Rahul Sardhara LinkedIn | 829-131-8842 | rahul.sardhara07@gmail.com Profile ________________________________________________________________________________________________ Senior Android Developer with 7+ years of experience in building high-performance native Android applications, using Java and Kotlin, and specializing in developing scalable apps with efficient UI, REST API integration, IoT functionality, and mobile security, including SSL Pinning. Successfully delivered and maintained 10+ apps in Healthcare, Banking & Insurance, Real Estate, and Instant Messaging industries with 500K+ daily active users across the US. Technical Skills ________________________________________________________________________________ Android Technologies - Java, Kotlin, Android, Jetpack Compose (beginner), Android SDK. Architectures - MVVM, Clean Architecture, Multi-Module Architecture, MVP, Low Level Design. Jetpack Library Components - View/Data Binding, Hilt, Coroutines, LiveData, Flow, Navigation Graph, Work Manager. Databases - S Ǫ Lite, RoomDB. Mobile Security Practices - Data Encryption using AES-256, RSA, SSL Pinning, Proguard & R8, Play Integrity API. Web Technologies & Tools - Git, JIRA, FIGMA & Zeplin. Experience ___________________________________________________________________________________ Senior Software Developer (5 yrs 8 mos) OSP Labs (US Healthcare Sector) Dahisar/Mumbai 10/2019 - Current ● Led the design and development of five Android apps—Rolling Strong, HomeHealthPRO, Amity Group, Vital Care, and TrackWage, etc—spanning healthcare, wellness, and workforce domains, improving feature delivery, performance, and security for 100K+ users. ● Streamlined release cycles and minimized deployment issues by integrating remote-configurable feature flags, enabling real-time control of force updates, feature access, and safe rollbacks. ● Boosted performance across core modules (Login, Messaging, Scheduling, Vitals) by optimizing UI rendering, flattening layout hierarchies, implementing response-level API merging, and reducing redundant network calls. ● Ensured platform-wide data security by enforcing AES-256 encryption, SSL pinning, and Play Integrity API, especially across HIPAA-sensitive healthcare apps. ● Enabled real-time communication in Vital Care through secure video/audio calling using Twilio and Sendbird, driving better care coordination between patients and doctors. ● Standardized architecture using MVVM, Hilt/Dagger2, Coroutines, and Room DB, delivering scalable, testable, and maintainable codebases across all products. Tech Stack: Kotlin, Java, Coroutines, RxJava, MVVM, Dagger2, Hilt, Retrofit, Glide, Timber, Room DB, Firebase, Proguard & R8, SSL Pinning, AES-256, RSA, Google Play Integrity API, GitHub, Jira. App Link - Rolling Strong | Home Health Pro | Amity Group _____________________________________________________________________________________________________ Android Application Developer ( 6 mos) Insomniacs (Product Base) Chakala, Mumbai 05/2019 - 10/2019 ● Contributed to the development of Repeople, a product platform designed to unify Society, Project, Grievance, Staff, and Facility Management for realtors, enhancing engagement, referrals, and overall customer experience. ● Reduced Gradle build-time by more than 25% by migrating from monolithic to modular architecture, resulting in saving 10+ hours of development efforts per day. ● Built and optimized key modules, including Visitor Management, ERP, Bill Payments, Document Vault, and Lead Management, ensuring smooth integration and intuitive user flows across the app. ● Migrated the Android code base to suit MVP architecture which made the code more maintainable and the crash free sessions have increased from 92% to 99%. ● To improve app performance took multiple steps which included revamping of xml layout to flat hierarchy, unregistered the listeners, delegatingthe the parsing task to worker threads, replacing Picasso with Glide and added the exception handling. Tech Stack: Java, Retrofit, Glide, MVP, ButterKnife, GitHub, Jira. App Link - Raunak Group | RaunakGroup Manager | Ronak First Hello | Shaligram Security ________________________________________________________________________________________ Mobile Application Developer ( 8 mos) Sanda Group (Product Base) Chakala, Mumbai 08/2018 - 04/2019 ● Engineered secure PIN-based login and registration workflows using SHA-1 , AES , and RSA encryption algorithms to safeguard user credentials and session data. ● Implemented media files upload, download, and offline storage of failed media chat using Retrofit Multipart and SQLite. ● Developed a custom camera module leveraging the Camera1 API and SurfaceView to enable in-app photo capture tailored to chat needs. ● Owned critical production support tasks—resolving bugs, addressing real-time issues, and delivering clean, modular, and testable code aligned with best practices. Tech Stack: Retrofit, OkHttp, JSON, Glide, XML, Android Design, Fabric Crashlytics, Jira, GitHub App Link - Suraxa | Siccura Work | Zulka _________________________________________________________________________________________ Android Application Developer (1 yrs 3 mos) Mobilestyx Consulting Thane, Mumbai 07/2017 - 09/2018 ● Learned and developed multiple UI screens for the iNeo Track App and iPruATom (ICICI Prudential), supporting different screen sizes. ● Integrated CleverTap analytics event to analyze the app feature usage, user drop-off ratio, and many more. ● Developed an internal productivity application for ICICI Prudential to help team members track and manage daily task completion of other employees, improving visibility and accountability across teams. Tech Stack: Retrofit, OkHttp, JSON, Glide, XML, Android Design, Fabric Crashlytics, SVN. App Link - iPruAtom | iNeoTrack Education Bachelor of Engineering Mumbai University Kalina, Mumbai 07/2012 - 06/2016 ● Major in Mechanical Engineering SEED Infotech Mumbai 09/2016 - 06/2017 ● Seed Certified Java Developer