Software Engineer (Android Developer) - Eden Prairie, MN or Hartford, CT (Hybrid)

UnitedHealth Group•Eden Prairie, MN

7d•$72,800 - $130,000•Hybrid

About The Position

Optum is seeking an Android Developer to build and maintain a large-scale, customer-facing mobile application in the financial/health benefits space. This role involves working with a mature Android codebase that includes modern Kotlin development alongside established Java and XML-based patterns, with a continued evolution towards Jetpack Compose and cleaner architecture. The developer will collaborate with cross-functional teams to deliver reliable, secure, and accessible mobile experiences for users managing critical health and financial benefits. This is a hybrid-remote role, offering flexibility for those living near Eden Prairie, MN or Hartford, CT.

Requirements

Bachelor's degree in Computer Science, Information Technology, or a related field (OR 4+ years of professional software development experience)
3+ years of professional Android mobile development experience using Kotlin and/or Java
2+ years of experience with Jetpack Compose as well as traditional Android Views, XML layouts, fragments, activities, and ViewBinding
2+ years of experience with REST API integration using tools such as Retrofit, OkHttp, and JSON serialization
Professional experience working with Android Architecture Components (ViewModel, LiveData, Repositories) and lifecycle-aware development
Professional experience with Gradle builds, including build variants/flavors, dependency management, and mobile release configurations
Professional experience utilizing Firebase services (such as Analytics, Messaging, Crashlytics, and Performance Monitoring)
Professional experience implementing mobile security practices (such as encrypted storage, biometric authentication, permissions, or network security configurations)
Professional experience writing Android tests using JUnit, Mockito, Espresso, or similar mobile testing tools
Experience working in a collaborative team environment, maintaining and incrementally modernizing a large-scale codebase without disrupting production behavior

Nice To Haves

Experience with Hilt, KSP, RxJava 2, WorkManager, ML Kit document scanning, Datadog, Adobe Analytics/Target, Qualtrics, or LivePerson messaging
Experience working in banking, fintech, healthcare, benefits, insurance, or other highly regulated enterprise domains
Familiarity with CI/CD pipelines, SonarQube, code coverage tooling, ktlint, ProGuard/R8, and enterprise artifact repositories
Experience migrating legacy Java/XML Android screens toward modern Kotlin and Jetpack Compose architectures

Responsibilities

Build, maintain, and enhance Android features across account management, payments, transactions, receipts, document delivery, support, notifications, and secure webview flows
Develop mobile features using Kotlin and Java with Android Studio, Gradle Kotlin DSL, AndroidX, ViewBinding, XML layouts, and Jetpack Compose
Integrate front-end designs with REST APIs using Retrofit, OkHttp, Jackson/Gson, and RxJava
Architect scalable code using ViewModels, repositories, LiveData/Rx streams, and dependency injection using Hilt
Implement and support secure mobile experiences involving biometrics, encrypted storage, deep links, camera/document scanning, push notifications, and sensitive user data
Maintain app quality through writing and executing unit tests, instrumentation tests, linting, ktlint, SonarQube, Kover coverage, and CI/CD pipelines
Collaborate with product, design, QA, backend, security, and release teams in an enterprise mobile environment
Monitor and improve production stability using Firebase Crashlytics, Firebase Performance, Datadog RUM/session replay, and analytics tooling
Support release builds, product flavors, ProGuard/R8, signing, Firebase configuration, and Google Play Store readiness
Leverage enterprise-approved AI tools to streamline workflows, automate tasks, and drive continuous improvement