Harsh Sharma

Staff-track Senior Software Engineer II (SDE-3) | Fintech & Telecom | Android & Flutter

📱 +91‑9599305737 | ✉️ harsh159357@gmail.com
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Profile

Staff‑track Senior Software Engineer II (SDE‑3) with 10+ years of experience spanning fintech, telecom, and enterprise mobility, specialising in Customer Experience (CX) and Help & Support platforms for high‑throughput trading systems.

Career arc: Built Android apps at Craterzone and Team Computers → delivered large‑scale telecom apps at Infosys (Telstra, BP) → architected design systems at Jio → led CX/Help platforms at CoinDCX.

Architecture & Platforms: Designed reusable frameworks (Help Center, deep link infra, design systems) adopted across squads.

Production Excellence: Raised Crash‑Free Rate from 99.60% → 0%, reduced non‑fatal errors by 20%, and cut ANR rate by 12%.

Performance Optimization: Achieved up to 0% latency reduction across key screens, surpassing competitor benchmarks.

Release Leadership: Directed 8+ major app releases with zero rollbacks, ensuring predictable delivery across QA, backend, and product.

Team Enablement: Mentored engineers, authored onboarding guides, and ran tech talks to scale team capability.

Now targeting Staff/Principal roles in fintech/infra, where customer experience, reliability, and cross‑team leadership drive business outcomes.

Experience

Jul 2022 – Present
Senior Software Engineer II (SDE‑3)
CoinDCX – Bengaluru
  • Help & Support Platform Ownership: Architected a reusable Help Center → reduced support tickets by 15% and boosted chatbot engagement by 25%.
  • Compliance & Reliability: Delivered Re‑KYC, PAN verification with zero post‑release bugs.
  • Production Excellence: Raised Crash‑Free Rate from 99.60% → 99.88%, cut non‑fatal errors by 20%, reduced ANR rate by 12%.
  • Performance Optimization: Delivered up to 73% latency reduction across key screens, including 51% faster splash→PIN and 55% faster Futures Market load.
  • Release Leadership: Directed 8+ major app releases with zero rollbacks.
  • Feature Velocity: Shipped 30+ high‑impact features under hackathon timelines.
  • Team Enablement: Mentored engineers, ran Flutter performance tech talks, authored internal guides adopted across squads.
  • Innovation: Deployed a Flutter Web project (95% uptime) and built Pine Script trading indicators validated via backtesting.
Jun 2021 – Jul 2022
Senior Android Developer
Jio Platforms – Bengaluru
  • Jio Design System Ownership: Built reusable UI library (XML + Jetpack Compose) powering flagship apps like MyJio, JioChat, JioTV.
  • Developer Productivity: Created internal plugins that reduced UI setup time by 30%+.
  • Reusable Components: Delivered typography, theming, and UI frameworks adopted across multiple Jio apps.
Dec 2018 – Jun 2021
Technology Analyst
Infosys (Telstra, BP clients) – Bengaluru
  • Enterprise‑Scale Delivery: Contributed to the My Telstra Android App serving millions of users.
  • Cost Optimization: Implemented alternative AR SDK for BP’s Safe2Go app → saved client $1000+ annually.
  • High‑Throughput Apps: Delivered features in telecom and energy apps with millions of active users.
Feb 2017 – Nov 2018
Android Developer
Team Computers – Gurugram
  • HR Transformation: Migrated attendance management from biometric to mobile → streamlined HR ops for 1500+ employees.
  • End‑to‑End Ownership: Independently managed Android app lifecycle from prototyping to deployment.
Jun 2015 – Feb 2017
Android Developer
Craterzone Pvt Ltd – Noida
  • Feature Delivery: Implemented and updated Android apps under senior guidance.
  • Independent Execution: Delivered features both individually and in team settings.

Skills

Architecture & Systems

Clean Architecture Modularization Feature Toggles Dependency Injection Reusable Frameworks API Centralization Deep Link Infra Design Systems

Mobile Platforms

Android (Kotlin/Java) Jetpack Compose Views/XML Flutter Material Design Accessibility Play Store Deployment App Signing

Concurrency & Data

Kotlin Coroutines/Flows RxJava LiveData WorkManager Room/SQLite DataStore Caching Strategies Offline-first

Networking & APIs

Retrofit/OkHttp GraphQL WebSockets gRPC (familiar) Pagination Request Batching Error Handling Retry/Backoff

Performance Engineering

Profiling (CPU/Memory/Network) Rendering Optimization List Diffing Cold/Warm Start Tuning ANR/Crash RCA Memory Management

Testing & QA

JUnit Espresso Mockito Appium UI Automation Unit/Integration Tests Contract Tests Hermetic Tests

CI/CD & Release

Gradle Build Variants Jenkins/GitHub Actions Code Quality Gates Automated Pipelines Rollout Strategies Release Management

Observability & Reliability

Crashlytics Sentry Firebase Performance Logs/Metrics Tracing Incident Triage Feature Flags Runtime Safeguards

Security & Compliance

KYC/PAN Flows OAuth/JWT Secure Storage Certificate Pinning Data Privacy Regulatory UX

Cross‑Platform & iOS

Flutter Channel Bridging Platform Views iOS Build/Signing Swift Interop (basic)

Libraries & Frameworks

Retrofit OkHttp Moshi/GSON Glide/Coil Dagger/Hilt Timber LeakCanary Jetpack Suite

Leadership & Productivity

Code Reviews Mentorship Onboarding Guides Tech Talks Internal Tooling Cross-team Collaboration

Projects & Open Source

CoinDCX App

Play Store – Help & Support platform, performance-optimized trading app with 99.88% crash-free rate.

View

MyJio

Play Store – Flagship Jio app powered by reusable design system and Jetpack Compose components.

View

Bhagavad Gita App

Play Store – Spiritual reference app with clean UX and offline access.

View

My Telstra

Play Store – Enterprise-scale telecom app for Australian market (Infosys delivery).

View

Flutter Web Project

Coding portfolio site with 95% uptime and 50+ visitors in 3 months.

View

Trading Indicators (Pine Script)

Custom moving averages, SuperTrend, validated via backtests for trading strategies.

InstaTag (Android Library)

Utility library for quick tagging and metadata handling.

View

Contacts (Flutter App)

Cross-platform contacts manager with clean architecture and 4 storage implementations.

View

Education

B.Tech, Computer Science Engineering
CT Institute of Technology, Jalandhar (2011–2015) – 76%
Senior Secondary
2011 – 75% | C.J.S Public School, Jalandhar
Higher Secondary
2009 – 72% | C.J.S Public School, Jalandhar

Strengths

Rapid learner, adaptable across mobile, cross‑platform, and infra domains
Strong in debugging and production issue resolution under high‑throughput conditions
Balances execution speed with long‑term reliability and compliance
Passionate about mentorship, architecture, and scaling engineering excellence

Contact

📱 +91‑9599305737 | ✉️ harsh159357@gmail.com

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