What a SaaS build actually involves
A SaaS platform is three products wearing one interface: the application your customers use, the tenancy and billing layer that makes it a business, and the operational layer that keeps it running while you sleep. Skip any of the three and the other two eventually stop working.
We scope all three from the start — the application surface, the subscription and entitlement model behind it, and the deployment, monitoring and backup story underneath. That is the difference between a product you can sell and a demo that happens to be online.
Tenancy is an architecture decision, not a feature
Shared database with a tenant column is fast to build and cheap to run, until one enterprise customer demands data residency or a dedicated backup schedule. Database-per-tenant isolates cleanly but multiplies migrations and cost. Neither is correct in the abstract — the right answer depends on how many tenants you expect, how large the largest will be, and which compliance questions your buyers ask.
We settle this in the planning stage, on the record, with the trade-off written down. It is the single decision most expensive to reverse later.
Subscription billing, done properly
Billing is where SaaS projects quietly accumulate defects: proration on mid-cycle upgrades, failed-payment retries, trials that convert on the wrong date, entitlements that do not revoke when a plan downgrades. Each is small; together they are the reason finance stops trusting the product's numbers.
We integrate payment gateways including Razorpay, Stripe and PayPal, and we model entitlements separately from plans, so a customer's access is derived from what they are actually paying for rather than from a flag someone forgot to reset.
The stack we build on
React, Next.js, Angular or Vue on the front end; Node.js, Django or .NET on the back end; PostgreSQL, MySQL or MongoDB for data; Docker, Kubernetes and CI/CD pipelines for deployment on AWS, Azure or Google Cloud.
The choice within that set follows your team's existing skills and your compliance requirements, not our preference. Inheriting a codebase your own engineers cannot maintain is not a successful handover.
SaaS platforms we have shipped
GoalEnvision is a cloud-native SaaS platform for setting, aligning and tracking strategic goals across an organization. EZRater is a comparative rating platform for US surplus lines insurance: we built its carrier adapter framework, which returns premium indications from more than forty carriers in about eight seconds despite each one reading the ACORD standard differently. Three Lock Box is a secure, paperless escrow and payment platform serving the US construction industry.
Each has a full case study covering the problem, the architecture and what we built.