What shipping this changed
Access control was the product, so it was designed first.
The membership tier is the permission model
On most membership sites, billing and permissions are separate systems that drift apart — someone cancels and keeps their access for a month because a webhook failed quietly. We made the subscription state the single source of truth for what a member can see, so a lapsed payment closes the door on the next request rather than on the next cron run.
Role-based dashboards, not one dashboard with hidden bits
Hiding a button in the interface is not access control. Every role gets its data assembled server-side for that role, so a member cannot reach an administrator view by editing a URL or replaying an API call — the classic broken-access-control finding, and still the most common one in the OWASP Top 10.
Member data treated as regulated data from day one
A networking platform holds names, employers, phone numbers and meeting history — personal data under the DPDP Act whether or not anyone calls it that. It is encrypted at rest, reads are attributable to a named account, and retention was decided before launch rather than after the first data-subject request.
Built to survive the launch, not just to pass the demo
Membership platforms get their traffic in spikes: a launch, an event, a campaign. The build was load-shaped for that pattern, and the security review happened before the spike rather than in the middle of it.
The stack, and why
React and Next.js on the front, a server-rendered permission layer behind it. The stack was chosen because membership state has to be checked on the server for every request — a purely client-side app makes that either impossible or a lie.
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