Multi-tenant SaaS built right the first time.
Subscription billing, roles and permissions, API-first architecture, cloud deployment: the SaaS plumbing done properly so you can focus on the product.
What is SaaS development?
SaaS development is building subscription software that serves many customers from one codebase. Eazyware builds multi-tenant, cloud-native SaaS with tenant isolation, Stripe or Razorpay billing, roles and SSO, an API-first backend, admin console and CI/CD, in the same architecture we use for our own TheEazy product suite.
| Service line | Digital Product Engineering |
|---|---|
| Engagement | Scoped build with milestones |
| Duration | Quoted after scoping; typically 8–16 weeks |
| Starting price | $31,500 |
| Typical range | $31,500 – $126,000 |
| Deliverables | 4 listed below |
| Delivered from | Bengaluru, India (IST, UK and US East hours) |
| Code ownership | Client owns code, infrastructure, prompts and documentation |
What problem does it solve?
Retrofitting multi-tenancy, billing or RBAC into a single-tenant app is the most expensive rewrite in software. Most startups do it twice.
How do we approach it?
SaaS plumbing is where most rewrites are born, so we get it right the first time: tenant isolation at the data layer, subscription billing and metering with Stripe or Razorpay, authentication with SSO and role-based access, audit logs, feature flags and an API-first backend. The product itself is built on that foundation in sprints, with a beta cohort before launch. Infrastructure is code, deployments are automated, and monitoring and backups are in place before the first paying tenant. The same architecture runs our own TheEazy suite, so the patterns are proven at scale rather than theoretical.
What do clients use it for?
- New multi-tenant SaaS from scratch
- Migrating a single-tenant app to multi-tenant
- Adding billing, roles and SSO to an existing product
- White-label SaaS for resellers
Is it the right fit?
Good fit when
- Startups launching a subscription product
- Companies productising a service
- Teams who have outgrown a no-code build
Probably not when
- Internal tools with one customer
- Marketing sites
What do we build?
- Multi-tenant data architecture with isolation and per-tenant config
- Subscription billing and metering with Stripe or Razorpay
- Auth, SSO, RBAC and audit logs
- API-first backend, public API and webhooks
- Admin console, usage analytics, feature flags
- Cloud deployment, CI/CD, monitoring, backups
What you get
- Production SaaS
- Infrastructure as code
- Documentation
- Onboarding flows
How does the engagement work?
- 01
Scope and data model
- 02
Architecture
- 03
Build in sprints
- 04
Beta
- 05
Launch
- 06
Care Plan
What does good look like?
A product that onboards a new tenant in minutes without engineering, bills correctly including trials, upgrades and dunning, isolates each customer's data by design, and reports uptime and latency you can put in a contract. GST-compliant invoicing for Indian customers and USD billing for international ones. And a codebase your team can extend because it follows conventions rather than heroics.
How does it compare?
| Eazyware | Typical agency | In-house hire | |
|---|---|---|---|
| Time to first result | Sprint Zero in 10 days, then a fixed-scope build | 6–12 weeks of discovery before a proposal | 3–6 months to hire, then ramp |
| Pricing model | Fixed scope, milestone billing, INR or USD | Time and materials, open-ended | Salaries, tooling, management overhead |
| AI depth | Multi-model, evals, cost routing, observability as standard | Often a single vendor API and a prompt | Depends entirely on who you can hire |
| Ownership | Client owns code, infra, prompts and docs | Sometimes retained or licensed back | Owned, but concentrated in one or two people |
| After launch | Care Plans with SLA and AI add-on | Change requests at hourly rates | Ongoing headcount whether or not there is work |
Which pitfalls do we design around?
The expensive mistakes are single-tenant shortcuts, billing built by hand, permissions scattered through the code, and no separation between environments. Each one costs more to fix than to avoid, and we avoid them by default.
What do we measure?
Every engagement is instrumented. These are the numbers you see in the dashboard and the monthly report, not claims on a website.
- Tenant onboarding time
- Billing accuracy
- Uptime and p95 latency
- Deployment frequency
Which technologies do we use?
- React / Next.js
- Node.js
- MongoDB Atlas / Postgres
- Redis
- Stripe / Razorpay
- AWS / Vercel
Who does the work?
An architect for the tenancy and billing model, two full-stack engineers, a designer, and a delivery lead, with an AI engineer added when the product includes AI features.
What do you need to bring?
A product owner, decisions on plans and pricing, the identity providers your customers use for SSO, a Stripe or Razorpay account, and a beta cohort ready to onboard. Existing designs or a design partner if the product needs a brand.
Frequently asked questions
India billing?
Razorpay, GST invoicing, INR and USD.
We already have a single-tenant app.
We migrate it to multi-tenant. See Modernization.
Do you build the marketing site too?
Yes, as part of launch scope.
Where does this fit?
SaaS / Cloud-native Application Development is part of our Digital Product Engineering line. Not sure yet? Start with Sprint Zero, a ten-day discovery whose fee is credited to this build. See all pricing or talk to an engineer.