11 / 14 — Full Stack / E-Commerce
Car Rental & Fleet Booking Engine
Booking platform for vehicle rentals with Stripe payments and optimistic locking against double-booking.
car-rental-fleet-booking-engine.build
Overview
What it does
Booking platform for vehicle rentals with Stripe payments and optimistic locking against double-booking.
The Problem
Why it needed building
Booking platforms that don't lock inventory correctly under concurrent requests end up double-booking the same vehicle to two customers at once.
The Approach
How it was engineered
Implemented optimistic locking around vehicle availability alongside Stripe for payments, with a search index built to stay fast across a large, fast-changing fleet.
The Outcome
Where it landed
Double-booking was eliminated entirely, checkout conversion rose 30%, and search stays sub-second across 5,000+ vehicles.