Mobile Developer; iOS and Android

Overview

Circadia Health is a rapidly scaling, Series B healthcare AI company transforming senior care through predictive analytics and agentic AI workflows across 300+ skilled nursing facilities and expanding into home health and hospice.

We are looking for a seasoned Executive Assistant to serve as a force multiplier across people, culture, and executive coordination. This is not a task‑execution role — it is an ownership role. You will keep the company running smoothly, our people well-supported, and our leadership well-prepared, while also handling select personal and logistical matters for the CEO with discretion and care.

The right candidate brings deep experience supporting complex executives and high‑growth organizations, a natural instinct for anticipating needs before they arise, and the entrepreneurial mindset to build systems and processes where none yet exist.

As a Mobile Developer at Circadia Health, you will play a critical role in designing, developing, and maintaining native iOS and Android applications that support sensitive healthcare platforms. You will be proficient in Swift for iOS and Kotlin for Android, with a deep understanding of mobile architecture patterns, performance optimization, and platform‑specific design guidelines. You will also be familiar with React/Type Script.

Your expertise in Test‑Driven Development (TDD), security best practices, and comprehensive documentation will ensure the reliability, scalability, and security of our mission‑critical mobile applications. Your work will directly impact patient care and enhance the efficiency of clinical staff by contributing to a platform that serves 30k+ patients daily through our Circadia Contactless Monitor (IoT devices)—a number expected to scale beyond 100k+ in the next 2 to 3 years.

• Build, develop, and maintain native iOS applications using Swift, Swift
  
  UI, and UIKit.

• Implement modern iOS architecture patterns (MVVM, MVI, Clean Architecture) and reusable components.

• Optimize app performance, memory usage, and battery consumption across iPhone and iPad form factors.

• Ensure adherence to Apple's Human Interface Guidelines and App Store submission requirements.

• Build, develop, and maintain native Android applications using Kotlin and Jetpack Compose.

• Implement modern Android architecture components (View Model, Live Data, Room, Navigation) and reusable UI patterns.

• Optimize app performance and ensure compatibility across a wide range of Android devices and OS versions.

• Ensure adherence to Material Design guidelines and Google Play Store submission requirements.

• Integrate mobile applications with RESTful APIs and real‑time services to support healthcare workflows.

• Collaborate with backend engineers to define API contracts and ensure efficient, secure data exchange.

• Implement robust offline support, caching strategies, and synchronization for intermittent connectivity scenarios common in clinical environments.

• Develop and maintain communication layers between mobile apps and the Circadia Contactless Monitor (IoT devices), including BLE, Wi‑Fi, and cloud‑based protocols.

• Work with AWS IoT and related services to enable real‑time device telemetry, configuration, and updates from mobile.

• Build interfaces for device pairing, provisioning, and diagnostics that clinical staff can use confidently.

• Integrate mobile applications with AWS services (Cognito, Pinpoint, IoT, MSK) for authentication, push notifications, and real‑time data streaming.

• Implement robust authentication and authorization protocols, including OAuth, JWT, and biometric authentication.

• Manage push notification infrastructure across APNs and FCM through AWS Pinpoint.

• Write unit tests and integration tests using XCTest (iOS) and JUnit/Espresso (Android) to ensure code quality and reliability.

• Implement UI testing with XCUITest and Android Espresso for end‑to‑end validation.

• Conduct code reviews and implement best practices for high coding standards across both platforms.

• Manage patient data efficiently…