Principal Mobile Developer

Fidelity•Westlake, TX

About The Position

Architects enterprise-scale Android applications for secure, real-time financial management and drives technical strategy across multiple teams. Designs and evolves complex application architectures, leads automation pipelines using DevOps and CI/CD practices, and guides adoption of Android patterns such as Clean Architecture, MVVM, and MVI. Establishes quality standards through testing with JUnit, Espresso, and Mockito; provides architectural governance, code reviews, and mentorship; and advances platform capabilities using Coroutines, Jetpack Compose, and Kotlin Multiplatform Mobile. Ensures scalability, performance, and maintainability across mission-critical mobile solutions. Develops tools, patterns, and reusable components; partners with platform squads and architecture to define engineering standards and tooling; and aligns architecture, user experience, and security with industry trends. Coaches teams in building architecturally compliant applications and promotes mobile-first outcomes and customer-focused experiences. Applies software engineering best practices, including object-oriented and functional programming, Test-Driven Development, and Clean Architecture for multi-module applications. Requires a bachelor's degree in a related field and five years of qualifying experience, or a master's degree in a related field and three years of qualifying experience. Experience must include native Android development with Kotlin and Java, modern Android UI frameworks, automated build tooling, AI-assisted development practices, and cloud-based mobile services in an enterprise software engineering environment. Fidelity will not provide immigration sponsorship for this position.

Requirements

Bachelor's degree in Computer Science, Engineering, Information Technology, Information Systems, Data Science, or a closely related field (or foreign education equivalent), plus five years of experience as a Principal Mobile Developer or in a closely related occupation; alternatively, a master's degree in one of those fields (or foreign education equivalent), plus three years of such experience.
Qualifying experience must include native Android application development using Kotlin and Java, modern Android UI frameworks, automated build tooling, AI-assisted development practices, and cloud-based mobile services in an enterprise software engineering environment.
Demonstrated expertise developing native Android applications using Kotlin and Java; developing UIs with Jetpack Compose and Material Design principles; and implementing MVVM with Android Studio, Gradle, and Jetpack libraries including ViewModel, LiveData, and Navigation.
Demonstrated expertise developing custom Gradle and Android Studio plug-ins to automate build and release processes, enforce coding and architectural standards, and improve developer productivity.
Demonstrated expertise using GitHub Copilot and Google Gemini to accelerate feature development, improve code quality, and enhance developer and end-user experience.
Demonstrated expertise architecting and implementing modular, scalable Android applications using Kotlin and Java in accordance with industry-standard design patterns and engineering best practices.
Demonstrated expertise using GitHub for source control, versioning, and collaborative code reviews.
Demonstrated expertise using Firebase services such as Authentication, Crashlytics, Cloud Messaging, or Remote Config to improve application stability, performance, and feature delivery.

Responsibilities

Develop tools, patterns, and reusable components to help create performant, resilient, robust applications.
Partner with platform squads and architecture to define mobile engineering standards, best practices, and tooling.
Align architecture, user experience, and security with industry trends.
Develop reusable components that accelerate engineering, improve application stability and resiliency, and reduce time to market.
Coach and mentor teams to help them build architecturally compliant applications.
Provide mobile thought leadership to advance mobile outcomes and facilitate a mobile-first approach.
Advocate for experiences that address the needs of digitally minded customers.
Coach teams on software engineering best practices, including object-oriented and functional programming patterns and Test-Driven Development.
Apply modern design patterns, including Clean Architecture, to build multi-module applications.
Architect enterprise-scale Android applications and drive technical strategy across teams.
Design and evolve application architectures and lead automation pipelines using DevOps and CI/CD tools.
Guide adoption of Android design patterns and establish testing and quality standards.
Provide architectural governance, conduct code reviews, and mentor engineers.
Advance platform capabilities using Coroutines, Jetpack Compose, and Kotlin Multiplatform Mobile.
Ensure mobile solutions are scalable, performant, and maintainable.