Available to hire
Android Developer with 4+ years of experience building scalable, high-performance Android applications using Kotlin, Java, Jetpack Compose, and Android Jetpack. Skilled in MVVM, Clean Architecture, Kotlin Coroutines, Flow, REST API integration, and Firebase services, with strong emphasis on performance optimization, debugging, unit testing, secure development, and production support across the SDLC.
Experienced delivering user-centric mobile solutions in Agile teams, collaborating with cross-functional stakeholders, and leveraging AI-assisted tools (e.g., GitHub Copilot and other AI coding assistants) to improve code quality and development efficiency.
Skills
Language
Work Experience
Android Developer at Walmart
October 1, 2024 - PresentDeveloped scalable Android applications using Kotlin, Jetpack Compose, MVVM, and Clean Architecture, delivering 20+ production features that improved application performance and usability. Built reusable UI components with Jetpack Compose and Material Design 3, reducing duplicate code by 40% and accelerating feature delivery across modules. Optimized REST API integration with Retrofit/OkHttp, coroutines, and Flow, reducing average response time by 28%. Implemented secure authentication, encrypted local storage, and biometric authentication (Android Keystore, OAuth 2.0). Automated CI/CD with GitHub Actions, Gradle, Jenkins, and Firebase App Distribution, reducing deployment effort by 50%. Collaborated with product, UX, QA, and backend teams in Agile Scrum, resolving production issues and improving stability.
Android Developer at Helsy Infotech Private Limited
January 1, 2022 - July 1, 2023Built native Android applications using Kotlin, Android SDK, XML, and Jetpack libraries, delivering 10+ client projects across healthcare, education, and business. Designed scalable architecture using MVVM and Clean Architecture with Repository Pattern and SOLID principles, improving maintainability and reducing enhancement effort by 35%. Integrated REST APIs using Retrofit and coroutines, and implemented offline persistence with Room to reduce retrieval time by 30%. Improved quality with JUnit/Mockito/Espresso, reaching 80% coverage and reducing production defects by 30%. Integrated Firebase Authentication, Crashlytics, Analytics, and FCM to improve monitoring and engagement and supported 95% on-time project delivery.
Jr. Android Developer at Coforge
October 1, 2020 - December 31, 2021Delivered Android application features using Kotlin, Java, Android SDK, XML, and RESTful APIs, contributing to 8+ feature releases. Implemented reusable UI layouts and integrated backend APIs, improving UI consistency and reducing UI defects by 25%. Optimized performance by profiling memory, eliminating resource leaks, and refining network operations, reducing startup time by 20%. Participated in Agile Scrum collaboration, including code reviews, debugging, testing, and production deployments with 95% sprint completion.
Education
Master of Engineering in Computer Engineering at University of Guelph
August 1, 2024 - July 27, 2026Qualifications
Industry Experience
Software & Internet, Healthcare, Education
Skills
Hire a App Developer
We have the best app developer experts on Twine. Hire a app developer in Guelph today.