Nada Sadek
Revenue-Critical Billing & Admin UI
I work on business-critical billing and admin surfaces in B2B SaaS specifically subscription state, access control and lifecycle-heavy flows where incorrect logic leads to revenue loss, failed renewals or trust issues.
What I focus on
- Billing & subscription flows: UI state that must match backend reality (trials, upgrades, downgrades, proration, invoices, failed payments, reactivation).
- Access & entitlements: preventing “active but blocked” / “inactive but accessible” scenarios, especially around payment failures and async updates.
- Admin tooling: complex roles/permissions, data-dense UIs and operational workflows where mistakes are expensive.
- Lifecycle-heavy UX: strict state transitions, validations and edge cases that break quietly over time.
How I typically engage
I’m currently packaging an audit-style engagement for billing/admin risk. Until that’s public, I take scoped work where I can own a defined surface area end-to-end and leave behind clear documentation (decisions, constraints, invariants and follow-ups).