Service — SaaS Products

Go from idea to live SaaS in weeks.

Multi-tenant architecture, billing, user management, and scalable infrastructure — built AI-first and production-ready from day one, with senior engineers reviewing every line.

What is it? Kinisys builds complete SaaS products — the multi-tenant backend, billing and subscriptions, authentication, admin tooling, and customer-facing app — using AI agents directed by senior engineers. A first version typically ships in 4–6 weeks, the code lives in your GitHub from commit one, and you own 100% of it.

What you get

  • Multi-tenant architecture — clean data isolation, role-based access, and a foundation that scales with your customer base.
  • Billing & subscriptions — Stripe-based plans, metering, trials, and upgrade/downgrade flows wired in.
  • Auth & user management — sign-up, SSO options, team/org management, and permissions.
  • Production infrastructure — CI/CD, automated tests, observability, and a staging environment from day one.
  • Your repository — the full-stack codebase in your GitHub organization, with handover docs and no lock-in.

How we build it

One focused workshop locks the scope and a fixed-price proposal. Senior engineers then design the architecture and data model — the blueprint the AI builds against. AI agents generate the full stack (APIs, frontend, tests, CI/CD) in parallel, and every pull request is reviewed line-by-line by a senior before it ships. You see weekly demos against a live staging environment, and every build includes a 30-day post-launch window for fixes and tuning.

Default technology stack

Next.js / React / TypeScript on the front end, Node.js or Python (FastAPI) on the back end, PostgreSQL plus Redis, hosted on AWS or Vercel, with Stripe for billing and Supabase where it fits. If you have a hard requirement — Java, .NET, or on-prem — we adapt.

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FAQ

SaaS development questions.

How long does it take to build a SaaS product?
A typical first version ships in 4–6 weeks: one week to scope and lock requirements, one week of human-led architecture, then AI agents build the full stack under senior review. Larger platforms are delivered in phases, each with a fixed price and timeline.
Do I own the SaaS codebase?
Yes — 100%. The code lives in your GitHub organization from the first commit. There is no license-back, no shared ownership, and no platform you must keep paying for.
Is the SaaS multi-tenant and ready to scale?
Yes. We architect multi-tenancy, role-based access, billing, and horizontal scaling from day one, so the product is production-ready rather than a prototype that has to be rebuilt to grow.

Ready to build your SaaS?

Tell us what you want to build, your rough timeline, and any budget range. We reply within one business day.

Book a free consultation