ZENKEI
We design, build and scale multi-tenant SaaS products, from authentication, subscription billing and dashboards to APIs and cloud infrastructure, on a modern stack you own.
Rated 4.9 out of 5 by clients across AI, software and quantitative projects.
SaaS development is building a software product your customers reach over the web and pay for by subscription. ZenkeiX designs and builds the whole thing, multi-tenant architecture, authentication, subscription billing, dashboards, APIs and the cloud infrastructure, so one codebase serves many customers securely, on a stack you own.
Whether you are validating a new idea with an MVP or scaling a product that already has paying users, we ship the smallest version worth charging for, then grow it against real usage. We can add AI features where they become a differentiator, and connect the product to whatever your customers already use through clean APIs.
Not another template. A real product customers pay to keep using.
Secure data isolation, roles and permissions, and one codebase that serves every customer, built to scale from the first tenant.
Plans, trials, metered usage, upgrades and dunning wired to Stripe, so access always matches what customers actually pay.
The product UI your users work in and clean, documented APIs and webhooks so it connects to the rest of their stack.
Deploys, environments, observability and security in your own cloud accounts, so the platform is reliable and yours.
One session on your idea, users and pricing. We leave with the smallest version a customer would pay for, not a wishlist.
Multi-tenant core, auth, billing and the key workflow, built in your repositories and your cloud, with security and logging from the start.
We ship, measure how customers actually use it, and add features, performance and reliability as the user base grows.
SaaS development is building a software product that customers access over the web and pay for by subscription. It covers the multi-tenant architecture, authentication, subscription billing, dashboards, APIs and cloud infrastructure needed to run one codebase that serves many customers securely.
A focused SaaS MVP with auth, billing and the core workflow usually ships in six to twelve weeks. We scope the smallest version that a customer would pay for, launch it, then add features against real usage rather than building everything up front.
We build on a modern, boring-where-it-counts stack: TypeScript with React and Next.js or Node on the front and back, PostgreSQL for data, Stripe for billing, and Docker on AWS, Google Cloud, Cloudflare or Vercel. We pick per project, not by fashion, and keep it easy to hire for.
Yes. Multi-tenant data isolation, roles and permissions, subscription plans, metered usage, trials, upgrades and dunning are core to what we build. Billing is wired to Stripe with webhooks so plans, invoices and access stay in sync with what customers actually pay for.
Both. We launch the MVP and then scale it: performance, reliability, security, observability and the infrastructure to handle growth. Many clients keep us on as their product team, shipping features and hardening the platform as the customer base grows.
You do. The code lives in your repositories and the product runs in your own cloud accounts, so there is no lock-in to us. We set it up, document it and can hand it over or keep maintaining it, whichever you prefer.
Thirty minutes on your SaaS. No slides, no fluff.