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Arsh Kumar

Android Software Engineer @ Knot.Dating | Kotlin , Jetpack Compose & WebRTC | GATE’24 Qualifier | DCE GGN’25

Gurugram

1+ year of work experience

Knot.dating
Aug 20251 yr 4 mosPresent

Gurugram, Haryana, India

Building and improving Android experiences with a focus on real-time communication, application reliability, performance optimization, and user safety. • Real-Time Communication: Developed an end-to-end audio calling experience, integrating real-time communication technologies to deliver a seamless in-app calling experience. • System Reliability: Improved incoming-call reliability across diverse Android devices and manufacturer-specific system behaviors, addressing lifecycle management, background execution, and audio interruptions. • Crash & Stability Optimization: Investigated and resolved complex native-level crashes and concurrency issues, contributing to improved application stability in production. • Reliable Event Handling: Strengthened real-time event processing and call-state management to improve consistency and resilience across asynchronous communication flows. • Performance & Cost Optimization: Replaced an external dependency with a custom Android-based solution for selfie verification, reducing reliance on third-party services. • User Safety & Engagement: Developed real-time chat capabilities incorporating automated content protection and user safety mechanisms to support a better in-app experience. • App Optimization & Security: Reduced application package size through code shrinking and obfuscation, while implementing platform-backed integrity checks to strengthen application security. Technologies: Kotlin, Android SDK, Jetpack Compose, WebRTC, Socket.IO, CameraX, Coroutines, StateFlow, Firebase, MVVM, Clean Architecture.
Truecaller
Jan 20251 moJan 2025

Gurugram, Haryana, India

Assist third-party developers in integrating and debugging Truecaller APIs and SDKs within Android/iOS apps. Diagnose API/SDK integration issues, analyze logs, and provide code-level troubleshooting support. Develop and maintain technical documentation, onboarding guides, and sample integration code. Collaborate with the Developer Relations and Product teams to optimize SDK performance and scalability. Gather developer feedback to improve API usability, documentation, and overall developer experience.
Aug 20244 mosNov 2024

Gurugram, Haryana, India

• Collaborated with a senior developer to architect, develop, and maintain an AI-based character app with 600k+ downloads and 348k+ monthly active users, ensuring scalability and high performance. • Increased Crash-Free rate from 94% to 99.8%, maintaining accurate UI and ensuring app stability across devices. • Spearheaded the development of key user-centric features such as runtime app icon changes, dynamic profile sections, and subscription management, enhancing user engagement and retention. • Optimized application performance through state management best practices and UI rendering optimizations, reducing recompositions and improving frame rates. • Implemented robust network integrations with Retrofit, including error handling, caching strategies, and seamless API data synchronization. • Used Remote Config to deliver tailored onboarding flows, expose feature toggles, and provide incentives for new users, dynamically enhancing app experiences. • Debugged production issues using Crashlytics, ensuring smooth functionality across device types and OS versions

Arsh’s AI Stack

claude code
claude code
cursor
cursor
gemini
gemini
Bolt.new
Bolt.new
ChatGPT
ChatGPT
Firecrawl
Firecrawl

Education

Dronacharya College of Engineering

Bachelor of Technology, Computer Science

Dronacharya College of Engineering

20214 yrs2025

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Headline

Android Software Engineer @ Knot.Dating | Kotlin , Jetpack Compose & WebRTC | GATE’24 Qualifier | DCE GGN’25

About

I’m an Android Software Engineer who loves tackling deep OS-level challenges to build seamless mobile experiences. I take end-to-end ownership of our app's architecture, stability, and feature delivery. I don’t just consume APIs; I build robust, system-level solutions. Recently, I architected a WhatsApp-style real-time audio calling system from scratch using WebRTC and Socket.IO, navigating complex OEM notification constraints. My stack centers on Kotlin, Jetpack Compose, WebRTC, and Coroutines. Whether it’s resolving native C++ threading crashes to hit a 99.69% crash-free rate or aggressively optimizing app binaries via ProGuard, I’m driven by delivering scalable, high-performance apps. I'm always open to connecting and chatting about Android architecture, real-time media, or exciting engineering challenges!

Location

Gurugram

AI stack

claude code

cursor

gemini

Bolt.new

ChatGPT

Firecrawl

Work experience

Software Engineer Android at Knot.dating, Aug 2025 - Present · 1 yr 4 mos, Gurugram, Haryana, India, Building and improving Android experiences with a focus on real-time communication, application reliability, performance optimization, and user safety. • Real-Time Communication: Developed an end-to-end audio calling experience, integrating real-time communication technologies to deliver a seamless in-app calling experience. • System Reliability: Improved incoming-call reliability across diverse Android devices and manufacturer-specific system behaviors, addressing lifecycle management, background execution, and audio interruptions. • Crash & Stability Optimization: Investigated and resolved complex native-level crashes and concurrency issues, contributing to improved application stability in production. • Reliable Event Handling: Strengthened real-time event processing and call-state management to improve consistency and resilience across asynchronous communication flows. • Performance & Cost Optimization: Replaced an external dependency with a custom Android-based solution for selfie verification, reducing reliance on third-party services. • User Safety & Engagement: Developed real-time chat capabilities incorporating automated content protection and user safety mechanisms to support a better in-app experience. • App Optimization & Security: Reduced application package size through code shrinking and obfuscation, while implementing platform-backed integrity checks to strengthen application security. Technologies: Kotlin, Android SDK, Jetpack Compose, WebRTC, Socket.IO, CameraX, Coroutines, StateFlow, Firebase, MVVM, Clean Architecture.

Technical Operations Intern at Truecaller, Jan 2025 - Jan 2025 · 1 mo, Gurugram, Haryana, India, Assist third-party developers in integrating and debugging Truecaller APIs and SDKs within Android/iOS apps. Diagnose API/SDK integration issues, analyze logs, and provide code-level troubleshooting support. Develop and maintain technical documentation, onboarding guides, and sample integration code. Collaborate with the Developer Relations and Product teams to optimize SDK performance and scalability. Gather developer feedback to improve API usability, documentation, and overall developer experience.

SDE - Android at Digitally Delight, Aug 2024 - Nov 2024 · 4 mos, Gurugram, Haryana, India, • Collaborated with a senior developer to architect, develop, and maintain an AI-based character app with 600k+ downloads and 348k+ monthly active users, ensuring scalability and high performance. • Increased Crash-Free rate from 94% to 99.8%, maintaining accurate UI and ensuring app stability across devices. • Spearheaded the development of key user-centric features such as runtime app icon changes, dynamic profile sections, and subscription management, enhancing user engagement and retention. • Optimized application performance through state management best practices and UI rendering optimizations, reducing recompositions and improving frame rates. • Implemented robust network integrations with Retrofit, including error handling, caching strategies, and seamless API data synchronization. • Used Remote Config to deliver tailored onboarding flows, expose feature toggles, and provide incentives for new users, dynamically enhancing app experiences. • Debugged production issues using Crashlytics, ensuring smooth functionality across device types and OS versions

Education

Bachelor of Technology, Computer Science, Dronacharya College of Engineering