US Time Cross-Platform App Developer

I’m building a new mobile application that must run smoothly on both Android and iOS, and I need an experienced developer who can collaborate with me during US-time business hours. Solid English communication is essential because we’ll be discussing architecture decisions, daily progress, and quick pivots in real time.

The core stack already in play leans on Java/Kotlin and Swift/Objective-C for the native layers, while shared business logic is handled in JS/TS. If you’re comfortable jumping between these environments—or introducing complementary frameworks when it makes sense—your expertise will be put to good use.

Because timing is critical, being based in the United States or Latin America is a plus; however, I’m open to motivated developers from anywhere who can consistently overlap with my schedule.

When you respond, concentrate on your experience tackling mobile projects of similar scope:
• the platforms and languages you’ve mastered
• examples of apps you shipped or maintained
• how you handled cross-platform challenges or performance tuning

Deliverables for our first phase:
• Initial build of the core mobile features compiled and running on both Android and iOS
• Well-structured, documented code pushed to the shared repo
• A brief hand-off note outlining next steps and any technical debt worth tracking

If you thrive in fast, collaborative environments and can demonstrate deep experience across JS/TS, Java, and Android/iOS ecosystems, I’d love to hear how you can help bring this app to life.