Building a SaaS product is fundamentally different from building a website or a standard web application. A SaaS product must serve thousands of customers simultaneously from a single codebase, handle subscription billing automatically, give each customer their own isolated data environment and scale without downtime as your user base grows. At Chulbul Design, we have built SaaS products for HR, inventory management, school administration, restaurant operations, clinic management and B2B analytics. We bring the architectural experience to make the right decisions at the foundation — decisions that are very expensive to change once 1,000 customers are on the platform.
Multi-Tenant Architecture — Built to Scale
Multi-tenancy is the defining characteristic of a SaaS product: many customers (tenants) share the same infrastructure, but each tenant's data is completely isolated from every other. We implement multi-tenancy correctly from the start — either shared database with tenant ID columns and row-level security, or separate schemas per tenant depending on your data sensitivity and compliance requirements. This choice has significant implications for query performance at scale, data isolation guarantees and the complexity of your backup and restore procedures. We make this decision with you based on your industry (healthcare and fintech typically need schema isolation; general B2B SaaS works well with row-level security).
A Pune HR SaaS startup: grew from 12 to 800 tenants in 18 months without a single architecture change — because the foundation was right.
- Shared DB + row-level security or schema-per-tenant
- Complete data isolation between customers
- Scales from 10 to 10,000 tenants without a rewrite
- Per-tenant custom domain support (CNAME)
Subscription Billing — Razorpay, Auto-Renewal & Dunning
SaaS billing is more complex than a one-time payment: you need plan selection, free trial management, automatic monthly/annual renewal, prorated upgrades when a customer changes plan mid-cycle, failed payment retry logic (dunning), tax invoice generation and MRR reporting for your own business tracking. We integrate Razorpay Subscriptions or Cashfree Subscriptions as the billing engine, build the plan management UI in your admin dashboard and configure automated dunning emails that recover failed payments before they become churned customers. Every customer gets a GST invoice automatically on each billing cycle — no manual work required.
A Delhi B2B SaaS company: automated dunning recovered 23% of failed payments that would previously have resulted in churn.
- Razorpay Subscriptions — auto-renewal built in
- Dunning — failed payment retry with email sequence
- Prorated upgrades / downgrades handled
- MRR, churn and ARR dashboard in admin panel
Role-Based Access, Admin Panel & Customer Onboarding
Every SaaS product needs three layers of access control: super admin (your team), tenant admin (your customer's administrator) and end users (your customer's team members). Each role sees different data and different controls. We implement granular role-based access control (RBAC) that lets tenant admins configure their own team permissions without contacting you. The super admin panel gives your team visibility into every tenant — usage metrics, billing status, support flags and impersonation for debugging. Customer onboarding flows — email verification, guided setup wizard, sample data loading and first-action prompts — are designed to reduce time-to-value so customers reach their "aha moment" within the first session.
A Mumbai edtech SaaS: 3-step onboarding wizard reduced support tickets by 60% — new schools set up independently without hand-holding.
- 3-level RBAC: super admin / tenant admin / user
- Super admin panel — all tenants, usage, billing
- Onboarding wizard — guided setup, sample data
- In-app tooltips & contextual help built in
30+
SaaS Products Built
10K+
Tenants on Our Platforms
99.9%
Uptime SLA
10+
Years SaaS Experience
SaaS Products We've Built
Vertical SaaS for specific industries or horizontal tools — we have experience across both.
HR & Attendance SaaS
Leave management, payroll, GPS attendance, appraisals and document management — used by 100–5,000 employee businesses.
Inventory Management
Multi-warehouse stock, purchase orders, vendor management, GST-ready invoicing and low-stock alerts.
Clinic & Hospital SaaS
Patient records, appointment scheduling, prescription management, lab reports and WhatsApp reminders.
School Management
Admission, fee collection, timetable, homework and parent communication — for schools from 200 to 5,000 students.
B2B Analytics & Reports
Custom dashboard SaaS that pulls data from client's systems and presents it with drill-down charts and scheduled PDF reports.
Restaurant & POS SaaS
Menu management, table orders, kitchen display, billing with GST and daily sales summary — for restaurant chains.
How We Build Your SaaS Product
Product Scoping
Target customer, core jobs-to-be-done, MVP feature set and what to explicitly leave out of v1 — documented in a product brief.
Architecture
Multi-tenancy model, tech stack, billing system, API structure and infrastructure sizing — decided before any design work.
UI/UX Design
Full Figma prototype of all user roles. Onboarding flow user-tested. Admin panel wireframed and approved.
Agile Build
2-week sprints with working demo at each sprint end. You test real functionality throughout — no big reveal at the end.
Launch & Scale
Beta with real customers, feedback loop, bug fixes, then full launch. Infrastructure auto-scales. Post-launch support included.
Your SaaS Idea —
Built to Last 10,000 Customers.
Right architecture from day one. Multi-tenant, subscription billing, scalable infrastructure. Free consultation to scope your MVP.