers and designers. There is no account manager translating technical questions in both directions.
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Working software every two weeks
Increments land on staging you can open and use. Progress you can click on beats progress in a status report.
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You own everything
Repository, cloud account, domains and credentials stay yours. We work in your accounts wherever possible.
FAQ
Fixed price or dedicated team?
MVPs often start fixed-scope; ongoing product work usually fits a dedicated team better.
Do you help with product decisions?
We challenge scope that hurts delivery. Final product calls stay with you.
Do you build multi-tenant from day one?
When the product will be sold to many companies, yes. We design isolation, roles and billing early so you are not rewriting the foundation later.
Can you add billing and plans?
Yes — subscriptions, entitlements and plan limits are a normal part of the SaaS shape we ship.
What about onboarding and invitations?
Tenant provisioning, invites and role setup are part of making a SaaS sellable — we include them when the product needs them.
Related
Services that often sit beside saas development on the same roadmap.
Why Three Index
Founded in 2020 in Ahmedabad, Gujarat. Fifty-plus IT professionals. More than five hundred projects shipped across product and enterprise work.
We are large enough to staff serious products and small enough that the people who wrote a module can still explain it. See how we operate, browse case studies, or join the team.
Tell us what you are trying to build.
Send a short description of the project. You will get a reply from someone technical — with questions worth answering, not a brochure.