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Harsh5488/README.md

πŸ‘‹ Harshvardhan Gupta

πŸš€ Android & Systems Engineer building high-performance, scalable applications serving 500K+ users


🧠 Engineering Highlights

  • πŸ“ˆ Achieved 99.9% crash-free sessions in production
  • ⚑ Reduced ANRs by 40–50% through threading + lifecycle optimization
  • πŸš€ Improved cold start time by 12–15% using baseline profiles & lazy init
  • πŸ”— Built dynamic link system (~10–15ms latency) replacing Firebase DL
  • πŸ“‘ Enabled real-time device-to-device events (<50ms latency)
  • 🧩 Reduced 1.2K–1.5K weekly crashes via open-source contribution (Socket.IO)
  • πŸ–ΌοΈ Built image compression pipeline (~90% size reduction)

βš™οΈ Tech Stack

πŸ“± Android

Kotlin Java MVVM Coroutines Hilt Compose

πŸ”§ Backend & Systems

Node.js PubSub Event Driven NoSQL


πŸ—οΈ Featured Work

πŸ”— Dynamic Links Replacement

High-performance link routing system supporting install flows, deep linking, and cross-platform redirects

  • ⚑ 9–15ms latency
  • 🌐 Handles app / web / install redirection
  • 🧠 Designed using hashing + NoSQL

πŸ“‘ Real-Time Event System (Bifrost Extension)

Extended internal event bus to support Android ↔ Android communication

  • ⚑ Sub-50ms event delivery
  • πŸ”„ Event-driven architecture
  • πŸ“² Real-time user interactions

πŸ–ΌοΈ ImageProcessor Library

Production-grade image compression pipeline

  • πŸ“‰ Reduced payload size by up to 90%
  • πŸ“¦ Used across chat, inbox, media flows

πŸŽ™οΈ TaskDaemon

Background voice-to-task automation system

  • 🎧 Wake-word triggered pipeline
  • 🧠 Speech β†’ structured tasks (no AI/ML)
  • βš™οΈ Built using Android services

🧩 Engineering Focus

  • πŸ“± Android Performance Engineering
  • πŸ”„ Concurrency & Multithreading
  • πŸ“‘ Event-Driven Systems
  • 🧠 System Design & Scalability
  • 🐞 Production Debugging

πŸ“‚ What You'll Find in This Repo

  • πŸ—οΈ Real-world system design docs
  • βš™οΈ Performance optimization techniques
  • 🐞 Production debugging breakdowns
  • πŸ“± Android + backend engineering work

🀝 Connect

LinkedIn GitHub


πŸ“Œ Philosophy

Build systems that are fast, reliable, and observable.
Optimize for real-world performance, not just correctness.


⭐ If you find something interesting, feel free to explore or connect!

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