You will get a Supabase backend with authentication and role-tested Row-Level Security
Project details
I build production-grade Supabase backends — not backends that merely have RLS turned on, but ones where every policy has been tested against every real user role before I call it done. I designed and shipped a multi-tenant SaaS platform end-to-end (React Native/Expo + Supabase) supporting 8 distinct roles, where a director sees the whole team's data, a cleaner sees only their own tasks, and a property investor is scoped to exactly one property — all enforced at the database level, with none of that logic living in application code that could be bypassed.
Most "RLS setup" gigs stop at writing the policy. I go further: I probe it the way an attacker would — real REST calls under each role's actual token, confirming forbidden writes come back as 403 and permitted reads return exactly the scoped rows, nothing wider. That difference is what keeps a backend secure after launch, not just at review time.
I work fast because I've already solved this class of problem once, in production, for a real multi-tenant application — not from a tutorial.
Most "RLS setup" gigs stop at writing the policy. I go further: I probe it the way an attacker would — real REST calls under each role's actual token, confirming forbidden writes come back as 403 and permitted reads return exactly the scoped rows, nothing wider. That difference is what keeps a backend secure after launch, not just at review time.
I work fast because I've already solved this class of problem once, in production, for a real multi-tenant application — not from a tutorial.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Localization, SecurityWhat's included
| Service Tiers |
Starter
$200
|
Standard
$600
|
Advanced
$1,500
|
|---|---|---|---|
| Delivery Time | 1 day | 5 days | 10 days |
Number of Revisions | 1 | 2 | 3 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Frequently asked questions
About Myroslav
React Native Developer
Adeje, Spain - 7:13 pm local time
• Built the product end-to-end solo: bookings calendar, Gantt-style timeline, multi-property portfolio management, and a client-facing guest portal.
• Designed a multi-tenant RBAC system (8 roles) enforced with PostgreSQL Row-Level Security and SECURITY DEFINER RPCs on Supabase — no custom backend server needed.
• Implemented marketplace payments with Stripe Connect (direct charges to each host's own connected account) and subscription billing via RevenueCat (tiered plans, native IAP on iOS & Android).
• Built 14 Supabase Edge Functions for privileged/public operations: team invites, calendar (.ics) export/import, guest-facing public pages, scheduled cron sync, transactional email, and payment webhooks.
• Shipped two-way PMS calendar sync (iCal + a real Smoobu integration with HMAC-signed requests).
• Localized the app into 7 languages, added light/dark theming, tablet-responsive layouts, and offline caching.
• Set up crash monitoring (Sentry) and an automated EAS build/release pipeline for Android.
Stack: React Native, Expo SDK 54, Supabase (Postgres/Auth/RLS/Edge Functions), Stripe Connect, RevenueCat, i18next, React Navigation.
Steps for completing your project
After purchasing the project, send requirements so Myroslav can start the project.
Delivery time starts when Myroslav receives requirements from you.
Myroslav works on your project following the steps below.
Revisions may occur after the delivery date.
Review requirements & confirm scope
I review your answers to the requirement questions and confirm the exact scope before starting any implementation work.
Design the database schema
I create or adapt your Supabase project and design a clean PostgreSQL schema based on the roles and data you described.