Summary
Overview
Work History
Education
Skills
Projects
Affiliations
Timeline
Generic

PREM KUMAR

Jaipur

Summary

Senior Mobile Engineer with 8+ years of experience in Android and cross-platform app development, including full-stack capabilities. Skilled in building high-performance, user-focused applications using Kotlin, Java, and React Native. Strong in problem-solving, architecture design, and integrating modern APIs and SDKs. Always eager to explore new technologies and deliver scalable, maintainable solutions that align with business goals.

Overview

12
12
years of professional experience

Work History

Senior Mobile Engineer

CodeMyMobile Inc.
Jaipur
07.2016 - Current
  • Developing and maintaining scalable Android and cross-platform apps using Kotlin, Java, and React Native.
  • Implemented Kotlin Multiplatform (KMP) to unify business logic across Android and iOS, reducing code duplication and accelerating feature delivery.
  • Leveraging AI-assisted tools (ChatGPT, GitHub Copilot, Cursor) to improve development speed, code quality, and overall productivity.
  • Partnering closely with product managers and designers to deliver user-centric features that align with business goals.
  • Integrating complex REST and GraphQL APIs, third-party SDKs (e.g., Stripe, Maps), and backend services into production-grade apps.
  • Optimizing app performance and responsiveness across devices through efficient architecture, UI tuning, and background processing strategies.
  • Key projects: Upkeep - Play Store, Jason's Wine & Spirits - Play Store | App Store, Vampr - Play Store

Android Developer

YellowTech Solutions Pvt. Ltd.
01.2016 - 07.2016
  • Developed 'Around', a location-based food/grocery finder Android app with Google Maps SDK and RESTful API integration.
  • Focused on building responsive UIs and efficient data loading for smooth real-time user experience.

Web & Java Developer

J&G Work Formula / W2Pes Pvt. Ltd.
07.2013 - 12.2015
  • Built internal enterprise tools including: Java-based Email Client with delivery tracking (JavaMail, SWT), CRM Activity Analyzer with interactive charts (Java, JFreeChart).
  • Gained hands-on experience with server-client architecture, desktop UIs, and data visualization in Java.

Education

B.Tech - CSE

Ch. Devilal Memorial Govt. Engineering College
Sirsa
12.2013

Skills

  • Languages: Kotlin, Java, JavaScript, TypeScript, SQL
  • Mobile: Android, Jetpack, React Native, Firebase, Coroutines
  • APIs and networking: REST, GraphQL, Retrofit, Apollo, WebSockets
  • Databases: SQLite, Room, MySQL
  • Tools: Android Studio, VS Code, Git, Gradle, AWS (EC2, S3, SES), Postman
  • Testing: JUnit, Espresso, Mockito
  • Others: AI-based development (ChatGPT, Copilot, Cursor)

Projects

EmailValidify, https://emailvalidify.com, React.js, PHP APIs, Java Spring Boot (Concurrent processing, socket communication), Architected and developed a full-stack email verification platform enabling real-time address validation., Led frontend implementation with React.js integrated with RESTful APIs built in PHP; backend services designed with Java Spring Boot incorporating concurrent socket-based processing., Engineered scalable, high-performance background services to support bulk email validation and efficient socket communication., Planned next phase: development of a mobile companion app to extend platform capabilities and provide real-time validation insights on the go.

Affiliations

EmailValidify

https://emailvalidify.com

Stack: React.js, PHP APIs, Java Spring Boot (concurrent processing, socket communication)

  • Architected and developed a full-stack email verification platform, enabling real-time address validation
  • Led frontend implementation with React.js, integrated with RESTful APIs built in PHP, and backend services designed with Java Spring Boot, incorporating concurrent socket-based processing
  • Engineered scalable, high-performance background services to support bulk email validation and efficient socket communication
  • Planned next phase: development of a mobile companion app to extend platform capabilities, and provide real-time validation insights on the go

Timeline

Senior Mobile Engineer

CodeMyMobile Inc.
07.2016 - Current

Android Developer

YellowTech Solutions Pvt. Ltd.
01.2016 - 07.2016

Web & Java Developer

J&G Work Formula / W2Pes Pvt. Ltd.
07.2013 - 12.2015

B.Tech - CSE

Ch. Devilal Memorial Govt. Engineering College

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