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Shivam Sharma

Staff Mobile Engineer @Nagarro | Ex-CleverTap | SDKs | Android · iOS · React Native · Flutter

Bengaluru

7+ years of work experience

Nagarro
Sep 20251 yrPresent

Bengaluru, Karnataka, India

CleverTap
Oct 20231 yr 11 mosAug 2025

* Architected and shipped a patented in-app IVR SDK that boosted user response rates by 40% compared to traditional PSTN campaigns * Reduced VoIP call latency over 72% by optimizing call setup and media routing, improved average call duration and drop-off rates in production * Sole maintainer of 50+ SDK releases across mobile platforms, powering millions of daily VoIP calls for leading clients in ride-hailing, food delivery, and BFSI sectors * Co-architected an offline-first in-app messaging system, cutting engagement latency by 40% during network outages
CleverTap
Nov 20211 yr 11 mosSep 2023

* Led end-to-end ownership of Signed Call VoIP SDK post-acquisition of PatchUs and played a pivotal role in the migration into CleverTap’s ecosystem * Sole contributor to the development of Flutter and React Native wrappers for the Signed Call SDK * Developed and maintained the CleverTap SDK suite across key engagement channels: Push, Analytics, In-App, App Inbox, and Remote Config * Managed high-value client relationships and provided hands-on technical support during SDK integrations
Patch_us
Apr 20201 yr 7 mosOct 2021

Noida, Uttar Pradesh, India

* Solely developed a lightweight Android SDK (250KB) and production-ready iOS SDK for VoIP, chat, and rich notifications. * Architected a multi-layer VoIP signaling system, achieved 99% call landing success. * Architected a custom HTTP networking module with configurable retry, backoff policies, and download capabilities.
Patch_us
Apr 20191 yrMar 2020

Noida, Uttar Pradesh, India

PatchUs was a B2B startup in the communications space, later acquired by CleverTap. I was solely responsible for building and maintaining one of the lightest Android SDKs (~250KB) and iOS framework to enable in-app voice, chat, and actionable notifications for client applications.
Bowstring Studio
Aug 20185 mosDec 2018

Greater Delhi Area

* Developed a responsive, multi-pane Android POC for an officer monitoring system, optimized for large-screen (7”-10”) tablets * Contributed to the apps across social networking, location-based services, and fintech domains
GitHub
@shivamsharma-1996

Shivam’s AI Stack

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Education

Government Engineering College, Ajmer

Bachelor of Technology - BTech, Computer Science

Government Engineering College, Ajmer

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Headline

Staff Mobile Engineer @Nagarro | Ex-CleverTap | SDKs | Android · iOS · React Native · Flutter

About

Senior Android Engineer | VoIP, Video, Analytics, Engagement | Architecting Scalable Solutions 6+ years obsessed with building B2B SaaS systems that scale. 🚀 What I Build: - VoIP & Video, Analytics, Engagement SDKs serving billions of daily active users - Real-time messaging platforms for enterprise clients - Built cross-platform SDKs across Android, iOS, Flutter, and React Native - Scalable architectures (extensible, testable, maintainable, reusable) #SaaS #MobileSDK #RealTimeCommunication #VoIP #AndroidDev #iOSDev

Location

Bengaluru

AI stack

cursor

opencode

claudecode

Work experience

Staff Engineer at Nagarro, Sep 2025 - Present · 1 yr, Bengaluru, Karnataka, India

Senior SDK Engineer at CleverTap, Oct 2023 - Aug 2025 · 1 yr 11 mos, * Architected and shipped a patented in-app IVR SDK that boosted user response rates by 40% compared to traditional PSTN campaigns * Reduced VoIP call latency over 72% by optimizing call setup and media routing, improved average call duration and drop-off rates in production * Sole maintainer of 50+ SDK releases across mobile platforms, powering millions of daily VoIP calls for leading clients in ride-hailing, food delivery, and BFSI sectors * Co-architected an offline-first in-app messaging system, cutting engagement latency by 40% during network outages

SDK Engineer at CleverTap, Nov 2021 - Sep 2023 · 1 yr 11 mos, * Led end-to-end ownership of Signed Call VoIP SDK post-acquisition of PatchUs and played a pivotal role in the migration into CleverTap’s ecosystem * Sole contributor to the development of Flutter and React Native wrappers for the Signed Call SDK * Developed and maintained the CleverTap SDK suite across key engagement channels: Push, Analytics, In-App, App Inbox, and Remote Config * Managed high-value client relationships and provided hands-on technical support during SDK integrations

Senior SDK Engineer at Patch_us, Apr 2020 - Oct 2021 · 1 yr 7 mos, Noida, Uttar Pradesh, India, * Solely developed a lightweight Android SDK (250KB) and production-ready iOS SDK for VoIP, chat, and rich notifications. * Architected a multi-layer VoIP signaling system, achieved 99% call landing success. * Architected a custom HTTP networking module with configurable retry, backoff policies, and download capabilities.

SDK Engineer at Patch_us, Apr 2019 - Mar 2020 · 1 yr, Noida, Uttar Pradesh, India, PatchUs was a B2B startup in the communications space, later acquired by CleverTap. I was solely responsible for building and maintaining one of the lightest Android SDKs (~250KB) and iOS framework to enable in-app voice, chat, and actionable notifications for client applications.

Mobile Application Developer at Bowstring Studio, Aug 2018 - Dec 2018 · 5 mos, Greater Delhi Area, * Developed a responsive, multi-pane Android POC for an officer monitoring system, optimized for large-screen (7”-10”) tablets * Contributed to the apps across social networking, location-based services, and fintech domains

Education

Bachelor of Technology - BTech, Computer Science, Government Engineering College, Ajmer

Public links

github: https://github.com/shivamsharma-1996