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Stealth Startup - MedTech

Mobile Dev

2022 - 2024

Built multiple apps, packages, and more for a medtech startup that is working on cutting-edge BLE wearable tech with proprietary sensors for a multitude of biomarkers.

Clients included Samsung, the rainforest company, (secret company, def not the fruit company), and a few others.

💪 Contributions

  • Multiple full-fledged apps (iOS/ Android) built from concept to release.
  • MVPs - To show investors data collected, key features, etc.
    • Fastest MVP was done in exactly 18 hours over a weekend
  • Packages that range from complete UI libraries to enhanced logging and or authentication solutions.
  • Flutter to Native and vice versa (iOS primarily).
  • Helped kick-start wearable communication for Android using JNA and a few other native libraries for BLE communication.

🛠️ Tools & Technologies

  • Dart/ Flutter - For most apps built
  • Swift/ Objective-C - For interoperability. Hardware ARM64 and x86_64 binary libraries were built for native and tapped into them using MethodChannels to allow communication with Dart/ Flutter.
  • Kotlin - For Android interoperability
  • A lot more like Figma, Fastlane, DataDog, AWS, setting up Hugo pages for documentation, etc…

Edge - BLE Wearable App

  • Overhauled the wearable app to allow for displaying of near real-time biomarker data
    • Includes crafting widgets and charts optimized for near real-time MQTT data streams
  • Interoperability of Flutter<>Native (iOS primarily) additions
    • Helped with the addition of the SpO2 and HRV biomarker reading functionality

 

Data Lab - Built in 18 hours

  • MVP created in 18 hours over a single weekend in time for an investor meeting.
    • No LLMs/ AI used so can probably do it even faster now
  • App showcases a newly built developer API and the wearable’s data collection capabilities.
  • Was promised an olive oil 🫒 bottle as a “Thank You” for the crunch but never received it!!

Research Editor

  • Allows researchers to conduct clinical studies.
  • Uses App groups to allow for communication between multiple apps using interprocess communication (IPC).
  • Used to test the efficacy of different AI algorithms and the biomarker data collected by the wearable.
  • Had to follow stringent HIPAA, IRB, and FDA compliance frameworks.

Study Logger

  • Clinical studies app wherein enrolled subjects can log a multitude of tasks about their daily activities while wearing the wearable.
  • Delivered a complete app from a paragraph to design prototypes and later App Store and Google Play Store releases.
  • Testing with code coverage over 98%.

Cogni - Package

  • Helped build a custom authentication solution using JWT tokens after struggles with AWS Amplify.

Flutter Favorites

  • Bloc and Hydrated Bloc - For state management.
  • go_router - No comment needed.
  • Pigeon - For interoperability.
  • Patrol - For testing.
    • Mocktail - For mocks.
  • fl_chart - For stunning charts.
  • json_serializable - Customizability makes it much better than most alternatives tested, now use freezed
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