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Volume VI · Mobility · Safety systems

The Watchful Road

Real-time monitoring of drivers and passengers for a US ridesharing platform, on iOS and Android, where safety is a live signal rather than a report.

Problem
A US rideshare platform needed live driver and passenger monitoring on iOS and Android.
Outcome
Real-time monitoring built across Flutter, Kotlin, Swift and .NET, shipped to both app stores.
Diagram: A US rideshare platform needed live driver and passenger monitoring on iOS and Android.
Principal
Posh Rideshare · via Etechflow
My role
Mobile application engineer
Period
2025
Tech used
Flutter · Kotlin · Swift · .NET

Chapter 1 · The problemThe Thesis

In mobility, safety is a property of the present tense. A trip that was safe five minutes ago tells you nothing about now.

Chapter 2 · The client & my roleThe Catalyst

Posh Rideshare is a US ridesharing and community platform. I built its real-time driver and passenger monitoring system for iOS and Android, working across Flutter, Kotlin, Swift, and .NET.

Chapter 3 · The hard partThe Friction

Continuous monitoring on a phone means negotiating with two operating systems that both want to put your app to sleep. Cross-platform code can only go so far; the last mile is native.

The work therefore spanned the stack: Flutter for the shared product, Kotlin and Swift where each platform drew its line, and .NET on the backend, then through store review and into release.

“Cross-platform takes you most of the way. The last mile is always native.”

Chapter 4 · The resultThe Monument

Monitoring shipped to both stores as part of the product's release cycle, giving the platform a live view of the people it is responsible for.

2
Platforms: iOS and Android
4
Languages across the chain
Live
Driver and passenger monitoring