Overview
What this challenge is about.
Multi-Tenant SaaS Backend with Postgres Row Security. Advanced challenge in code. Writing production code that solves real engineering problems, earn a block...
The Brief
What you'll do, and what you'll demonstrate.
Migrate from schema-per-tenant to single-schema multi-tenant with RLS, proving tenant isolation through an automated test suite.
This is not a coding exercise. It is the work a software engineer does between a Jira ticket and a merged PR. That distinction matters to every hiring manager who has seen candidates solve LeetCode problems and none who have shipped production code under real constraints.
When you finish, you will have something most graduates do not: a real-world deliverable, verified by Ewance, that you can show to a hiring manager and say "I did this. Here is the proof."
Earning criteria — what you'll demonstrate
- Design a multi-tenant data model that scales beyond schema-per-tenant
- Write and reason about Postgres Row Level Security policies
- Build a test suite that proves data isolation, not just functional correctness
- Measure the performance impact of RLS on a real workload
Program Fit
Where this fits in your program.
Sharpens the same skills your degree expects you to demonstrate.
Aligned coursework coming soon.
Skills
Skills you'll demonstrate.
Each one shows up on your verified credential.
- Multi Tenant Architecture
Apply multi tenant architecture to solve real industry problems and demonstrate production-level capability.
- Postgresql
Apply postgresql to solve real industry problems and demonstrate production-level capability.
- Row Level Security
Apply row level security to solve real industry problems and demonstrate production-level capability.
- Database Migrations
Apply database migrations to solve real industry problems and demonstrate production-level capability.
- Test Strategy
Apply test strategy to solve real industry problems and demonstrate production-level capability.
- Performance Testing
Apply performance testing to solve real industry problems and demonstrate production-level capability.
Careers
Career paths this challenge builds toward
Completing this challenge demonstrates skills that transfer directly to these roles: