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Tanay Bhattacharjee

@tanaybhattacharjee

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Senior iOS Engineer specializing in SwiftUI, IoT/BLE integration, and leading delivery of App Store apps.

India

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What I'm looking for

I’m looking for a Senior/Lead iOS or Mobile Software Engineer role where I can design scalable mobile architecture, lead engineering delivery, and ship global-impact apps—especially where IoT/BLE integration and strong CI/CD quality matter.

I’m a results-driven Senior iOS Engineer with 10+ years of experience designing, developing, and shipping high-impact mobile applications across health-tech, fitness, IoT, social networking, and e-commerce. I’ve delivered 15+ production apps to the App Store, including 8+ production iOS and Flutter applications at Utah Tech Labs, with average App Store ratings of 4.6★ and 50K+ combined downloads.

I bring deep expertise in Swift, SwiftUI, UIKit, and IoT integration with Core Bluetooth (GATT profiles) and MQTT, turning real-time device data into usable app experiences. I lead engineering with MVVM across teams, drive CI/CD using Fastlane and Jenkins, reduce release risk with XCTest pipelines, and maintain a strong quality bar—zero critical post-release incidents across all releases.

Experience

Work history, roles, and key accomplishments

Current

Lead iOS Engineer

Current

Utah Tech Labs

Apr 2021 - Present (5 years 3 months)

Architected and delivered 8+ production iOS and Flutter applications in health, fitness, and IoT, with strong App Store performance. Led BLE/IoT (Core Bluetooth GATT, MQTT) integration, established MVVM standards, and implemented XCTest-based automated testing in CI/CD using Fastlane and Jenkins.

Swift SwiftUI Flutter Dart iOS GATT MQTT WatchKit AppKit MVVM XCTest CI CD Fastlane Jenkins App Store Connect TestFlight REST APIs Third Party Integrations

Senior iOS Engineer

Appsbee

Sep 2019 - Mar 2021 (1 year 6 months)

Led end-to-end design and development of Bluetooth-first iOS fitness applications interfacing with Sole and Puck hardware via Core Bluetooth. Built fitness metric dashboards with HealthKit-aligned UX, implemented secure cloud synchronization, and supported multiple on-schedule iOS releases with Agile collaboration.

Swift iOS HealthKit Xcode Instruments Agile Scrum Performance Profiling Mentorship

iOS Engineer

Os4ed India Pvt. Ltd.

Aug 2015 - Aug 2019 (4 years)

Designed and shipped multiple iOS applications across e-commerce, cab-booking, food delivery, education, and IoT using Objective-C and Swift. Implemented Core Location for real-time GPS tracking and geofencing, integrated APNs, StoreKit, and payment gateways, and contributed to an open-source school management mobile platform.