Harsh Sharma | Mobile Engineer

09:41

Wednesday, October 24

Recruitment now

"Wow, 99.88% crash-free rate at CoinDCX? We need to talk about a Staff role."

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Harsh Sharma

Senior Software Engineer II (SDE-3)

About

Staff‑track Senior Software Engineer (SDE‑3) and Quant Systems Builder with 10+ years of experience building high‑throughput apps across fintech, telecom, and enterprise mobility.

I specialize in architecting reusable frameworks—Help Centers, deep link infra, design systems—that scale across squads and improve reliability. Alongside delivery, I mentor engineers, author onboarding guides, run tech talks, and contribute to hiring.

I am also an independent quant systems builder: I design profitable Pine Script algorithms, convert TA insights into backtestable frameworks, and validate them with rigorous risk‑aware execution.

Key Impacts

Stability Crash‑Free Rate: 99.60% → 99.88%

Errors Non‑fatal errors reduced 20% (770K → 557K users)

ANR ANR rate cut 12% (0.73% → 0.59%)

Speed Up to 73% latency reduction across key trading screens

Delivery 8+ major releases with zero rollbacks

Features 30+ high‑impact features shipped at CoinDCX

Education

B.Tech Computer Science Engineering, CT Institute of Technology, Shahpur (2011–2015)

12th Non‑Medical (PCM), C.J.S Public School, Jalandhar (2010–2011)

10th C.J.S Public School, Jalandhar (2008–2009)

Jul 2022 – Present · 3+ years

SDE‑3 (Senior Software Engineer II)

CoinDCX, Bengaluru

• Architected reusable Help Center (Quick Links, Top Questions, VIP/WhatsApp support, AI ChatBot) → reduced support tickets by 15%, boosted chatbot engagement by 25%.
• Delivered Re‑KYC, PAN verification, and account management flows with zero post‑release bugs.
• Crash‑Free Rate: 99.60% → 99.88%. Non‑fatal errors ∙20% (770K → 557K). ANR ∙12% (0.73% → 0.59%).
• Up to 73% latency reduction (Portfolio, Futures, Spot, Home). 51% faster splash→PIN, 55% faster Futures Market load.
• 8+ major releases with zero rollbacks. Introduced PR/release checklists and proactive risk flagging.
• 30+ features shipped incl. INR/CDW ticketing, deep link refactor, in‑app rating triggers.
• Mentored junior engineers, ran Flutter tech talks, authored internal guides adopted across squads.

Jan 2020 – Present · 6+ years

Independent Quant Researcher & Algo Developer

Artha Tvam Asi (Self)

• Built and validated profitable Pine Script algorithms across equities and crypto.
• Developed modular custom indicators (adaptive MAs, SuperTrend variants, momentum filters).
• Comprehensive backtesting across multiple regimes; measured Sharpe, drawdown, and consistency.
• Cross‑asset & multi‑timeframe systems (stocks, crypto, options, indices, forex, commodities).
• Passed funded trading challenges demonstrating institutional‑style discipline.

Jun 2021 – Jun 2022 · 1 yr 1 mo

Senior Android Developer

Jio Platforms, Bengaluru

• Built Jio Design System: reusable UI library (XML + Jetpack Compose) powering MyJio, JioChat, JioTV.
• Created internal plugins (Powerset, Theme Generator) → automated theming, reduced UI setup time by 30%+.
• Delivered typography, theming, and UI frameworks adopted across multiple Jio apps.

Dec 2018 – Jun 2021 · 2 yrs 7 mo

Technology Analyst

Infosys (Telstra, BP), Bengaluru

• Contributed to My Telstra Android App serving millions of users in the Australian telecom market.
• Implemented alternative AR SDK for BP's Safe2Go app → saved client $1000+/yr in licensing costs.
• Delivered features in telecom and energy apps ensuring reliability and compliance in production.

Feb 2017 – Nov 2018 · 1 yr 10 mo

Android Developer

Team Computers, New Delhi

• Migrated attendance management from biometric to mobile → streamlined HR ops for 1500+ employees.
• Independently managed Android app lifecycle from prototyping to deployment.

Jun 2015 – Feb 2017 · 1 yr 9 mo

Android Developer

Craterzone Pvt Ltd, Noida

• Implemented and updated Android apps under senior guidance, contributing to client deliverables.
• Delivered features both individually and in team settings, building early foundations in mobile development.

Android

Arch

Flutter

Proficiency Distribution

Mobile Platforms

Android (Kotlin/Java)

Jetpack Compose

Flutter

App Signing & Play Store

Architecture

Clean Architecture

Modularization

Design Systems

Feature Toggles

Performance & Data

Coroutines/Flows

CPU Profiling

Offline-First (Room)

Crashlytics / Sentry

Quant & Trading Systems

Pine Script

Backtesting Frameworks

Algo Development

Risk Management

Multi-Timeframe Analysis

Position Sizing

Tools & DevOps

Firebase

Git / CI-CD

Jira / Agile

Deep Linking

Release Management

Work Highlights

CoinDCX App

Fintech Trading Platform

View

Core engineering for high-throughput trading. Architected the Help/Support platform. Reached 99.88% crash-free rate.

MyJio

Flagship Telecom App

View

Developed UI components using XML and Jetpack Compose for the internal Jio Design System utilized across the ecosystem.

Bhagavad Gita

Spiritual Reference

View

Built with clean architecture, offline-first Room database, and smooth typography for long-form reading.

Flutter Contacts Base

Open Source Architecture

Repo

Cross-platform application demonstrating clean architecture principles with 4 interchangeable storage implementations.

Artha Tvam Asi

Quant Systems & Algo Trading

Self

Systematic quant research: profitable Pine Script algos, custom indicators, backtesting frameworks across equities, crypto, options & forex. Passed funded trading challenges.

My Telstra

Enterprise Telecom App

Infosys

Contributed to the flagship Android app serving millions of users in the Australian telecom market via Infosys engagement.

BP Safe2Go

AR Safety App

Infosys

Implemented alternative AR SDK for BP’s safety compliance app, saving the client $1000+ annually in licensing costs.

Quick Settings

About

Key Impacts

Education

Mobile Platforms

Architecture

Performance & Data

Quant & Trading Systems

Tools & DevOps