Top 2 Visual c developer Jobs in Los Angeles, Ca

Mobile Developer (iOS and Android)
Circadia Health —El Segundo, CA
- $120,000 - $240,000 a year
- Full-time
- HIPAA
- AWS
- Senior level
- Health insurance
- Dental insurance
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- Computer science
- 7 years
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- Health insurance
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Mobile Developer (iOS and Android)

Circadia Health -
El Segundo, CA

Quick Apply

Job Details

Full-time
$120,000 - $240,000 a year

Benefits

Stock options
Health insurance
Dental insurance
Paid time off
Vision insurance
401(k) matching
Gym membership

Qualifications

Authentication
Biometric systems
Cloud IoT services
JUnit
Android SDK
Mobile product development
iOS
WebSocket
IoT systems
Model-View-ViewModel (MVVM)
Coroutines
Android
TLS
Wi-Fi protocol
Espresso (UI test framework)
AWS
Flutter
Firebase
Bluetooth
Testing (iOS development)
GraphQL APIs
Design thinking
Jetpack
Swift
Core Data
React Native
Mockito
Mobile design

Full Job Description

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.

The Role

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/TypeScript.

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.

Core Responsibilities

iOS Development:

Build, develop, and maintain native iOS applications using Swift, SwiftUI, 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.

Android Development:

Build, develop, and maintain native Android applications using Kotlin and Jetpack Compose.
Implement modern Android architecture components (ViewModel, LiveData, 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.

API & Backend Integration:

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.

IoT & Device Connectivity:

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.

AWS Expertise:

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.

Test-Driven Development (TDD):

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.

Data Management:

Manage patient data efficiently on-device using local persistence solutions (Core Data, Realm, Room, SQLite).
Optimize data queries and synchronization strategies for performance, battery efficiency, and data integrity.
Implement secure local storage with encryption at rest for sensitive healthcare information.

Security and Compliance:

Implement and maintain security measures to protect sensitive healthcare data on mobile devices, including secure key storage (Keychain, Keystore), certificate pinning, and encrypted communications.
Ensure compliance with healthcare regulations, including HIPAA, and platform privacy requirements (App Tracking Transparency, Android privacy permissions).
Regularly update mobile applications to address vulnerabilities, deprecated APIs, and OS updates.

Documentation and Collaboration:

Create and maintain comprehensive documentation for mobile architecture, integration patterns, and release processes.
Maintain detailed change logs, version histories, release notes, and onboarding guides.
Manage CI/CD pipelines for mobile (Fastlane, Xcode Cloud, GitHub Actions) and coordinate App Store and Play Store releases.

Must-Have Qualifications

Advanced knowledge of Swift and the iOS SDK, including SwiftUI, UIKit, Combine, and async/await.
Advanced knowledge of Kotlin and the Android SDK, including Jetpack Compose, Coroutines, and Flow.
Strong understanding of mobile architecture patterns (MVVM, MVI, Clean Architecture) and dependency injection.
Experience integrating with RESTful APIs and real-time data sources (WebSockets, MQTT, server-sent events).
Understanding of AWS services relevant to mobile (Cognito, Pinpoint, IoT, MSK).
Deep understanding of user-centered design principles, design thinking methodologies, and usability best practices specific to mobile.
Knowledge of HTTP(S) as a protocol, including TLS, certificate pinning, and authentication flows.
Strong understanding of mobile security best practices, including secure storage, biometric authentication, and data protection.
Experience with TDD and mobile testing frameworks (XCTest, JUnit, Espresso).
Familiarity with App Store Connect and Google Play Console release workflows.

Nice-to-Haves

Experience with cross-platform frameworks (React Native, Flutter, Kotlin Multiplatform).
Proficiency in TypeScript or C++ for shared logic and bridging components.
Experience with Google APIs (Maps, Health, Firebase) and Apple frameworks (HealthKit, CoreBluetooth, CallKit).
Experience with mobile DevOps tooling (Fastlane, Bitrise, Xcode Cloud).
Design Acumen: Deep understanding of user-centered design principles, visual hierarchy, and interaction design fundamentals on mobile. Proficiency in translating complex healthcare workflows into intuitive, user-friendly mobile interfaces.
Experience with Bluetooth Low Energy (BLE) and IoT device communication on mobile platforms.
Detail-Oriented: Responsible for developing applications that handle sensitive healthcare data. Ability to maintain high levels of accuracy and attention to detail in all tasks.
Communication and Trust: Exceptional communication skills with the ability to collaborate effectively across teams. Ability to maintain the highest levels of confidentiality on a consistent basis.
Organization and Efficiency: Capable of managing multiple projects, release trains, and timelines simultaneously across two platforms. Highly organized, with a keen eye for detail in all tasks and projects.
Growth Mindset: Ability to learn from mistakes, reflect on them, and not repeat them. Curiosity and resilience in the face of setbacks, constantly seeking to improve and grow.

Technologies and Tools

Programming Languages: Swift, Kotlin, Objective-C (legacy), Java (legacy), TypeScript (optional)
iOS Frameworks: SwiftUI, UIKit, Combine, Core Data, CoreBluetooth, HealthKit
Android Frameworks: Jetpack Compose, Android Jetpack, Coroutines, Room, WorkManager
Cross-Platform (optional): React Native, Flutter, Kotlin Multiplatform
Backend Integration: REST, GraphQL, WebSockets, MQTT
Cloud: AWS (Cognito, Pinpoint, IoT, MSK), Firebase
Databases: SQLite, Core Data, Room, Realm
Testing: XCTest, XCUITest, JUnit, Espresso, Mockito
Version Control: Git
CI/CD: Fastlane, Xcode Cloud, GitHub Actions, Jenkins, CircleCI
Documentation: Confluence, Markdown
Monitoring: Firebase Crashlytics, Sentry, Prometheus, Grafana

Compensation & Perks

Base Salary: $120k – $240k base salary + meaningful employee stock options
Benefits: 100% company-paid medical, dental, vision; 401(k) with match; generous PTO
Wellness programs, such as gym membership reimbursement or access to virtual fitness classes
Mental health resources, such as access to counseling or meditation apps
Collaborative environment, working directly with designsers, engineers, scientists, and clinicians

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Quick Apply

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