Abhin S.

I build the mobile apps that can't fail: official Amazon Location Android SDKs, ONWARD Medical's ARC-EX (a first-of-its-kind FDA-cleared spinal cord stimulator), and Fibe, a fintech lending app with 10M+ downloads.

I'm usually hired when a project involves more than standard app screens: real-time systems, BLE/IoT, AI, payments, hardware integrations, maps, regulated workflows, or complex architecture that needs senior ownership.

𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞
▪ Android: Kotlin, Java, Jetpack Compose, MVVM, Clean Architecture
▪ iOS: Swift, SwiftUI, native SDKs, platform channels
▪ Cross-platform: Flutter and Kotlin Multiplatform (KMM)
▪ BLE, IoT & hardware: medical devices, robotics, wearables, connected products
▪ Real-time: WebRTC, Socket Programming, Twilio, video, low-latency chat
▪ Maps & location: geofencing, live tracking, routing, custom SDKs
▪ Fintech & payments: wallets, KYC, subscriptions, payment gateways
▪ AI features: streaming chat, character memory, LLM integrations, on-device ML
▪ App rescue: refactoring, crash fixing, performance tuning, architecture cleanup

𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐇𝐢𝐫𝐞 𝐌𝐞
① The app needs to scale: millions of users, peak traffic, complex state, performance-sensitive flows.
② The app cannot fail: medical, fintech, real-time, hardware, or business-critical workflows where reliability is non-negotiable.
③ The app is technically difficult: BLE devices, AI, native SDKs, WebRTC, payments, maps, or legacy code that needs expert handling.
④ The product needs senior ownership: architecture, technical decisions, tradeoffs, code quality, and delivery without heavy supervision.

𝐇𝐨𝐰 𝐈 𝐖𝐨𝐫𝐤
▪ I clarify the product goal, technical risks, and success criteria before writing code
▪ I break work into clear milestones, so progress is visible
▪ I share frequent updates and demo videos for major features
▪ I communicate tradeoffs directly instead of hiding problems
▪ I write production-grade code: clean architecture, reliable state management, testing, CI/CD readiness, maintainable structure

With 10+ years and 25+ shipped apps (three with 1M+ users), I've worked across fintech, healthcare, AI, robotics, BLE/IoT, real-time communication, and developer SDKs, including public contributions to Amazon Location Service under the AWS Geospatial organization.

If your mobile app is complex, high-value, scaling fast, connected to hardware, using AI, handling payments, or relying on real-time data, send me your goal, current stage, and biggest technical concern. I'll respond with a clear plan, a realistic timeline, and the safest way to move forward.