Subhash Kumar — IOS Engineer

🚀 𝗦𝗲𝗻𝗶𝗼𝗿 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝟱+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗞𝗼𝘁𝗹𝗶𝗻 • 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 • 𝗞𝗠𝗠 • 𝗖𝗹𝗲𝗮𝗻 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 Passionate Android Developer with over 5 years of hands-on experience in building 𝗵𝗶𝗴𝗵-𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲, 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲, 𝗮𝗻𝗱 𝘀𝗲𝗰𝘂𝗿𝗲 mobile applications, primarily in 𝗙𝗶𝗻𝘁𝗲𝗰𝗵, 𝗧𝗲𝗹𝗲𝗰𝗼𝗺, 𝗮𝗻𝗱 𝗖𝗼𝗻𝘀𝘂𝗺𝗲𝗿 𝗜𝗻𝘁𝗲𝗿𝗻𝗲𝘁 domains. I specialize in 𝗞𝗼𝘁𝗹𝗶𝗻, 𝗝𝗲𝘁𝗽𝗮𝗰𝗸 𝗖𝗼𝗺𝗽𝗼𝘀𝗲, 𝗫𝗠𝗟, and modern Android architectures like 𝗠𝗩𝗩𝗠, 𝗠𝗩𝗜, 𝗖𝗹𝗲𝗮𝗻 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲, and 𝗠𝘂𝗹𝘁𝗶-𝗠𝗼𝗱𝘂𝗹𝗲 setups. Also experienced with 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 and 𝗞𝗼𝘁𝗹𝗶𝗻 𝗠𝘂𝗹𝘁𝗶𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺 (𝗞𝗠𝗠) for cross-platform development. 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: ✔ Android SDK & Jetpack Libraries – 𝘝𝘪𝘦𝘸𝘔𝘰𝘥𝘦𝘭, 𝘓𝘪𝘷𝘦𝘋𝘢𝘵𝘢, 𝘙𝘰𝘰𝘮, 𝘏𝘪𝘭𝘵/𝘋𝘢𝘨𝘨𝘦𝘳 (DI), 𝘊𝘰𝘳𝘰𝘶𝘵𝘪𝘯𝘦𝘴, 𝘍𝘭𝘰𝘸 ✔ UI/UX Excellence – 𝘑𝘦𝘵𝘱𝘢𝘤𝘬 𝘊𝘰𝘮𝘱𝘰𝘴𝘦, XML, 𝘤𝘶𝘴𝘵𝘰𝘮 𝘷𝘪𝘦𝘸𝘴, 𝘢𝘯𝘪𝘮𝘢𝘵𝘪𝘰𝘯𝘴, 𝘢𝘥𝘢𝘱𝘵𝘪𝘷𝘦 𝘭𝘢𝘺𝘰𝘶𝘵𝘴 ✔ Backend & APIs – 𝘙𝘌𝘚𝘛𝘧𝘶𝘭 𝘈𝘗𝘐𝘴, JSON, 𝘙𝘦𝘵𝘳𝘰𝘧𝘪𝘵, 𝘞𝘦𝘣𝘚𝘰𝘤𝘬𝘦𝘵𝘴 ✔ Performance & Optimization – 𝘔𝘦𝘮𝘰𝘳𝘺 𝘵𝘶𝘯𝘪𝘯𝘨, CI/CD, ProGuard, Firebase ✔ Security & Testing – 𝘌𝘯𝘤𝘳𝘺𝘱𝘵𝘪𝘰𝘯, 𝘑𝘜𝘯𝘪𝘵, 𝘌𝘴𝘱𝘳𝘦𝘴𝘴𝘰, 𝘔𝘰𝘤𝘬𝘪𝘵𝘰, 𝘛𝘋𝘋 ✔ App Lifecycle – 𝘗𝘭𝘢𝘺 𝘚𝘵𝘰𝘳𝘦 𝘥𝘦𝘱𝘭𝘰𝘺𝘮𝘦𝘯𝘵, 𝘎𝘪𝘵 𝘸𝘰𝘳𝘬𝘧𝘭𝘰𝘸𝘴, 𝘈𝘨𝘪𝘭𝘦/𝘚𝘤𝘳𝘶𝘮 ✔ Flutter Development – 𝘚𝘵𝘢𝘵𝘦 𝘮𝘢𝘯𝘢𝘨𝘦𝘮𝘦𝘯𝘵 (Provider, Bloc), 𝘍𝘭𝘶𝘵𝘵𝘦𝘳 𝘞𝘪𝘥𝘨𝘦𝘵𝘴, 𝘋𝘢𝘳𝘵, 𝘊𝘶𝘴𝘵𝘰𝘮 𝘜𝘐, 𝘗𝘭𝘶𝘨𝘪𝘯𝘴 ✔ Kotlin Multiplatform (KMM) – 𝘚𝘩𝘢𝘳𝘦𝘥 𝘤𝘰𝘥𝘦 𝘢𝘤𝘳𝘰𝘴𝘴 𝘈𝘯𝘥𝘳𝘰𝘪𝘥 & 𝘪𝘖𝘚, 𝘒𝘰𝘵𝘭𝘪𝘯 𝘓𝘪𝘣𝘳𝘢𝘳𝘪𝘦𝘴, 𝘒𝘯𝘪𝘵𝘤𝘩𝘦𝘴𝘵, 𝘌𝘹𝘱𝘰𝘴𝘦𝘥 𝘔𝘰𝘥𝘶𝘭𝘦𝘴 🤝 I thrive in 𝗰𝗿𝗼𝘀𝘀-𝗳𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝗮𝗹 𝘁𝗲𝗮𝗺𝘀, aligning tech and product goals to deliver impactful solutions. With a strong base in OOP, design patterns, and clean code principles, I focus on 𝗺𝗮𝗶𝗻𝘁𝗮𝗶𝗻𝗮𝗯𝗶𝗹𝗶𝘁𝘆, 𝘁𝗲𝘀𝘁𝗮𝗯𝗶𝗹𝗶𝘁𝘆, 𝗮𝗻𝗱 𝘀𝗰𝗮𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆 — while mentoring peers and enhancing development workflows. Let’s build the future of Mobile Apps — 𝗳𝗮𝘀𝘁𝗲𝗿, 𝘀𝗺𝗮𝗿𝘁𝗲𝗿, 𝗮𝗻𝗱 𝗰𝗹𝗲𝗮𝗻𝗲𝗿.

Stackforce AI infers this person is a Fintech-focused Android Developer with expertise in secure mobile applications.

Location: Gurugram, Haryana, India

Experience: 6 yrs 7 mos

Skills

Android Development
Application Security
Jetpack Compose
Kotlin

Career Highlights

Expert in Android development with 5+ years of experience.
Led successful OAuth 2.0 migration enhancing app security.
Proficient in Kotlin and cross-platform development with Flutter.

Work Experience

Motive

Software Engineer L4 (Android) (6 mos)

BharatPe

SDE-2 (8 mos)

Deutsche Telekom

Software Engineer - II (5 mos)

Software Engineer (2 yrs 7 mos)

Samsung Electronics

Software Engineer (2 yrs 5 mos)

Education

Bachelor of Technology at Indian Institute Of Information Technology Allahabad

Subhash Kumar

IOS Engineer

Gurugram, Haryana, India6 yrs 7 mos experience

Highly Stable

Key Highlights

Expert in Android development with 5+ years of experience.
Led successful OAuth 2.0 migration enhancing app security.
Proficient in Kotlin and cross-platform development with Flutter.

Stackforce AI infers this person is a Fintech-focused Android Developer with expertise in secure mobile applications.

Contact

Skills

Core Skills

Android DevelopmentApplication SecurityJetpack ComposeKotlin

Other Skills

Agile DevelopmentAlgorithmsAndroid Data BindingAndroid JetpackAndroid SDKAndroid StudioBenchmarkingC++Charles ProxyClean CodingClean architectureCommunicationContinuous Integration and Continuous Delivery (CI/CD)Data StructuresDatabase Management System (DBMS)

About

Experience

Motive

Software Engineer L4 (Android)

Sep 2025 – Present · 6 mos · India · Remote

Bharatpe

SDE-2

Dec 2024 – Aug 2025 · 8 mos · Gurugram, Haryana, India · On-site

Working on BharatPe’s Consumer UPI App – Handling User Transactions, Authentication, and Security
🔐 OAuth 2.0 Migration | Seamless Auth Flow Modernization
Led the migration of the authentication system to OAuth 2.0 to modernize session management and enhance security. Designed a backward-compatible token upgrade mechanism that allowed existing users to be migrated silently without being logged out.
Implemented refresh token lifecycle management with secure storage
Added retry and fallback logic for access token refresh, enabling graceful degradation
Achieved 95%+ seamless user upgrade with zero logouts
Reduced session-related errors by ~40%
🛡️ Google Play Integrity Integration | Fraud & Risk Mitigation
Integrated Google Play Integrity API to detect and block tampered, rooted, or emulated devices. Enforced device attestation during UPI transactions and onboarding to strengthen the app’s trust and compliance posture.
Ensured only verified devices could initiate critical operations
Reduced fraud entry points and transaction abuse from compromised devices
Enabled scalable security enforcement within the UPI flow

Model-view-viewmodel (MVVM)Android DevelopmentUPIKotlinKotlin Multiplatform (KMP)Hilt+6

Deutsche telekom

2 roles

Software Engineer - II

Jul 2024 – Dec 2024 · 5 mos · Gurugram, Haryana, India · Hybrid

Developed key features in T-Mobile's T-Life Android app, adopting MVI architecture and Jetpack Compose to enhance UI responsiveness and maintainability.
Collaborated on performance optimizations, including memory profiling and bottleneck fixes, to improve app startup and stability.
Improved code quality by integrating custom Detekt & Lint rules, helping standardize practices across a large codebase.

Android DevelopmentKotlinHiltGitLab CI/CDContinuous Integration and Continuous Delivery (CI/CD)Jetpack Compose+5

Software Engineer

Nov 2021 – Jun 2024 · 2 yrs 7 mos · Gurugram, Haryana, India · Hybrid

Responsible for Design, Build and Maintain high performance, reusable, and reliable code. Managing the OneApp for Android users and continuously adding new features and improving the application on the basis of product requirements and users feedback while maintaining code quality, code optimization, and automation.
Major Project :
Engagement Loyalty Program -
As a key member of the development team, I contributed to the creation and implementation of Magenta Moments Engagement Program which helps in customer engagement through a variety of exciting features such as Telekom & Non-Telekom offers, interactive games and other rewarding experiences.

GitModel-view-viewmodel (MVVM)Android DevelopmentKotlinKotlin CoroutinesJetpack Compose+9

Samsung electronics

Software Engineer

Jun 2019 – Nov 2021 · 2 yrs 5 mos · Noida, Uttar Pradesh, India · On-site

Contributed to the Samsung clock application by designing and developing features for the Alarm and Timer functionalities. Collaborated with cross-functional teams working on various layers of the Android operating system to implement these enhancements.

JavaAndroid DevelopmentKotlinUnit TestingMobile Application DevelopmentModel-View-Presenter (MVP)