Principal Mobile Developer

Position Description:

Builds, debugs, and supports mobile applications across iOS and Android platforms. Designs, implements, and maintains automated user interface (UI) tests using XCUI (iOS) and Espresso (Android), ensuring robust validation and reliability. Leverages Xcode with Swift and Android Studio with Kotlin to deliver high-quality software in Agile environments. Integrates accurate, scalable test suites into Continuous Integration and Continuous Deployment (CI/CD) pipelines, using tools -- Jenkins, Artifactory, and SonarQube to enable autonomous, high-performance application delivery. Collaborates with mobile development teams through code reviews, pull requests, and pair programming to uphold code quality and consistency. Builds modern, scalable, and future-ready applications that comply with architectural standards. Partners with architecture, security, and User Experience Design (UXD) teams to deliver performant, accessible mobile applications.

Primary Responsibilities:

• Builds accessible experiences on iOS and Android.
• Mentors other iOS and Android developers in a collaborative and team-based organization.
• Supports performant and collaborative engineering teams using modern development principles trunk-based development, feature toggles, and branch by abstraction.
• Partners with platform squads to define mobile engineering standards, best practices, and tooling.
• Provides insights to advance mobile outcomes and facilitates a mobile-first approach.
• Serves as mobile advocate for the adoption of experiences that solve the needs of customers.
• Analyzes user needs and software requirements to determine feasibility of design within time and cost constraints.
• Confers with data processing or project managers to obtain information on limitations or capabilities for data processing projects.
• Confers with systems analysts, engineers, programmers and others to design systems and to obtain information on project limitations and capabilities, performance requirements, and interfaces.
• Consults with customers or other departments on project status, proposals, or technical issues, for software system design or maintenance.
• Develops and executes software testing and validation procedures, programming, and documentation.

Education and Experience:

Bachelor’s degree in Computer Science, Engineering, Information Technology, Information Systems, or a closely related field (or foreign education equivalent) and five (5) years of experience as a Principal Mobile Developer (or closely related occupation) developing and deploying iOS and Android applications in a financial services environment, using SwiftUI, Swift, Jetpack compose, Kotlin, and Jenkins.

Or, alternatively, Master’s degree in Computer Science, Engineering, Information Technology, Information Systems, or a closely related field (or foreign education equivalent) and three (3) years of experience as a Principal Mobile Developer (or closely related occupation) developing and deploying iOS or Android applications in a financial services environment, using SwiftUI, Swift, Jetpack compose, Kotlin, or Jenkins.

Skills and Knowledge:

Candidate must also possess:

• Demonstrated Expertise (“DE”) developing the full-cycle iOS  using Swift, SwiftUI, and Objective-C; building scalable, testable applications with XCUITest or XCTest, using Model-View–ViewModel (MVVM), View, Interactor, Presenter, Entity, and Router (VIPER), and Clean Architecture, and Test Driven Development (TDD); and designing responsive UIs in Figma and Adobe XD within Agile and Scrum workflows.
• DE designing and developing Android mobile applications, using Java, Kotlin, Jetpack Compose, and Espresso with Agile and Scrum execution via Jira; and delivering scalable, maintainable applications using MVVM, VIPER, and Clean Architecture supported by Git, Azure, Jenkins, and Android Studio.
• DE working with mobile DevOps for iOS and Android by configuring CI/CD pipelines with SonarQube, Jenkins, Shell scripts, Fastlane, and GitHub to analyze code quality, automate builds, manage code signing, execute tests, and deploy seamlessly to TestFlight, Google Play, App Center, and Azure Cloud environments.
• DE maintaining application stability by monitoring health and crashes with Firebase Crashlytics, AppDynamics, and New Relic; optimizing performance via Xcode, Android Studio native profiling tools, and Charles Proxy; and safeguarding data through security reviews and static analysis with SonarQube or Veracode.

Salary:  : $171,600.00 to $181,000.00 /year.

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Fidelity’s Onsite Working Model
Fidelity is transitioning to a full-time onsite working model through a phased rollout across regions and roles. Currently, some roles and locations require 100% onsite presence, while others require less. Onsite expectations are likely to evolve as the rollout continues. This transition does not apply to fully remote roles.

Please be advised that Fidelity’s business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.