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Click here or scroll down to respond to this candidateCandidate's Name
Lead Android DeveloperEMAIL AVAILABLEPHONE NUMBER AVAILABLEProfile SummarySeasoned Android Application Developer with 12+ years of hands-on experience, specializing in both Kotlin and Java. I have published 7 apps on the Google Play Store. My deep understanding of Object-Oriented Programming (OOP) allows me to effectively apply design patterns such as Singleton, Adapter, Observer, Builder, and Factory while adhering to SOLID principles for a clean and maintainable codebase.Proficient in cutting-edge technologies such as Android Jetpack Compose and skilled in leveraging Continuous Integration tools like Jenkins and Travis CI, I excel in using Android Jetpack components, including ViewModel, LiveData, Room DB, WorkManager, and Jetpack Navigation. I thrive in AGILE development environments, contributing to SCRUM frameworks and employing various architectures like MVVM, MVP, MVC, and clean architecture.With expertise in reactive frameworks such as RxJava, RxKotlin, and RxAndroid, I ensure smooth integration of complex functionalities. My experience spans version control tools such as GIT, GitHub, and BitBucket, along with CI/CD pipelines utilizing Jenkins. I am adept at working with a range of Android third-party libraries, including Retrofit, Picasso, Dagger, Hilt, Glide, and payment gateways like PayPal, Stripe, and Android Pay.Compliance with Google application guidelines and adherence to best practices are at the forefront of my development process. I possess in-depth knowledge of Android frameworks, including Bluetooth, NFC, Location, Camera, Notifications, and Maps. My expertise in the Android SDK/NDK, multithreading (Coroutines, RxJava, AsyncTask), and device driver development enhances my ability to deliver high-performance applications.Experienced in implementing RESTful APIs using Retrofit with OkHttp, GSON, Jackson, and custom interceptors, I stay current with the rapidly evolving mobile and Android technology landscape. I am proficient in UI development, including Activities, Fragments, Custom Views, and Material Design, and skilled in performance tuning, crash reporting, and using tools like LeakCanary, Firebase Crashlytics, and profiling tools.With a strong foundation in TDD and testing methodologies using Espresso, JUnit, and Mockito, I excel in working on complex, multi-module projects, ensuring high-quality Android applications from inception to deployment.Technical SkillsLanguages: Java, Kotlin, .NET, C#, C++, HTML, CSS, JavaScript, Git, .NET MVC, Visual Basic, ReactJs, Python, Machine LearningDatabases: SQLite, Firebase DB, MongoDB, T-SQL, MS SQL, My SQLIDE: Android Studio, EclipseDesign Standards: Material DesignArchitectural Patterns: MVP, MVC, MVVM, CLEANDesign Patterns: Abstract Factory, Adaptor, Bridge, Builder, Command, Decorator, Interpreter, Monitor Object, Observer, Proxy, Singleton, VisitorProject Tools: JIRA, Kanban, Trello, Slack, Confluence, VSTSMethods: Test-Driven Development (TDD), Continuous Integration, Agile, Scrum, Pair ProgrammingVersion Control: Git, GitHub, BitbucketRESTful Web Services: REST, SOAP, XML, JSON, GSON, Moshi, Retrofit, Volley, OKHTTPThreading: Loopers, Loaders, Handlers, AsyncTask, Intent Service, RxJava, CoroutinesData Binding: Android Data Binding Library, ButterKnifeFrameworks: Firebase, Reactive-X, JetPackAndroid Security: SpongyCastle, Certificate PinningProfiling Tools: Android Profiler, Bluetooth Low Energy, Leak Canary, Firebase CrashlyticsMedia: ExpoPlayer, Media Player, Picasso, Glide, FrescoUnit Testing: Junit, Espresso, Robolectric, Mockito/MockK, RobotiumAnalytics: Mixpanel, FlurryDependency Injection: Dagger 1, Dagger 2, HiltPush Notifications: Google Cloud Messaging (GCM), Firebase Cloud Messaging (FCM)UI Implementation: Navigation Drawer, Widgets, UIAutomator, FloatingActionButtonMisc Libraries: JobScheduler, EventBusContinuous Integration: Bitrise.io, Jenkins, Hudson, Travis CI, GitLab CI/CDBuild: GradleReactive-X: RxAndroid, RxJava, RxCache, RxBluetoothJetPack: LiveData, Room, VIewModel, Download ManagerMisc: Schematic, MonkeyRunner, SyncAdapters, Ion, Kickflip, Parse, ParcelerWork ExperienceLead Android EngineerThe Goldman Sachs Group, Inc., New York City, NY, Oct 2023-PresentApp: Marquee TraderLink: https://play.google.com/store/apps/details?id=com.gs.mobile.trader HYPERLINK "https://play.google.com/store/apps/details?id=com.gs.mobile.trader&hl=en_US"& HYPERLINK "https://play.google.com/store/apps/details?id=com.gs.mobile.trader&hl=en_US"hl=en_USProject Summary: As a Lead Android Engineer at Goldman Sachs, I spearheaded the design and development of the Marquee Trader Android application, delivering a seamless trading experience for users to execute trades on a wide range of currency pairs and exchanges. Leveraging Kotlin, MVVM architecture, and Jetpack Compose, I built secure, modular, and high-performance modules, while driving continuous integration and test automation to ensure code quality and maintainability. Through collaboration with cross-functional teams, I ensured a robust and adaptable mobile interface, aligning with the fast-paced demands of global trading markets.Designed, developed, and maintained the Marquee Trader Android application, delivering a seamless and responsive trading experience for users.Implemented key features enabling users to execute trades and manage orders on hundreds of currency pairs and crosses directly through the mobile app, ensuring fast and efficient trading.Built secure and efficient modules for exchanging a wide range of deliverable spots and forwards, ensuring smooth and reliable transactions through the mobile interface.Executed and ran tests using the in-house automation software to ensure the apps stability and functionality across all releases.Developed configurable Kotlin functions for dynamic navigation bars using an SDK, adapting the apps interface based on user context for a more personalized experience.Implemented custom code to manage complex navigation actions provided by the SDK, ensuring users could easily return to previous locations or states when needed.Utilized the MVVM architecture to maintain a clear separation between data, UI, and business logic, improving modularity, testability, and maintainability of the apps codebase.Reviewed pull requests (PRs) to understand requirements and collaborate with team leads and developers, offering guidance and ensuring the code meets project expectations.Created Kotlin functions and external libraries with diverse data structures, incorporating default values and ensuring functionality through robust testing for both new and existing navigation features.Merged new tests remotely and triggered Continuous Integration (CI) pipelines to ensure up-to-date test coverage and maintain code quality.Increased code coverage across repositories to achieve a rate of 85% or higher, enhancing test completeness and reducing bugs.Designed and implemented user interfaces using Jetpack Compose, focusing on creating a smooth and engaging user experience through declarative UI development.Developed reusable and modular UI components with Jetpack Compose, adhering to best practices and design patterns to enhance scalability and maintainability.Utilized Agile tools such as JIRA, Confluence, Trello to manage user stories, track tasks, ensure effective collaboration with the team.Documented current code coverage and identified areas needing improvement to optimize test completeness and efficiency.Synced local development environments with repositories, ran Android and JUnit tests, and ensured code coverage met project standards.Created additional tests where necessary, merged them remotely, and triggered CI, incorporating feedback from code reviewers before finalizing each merge.Analyzed migration documentation to document current API levels and library dependencies, ensuring compatibility with new releases.Synced the local environment with the latest repository updates or obtained a fresh copy, ensuring that development environments were up to date with the latest codebase.Developed and delivered incremental features and improvements for the Android application in accordance with Agile sprint cycles, ensuring timely delivery of updates.Verified applications under the current API level, ran JUnit tests, and resolved any failing tests in collaboration with team leads.Set up the development environment with API 34, made incremental changes, and addressed any arising issues, ensuring smooth transitions between API versions.Re-ran JUnit tests as needed, created additional tests to cover gaps, and merged code remotely, triggering CI and ensuring test coverage remained intact.Addressed feedback from code reviews and awaited final approval before merging code into the development branch to maintain high-quality standards.Performed Release Candidate (RC) testing to ensure the final product met quality standards and was ready for deployment.Applied design patterns such as Singleton, Factory, Builder, and Dependency Injection, ensuring scalable and maintainable code across the application.Utilized UI Automator to perform automated UI testing across various Android devices and versions, ensuring consistent end-to-end testing of app interactions and workflows.Wrote and executed automated UI tests with Espresso, ensuring app functionality and responsiveness during user interactions and improving test reliability.Collaborated with cross-functional teams to ensure seamless integration and development practices across the app lifecycle, improving communication and efficiency between departments.Lead Android EngineerJetBlue Airways, New York City, NY, Aug 2022 Sep 2023App: JetBlue Book & Manage TripsLink: https://play.google.com/store/apps/details?id=com.jetblue.JetBlueAndroid HYPERLINK "https://play.google.com/store/apps/details?id=com.jetblue.JetBlueAndroid&hl=en_US"& HYPERLINK "https://play.google.com/store/apps/details?id=com.jetblue.JetBlueAndroid&hl=en_US"hl=en_USProject Summary: As a Senior Android Engineer at JetBlue, I architected and implemented advanced features such as the JetBlue Express Checkout and Virtual Queuing Boarding Zone, enhancing the overall customer experience with streamlined payment and boarding processes. I led the design and development of JetBlue's Android UI/UX using Jetpack Compose and Kotlin, ensuring a visually engaging and user-friendly interface. Additionally, I championed a Test-Driven Development (TDD) approach, optimized API integrations, and continuously improved app performance and stability, aligning with JetBlue's business goals and design standards.Architected and implemented advanced features such as JetBlue Express Checkout, allowing customers to make seamless payments with stored credit cards on a single screen, and Virtual Queuing Boarding Zone, which notifies users when their flight and seat are ready for boarding, using Kotlin Coroutines for efficient, responsive background processing.Developed and optimized travel-day essentials, including real-time flight information, boarding passes, and check-in reminders, displayed prominently on the home screen for an intuitive user experience. Leveraged Kotlin Flows to handle real-time updates seamlessly.Designed and refined trip management features, such as seat selection updates, itinerary changes, and adding extras, ensuring a smooth user experience through Kotlin Coroutines for responsive background processing.Developed custom packages in Flutter, harnessing functionalities and APIs from native Android and iOS platforms to extend the app's capabilities and enhance user experience.Collaborated with UI/UX designers to create user-friendly, visually appealing interfaces using Jetpack Compose, especially for time-sensitive features like boarding passes, enhancing performance and user engagement.Maintained consistency in the apps design language across all features and updates, adhering to JetBlues branding guidelines, utilizing Jetpack Composes theme management to ensure cohesive design.Implemented offline features using Room Database to enable users to access important information like boarding passes even without an internet connection, enhancing usability in low-connectivity environments.Implemented geolocation services powered by the Flutter Geolocator package, enabling accurate tracking of user location, and enhancing location-based functionalities within the app.Applied security best practices to protect sensitive user data such as payment details and personal identification, ensuring compliance with industry standards for secure app development.Led the design and implementation of JetBlues Android UI/UX using Jetpack Compose, Kotlin, and custom layouts, aligning with JetBlues design guidelines to deliver a dynamic and smooth user experience.Advocated for Test-Driven Development (TDD) by writing unit and UI tests with JUnit and Espresso, ensuring high-quality, bug-free code and reliable app performance.Monitored and fixed production crashes using Firebase Crashlytics, ensuring stability and reliability, significantly improving user satisfaction by quickly identifying and resolving issues.Established communication with RESTful APIs using Flutter's built-in HTTP packages, employing Futures and Streams for data retrieval.Optimized API interactions using Kotlin Coroutines with Retrofit and OkHttp for efficient communication with backend services, ensuring smooth and fast data processing.Implemented asynchronous programming with Kotlin Coroutines, improving app responsiveness and performance when interacting with RESTful web services and handling complex data streams.Led Agile practices such as SCRUM, sprint planning, retrospectives, and daily standups to ensure timely project deliveries, and collaborated across teams for smooth feature implementations.Collaborated with product managers, designers, and backend teams using JIRA and facilitated real-time communication with Slack and Teams to ensure efficient cross-department collaboration.Managed version control and CI/CD pipelines using GitHub and GitLab, maintaining a clean, maintainable codebase and streamlining the deployment process.Applied MVVM architecture to ensure the apps codebase remains scalable, maintainable, and testable, with Kotlin Coroutines enhancing the efficiency of background tasks and data handling.Utilized Jetpack Compose for declarative UI development and Kotlin for modern Android development, embracing the latest Android APIs to keep the app updated with the newest Android features.Integrated Omniture Tracking for real-time data collection, enabling business insights and analytics to inform decision-making.Provided technical support to quality analysts, ensuring thorough testing and alignment of new features with business use cases and customer needs.Continuously improved the app by staying updated with the latest Kotlin and Android development practices, ensuring JetBlues app remains competitive and delivers cutting-edge features.Mentored junior developers, reviewed code, and guided the team in following best practices, particularly with Kotlin, Coroutines, and Jetpack Compose, ensuring high performance and scalability in all Android solutions.Sr. Android DeveloperChevrolet, Detroit, Michigan, Oct 2020 Jul 2022App: myChevroletLink: https://play.google.com/store/apps/details?id=com.gm.chevrolet.nomad.ownership HYPERLINK "https://play.google.com/store/apps/details?id=com.gm.chevrolet.nomad.ownership&hl=en"& HYPERLINK "https://play.google.com/store/apps/details?id=com.gm.chevrolet.nomad.ownership&hl=en"hl=enProject Summary: As a Senior Android Developer at Chevrolet, I led the development of key features in the Chevrolet app, including vehicle health monitoring and remote commands. I implemented MVVM architecture, integrated Kotlin Koin for dependency management, and ensured seamless user experiences across Android 9 and above. My role involved enhancing functionality with audio/video playback, secure BLE connections, and efficient background processing, while also collaborating closely with UX/UI designers and maintaining high code quality through rigorous testing and optimization.Led the design and implementation of critical features for the Chevrolet app, ensuring robust, scalable, and maintainable code while maintaining compatibility with Android 9 and above.Integrated essential functionalities, including scheduling service appointments, requesting roadside assistance, and sending navigation destinations to the vehicles system, providing a seamless user experience.Developed features allowing users to check fuel levels or charge status, monitor vehicle health, and perform remote commands such as locking/unlocking doors and starting the vehicle.Initiated and led the migration from MVP to MVVM architecture, leveraging the Android Data Binding Library for improved maintainability and scalability of the codebase.Integrated Kotlin Koin for dependency injection, structuring dependencies into modular components for better management and resolution.Designed and implemented audio and video playback features, ensuring seamless integration with the vehicles infotainment system using AVFoundation for media management, playback control, and streaming.Optimized asynchronous code execution using Kotlin Coroutines for efficient REST API consumption, improving performance and simplifying concurrency design.Implemented security protocols for BLE connections to ensure data protection and prevent unauthorized access, facilitating synchronization between the app and vehicle for real-time status updates and remote commands.Adopted WorkManager API to replace JobDispatcher, optimizing background processing tasks like downloading flight details and syncing analytics data for improved efficiency.Developed RecyclerViews and corresponding adapters to display lists based on UI/UX design specifications, ensuring smooth and intuitive user interaction.Collaborated with UX/UI designers, backend developers, and QA teams to define project requirements, prioritize features, and ensure seamless integration, following Agile SCRUM methodology for effective project management.Guided application technologies and supported Android versions in collaboration with the lead, ensuring alignment with project goals and the latest technological advancements.Developed a secure payment module using OAuth2 tokens, Client Metadata ID, and PayPals API, ensuring efficient order processing and secure payment handling.Maintained BLE communication protocols within the app, enabling features like phone-as-a-key and remote vehicle access, ensuring stable connections and data transfer between the app and the vehicle.Led cross-platform development using React Native, ensuring compatibility across both Android and iOS. Built efficient mobile apps using JavaScript and React Native components for a scalable mobile experience.Collaborated closely with the iOS team to ensure alignment and consistency across platforms, enhancing the overall user experience.Implemented unit testing with JUnit and Mockito, mocking necessary dependencies to ensure high code quality and reliability through rigorous testing.Conducted performance profiling and optimization for audio and video features, ensuring smooth playback and minimal latency across various Android devices and vehicle models.Integrated native modules into React Native applications for accessing platform-specific features, utilizing Java/Kotlin for Android-specific requirements and seamless integration with React Native components.Enhanced user interface design using Fragments to create dynamic, scalable UIs, improving overall app usability and aesthetics.Utilized LeakCanary to detect and eliminate memory leaks, ensuring optimal app performance and stability across various Android devices.Sr. Android Mobile App DeveloperETSY, Brooklyn, New York City, NY, Aug 2018 Sep 2020App: ETSY - Shop & Gift in StyleLink: https://play.google.com/store/apps/details?id=com.etsy.android HYPERLINK "https://play.google.com/store/apps/details?id=com.etsy.android&hl=en_US"& HYPERLINK "https://play.google.com/store/apps/details?id=com.etsy.android&hl=en_US"hl=en_USProject Summary: As a Sr. Android Mobile App Developer at Etsy, I led the development of key features like "Gift Mode" and integrated the Etsy Family loyalty program, ensuring a seamless and engaging user experience. I collaborated with designers and backend teams to create intuitive UIs and implemented scalable architecture using Android Jetpack, Kotlin, and Java. I also integrated Firebase for real-time data synchronization and enhanced app functionality through third-party APIs and Flutter.Led the development and implementation of key app features such as Gift Mode, ensuring an intuitive and seamless user experience with efficient functionality.Spearheaded the integration of the Etsy Family Loyalty Program, enabling users to easily access membership benefits and providing a smooth in-app experience.Collaborated closely with backend and loyalty program teams to define integration requirements, ensure seamless API integration, and deliver a high-quality loyalty program experience.Worked with designers to develop intuitive, visually appealing, and responsive user interfaces that helped users discover and purchase thoughtful, unique gifts.Utilized Android Jetpack components such as Architecture Components and Annotations to implement a scalable, maintainable, and efficient codebase architecture.Integrated Firebase services for real-time data synchronization, user authentication, and secure access to loyalty membership features, ensuring data integrity and user security.Integrated third-party APIs and services into Flutter applications, ensuring smooth functionality and synchronization. Conducted unit and integration testing using Flutters built-in framework to ensure reliability and performance.Implemented digital card management, allowing users to view and redeem their Etsy Family loyalty card directly from the app for in-store redemptions.Leveraged AndroidX widgets and AppCompat libraries to create intuitive UIs for easy access to loyalty program benefits, enhancing overall user interaction.Augmented the app's performance utilizing tools like React Native Performance and debugging tools like React Native Debugger, identifying, and resolving any performance bottlenecks to provide a smooth and responsive user experience.Improved app performance with React Native Hermes and Redux state optimization.Developed a RecyclerView with lazy image loading using Glide, optimizing image loading performance for a smoother user experience.Led development of loyalty program features, focusing on digital card management and in-store redemption through the app.Utilized Kotlin and Java along with Android Jetpack to implement core app functionalities, ensuring compatibility and performance across devices.Ensured secure coding standards with React Native Async Storage, Keychain, and Redux-Saga for data handling.Designed and implemented responsive UIs using Flutters widget-based framework, collaborating with designers to translate Figma/Sketch designs into engaging, interactive interfaces.Integrated Google Cloud Messaging (GCM) for push notifications, allowing users to receive updates on membership benefits and reminders.Employed Glide and Picasso for efficient image loading and rendering of digital membership cards, ensuring fast, high-quality image processing.Implemented reactive programming with RxJava to manage asynchronous operations, improving data handling and user interaction with loyalty program features.Utilized Android WorkManager for scheduling background tasks related to membership benefits and notifications, ensuring timely and reliable updates for users.Integrated Google Maps SDK to enable location-based services, helping users locate nearby Etsy partner stores for in-store redemptions.Enhanced visual appeal of loyalty features with Lottie animations, improving user engagement and interaction.Collaborated with backend developers to define APIs and data models for seamless integration of loyalty program functionalities, ensuring smooth communication between frontend and backend systems.Implemented logging and monitoring using SLF4J, tracking user interactions and performance metrics to optimize loyalty program features and app performance.Sr. Android DeveloperFrontier Communications, Dallas, Texas, May 2016 Jul 2018App: MyFrontierLink: https://play.google.com/store/apps/details?id=com.frontier.selfserve HYPERLINK "https://play.google.com/store/apps/details?id=com.frontier.selfserve&hl=en_US"& HYPERLINK "https://play.google.com/store/apps/details?id=com.frontier.selfserve&hl=en_US"hl=en_USProject Summary: As a Senior Android Developer with Frontier Communications, I developed key features in the MyFrontier app for managing services, including plan upgrades, billing, and personalized rewards. I enhanced customer interactions with real-time order tracking, direct messaging, and integrated troubleshooting tools. Additionally, I implemented a virtual assistant for 24/7 support, optimized the UI with consistent theming, and ensured secure login options using Google API, custom SDKs, and two-factor authentication. Collaborating closely with UI/UX and DQA teams, I prioritized seamless user experiences and efficient bug resolution.Developed features for managing Frontier services, including upgrading plans, making payments, and accessing billing history from the MyFrontier app.Designed real-time order tracking, installation updates, and direct messaging functionality to enhance customer service interactions.Implemented personalized rewards, discounts, and offers, allowing users to access exclusive deals and free items through the app.Integrated troubleshooting tools for checking outages, tracking trouble tickets, and rebooting gateways or TV set-top boxes.Developed a virtual assistant and Help Center to provide users with 24/7 support and faster issue resolution.Ensured secure account management features, including password resets, notification preferences, and contact information updates.Created an internal library to ensure consistent UI components and improve maintainability.Integrated Google API and a custom SDK for secure user authentication.Developed UI features for convenient and secure login options.Implemented WebView for added security.Designed a two-panel layout for improved user experience.Effectively managed Git commands, including reverted merges.Integrated Google Maps API to display contact addresses.Refactored modules using VIPER for better maintainability and scalability.Implemented BroadcastReceiver for timely updates.Utilized SharedPreferences for personalized experiences.Migrated from Google Cloud Messaging to Firebase Cloud Messaging.Implemented local storage using SQLite.Worked closely with UI/UX and DQA teams for optimal user experiences and efficient bug resolution.Leveraged Glide for efficient image handling.Integrated RESTful data consumption using Retrofit, OkHTTP, GSON, Jackson, and a custom interceptor.Maintained consistent and responsive UI layouts using Fragments.Managed the JIRA backlog and collaborated with the offshore team for efficient project execution.Streamlined theming, optimized tablet layout, and provided secure login options.Implemented two-factor authentication and leveraged federated login.Used Git for version control, refactored code using VIPER, and collaborated effectively with teams.Utilized Glide for image management and implemented local data storage.Sr. Android DeveloperTD Bank, Cherry Hill, New Jersey, Mar 2014 Apr 2016App: TD Bank (US)Link: https://play.google.com/store/apps/details?id=com.tdbank HYPERLINK "https://play.google.com/store/apps/details?id=com.tdbank&hl=en-US"& HYPERLINK "https://play.google.com/store/apps/details?id=com.tdbank&hl=en-US"hl=en-USProject Summary: As a Senior Android Developer at TD Bank, I designed, developed, and maintained core features for the TD Bank app, focusing on seamless user experiences for personal and business accounts. I implemented modern UI using Jetpack Compose, Kotlin, and Java, while integrating key banking functionalities like mobile check deposits, Zelle transfers, and card management. I optimized app performance, enhanced security protocols, and introduced AI-driven features like the Virtual Assistant for 24/7 customer support, ensuring a smooth, secure, and personalized mobile banking experience.Design, develop, and maintain new and existing features for the TD Bank app, ensuring seamless user experiences across both personal and business accounts.Implement modern Android UI elements using Jetpack Compose, Kotlin, and Java, ensuring the apps design is intuitive and visually appealing with a "fresh new look."Develop and integrate key banking functionalities, including viewing account balances and activity, depositing checks through mobile, and paying bills to cards, companies, and individuals.Implement features for locking/unlocking credit, debit, ATM cards and integrating digital wallet functionalities for adding cards.Support money transfer features, such as Zelle integration for peer-to-peer payments and internal account transfers.Enable users to customize TD |
