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abhishek raj

@abhishekraj6

Android engineer and technical lead at Cognizant, delivering Walmart’s UGC module across 14 tenant apps and strengthening QuickBooks security.

India

Message

At Cognizant, I’m the Android owner for Walmart’s UGC module, delivering features across a Kotlin monorepo serving 14 tenant apps. I’ve shipped reviews, ratings, photo uploads, and accessibility-compliant features, contributing to a 5–10% increase in user engagement.

For Intuit QuickBooks, I built and distributed an Android SDK and implemented MFA, role-based access control, and encrypted local storage. I achieved about 90% test coverage using JUnit, Espresso, and Maestro.

On Google Play Protect work, I performed malware analysis and reverse engineering across Android and cross-platform apps, including native C++ libraries. I also led and mentored engineers in these techniques.

At Tata Elxsi, I delivered Android and Android TV development for SonyLiv and Zee5. At BPL Medical Technologies, I built Android SDKs and Bluetooth-connected health applications, including real-time ECG visualization.

Experience

Work history, roles, and key accomplishments

Current

Technical Lead

Current

Cognizant

Jan 2022 - Present (4 years 9 months)

Sole Android owner of the UGC module, driving end-to-end feature delivery across a 500+ module Kotlin monorepo serving 14 tenant apps. Led architecture decisions, validated GraphQL API changes, and coordinated sign-off across QA, ADA, Analytics, and Product, contributing to a 5-10% increase in user engagement.

Kotlin Java C++JNI MVVM MVI Clean Architecture Apollo GraphQL Bluetooth Android Security Malware Analysis Reverse Engineering JAD X Ghidra Frida SQLCipher Junit Espresso Maestro CI CD SonarQube Agile Scrum

Technical Specialist

Tata Elxsi

Nov 2019 - Dec 2021 (2 years 1 month)

Led end-to-end OTT Android and Android TV development for SonyLiv and Zee5, deployed across multiple countries on Fire TV, JIO STB, and Xiaomi platforms. Owned CI/CD pipelines, code reviews, and SonarQube-gated releases, and resolved performance issues like slow rendering and ANRs.

Android Android TV ExoPlayer HLS Dash Firebase Crashlytics Google Analytics Catch Media LOTAME Junit CI CD SonarQube Performance Optimization

R&D Engineer

BPL Medical Technologies

Oct 2015 - Sep 2019 (3 years 11 months)

Built and distributed Android SDKs for Home Health medical products using Bluetooth Classic and BLE, enabling faster client integrations and partner-driven revenue growth. Developed JNI bridges in C++ for real-time BLE/ECG data processing and implemented real-time ECG plotting, adhering to ISO 13485 standards.

Android SDK Bluetooth Classic BLE JNI C++ECG ISO 13485 iText PDFBox Protobuf TCP IP

Software Engineer

I-MEDZ & Philips Innovation Campus

Oct 2013 - Sep 2015 (1 year 11 months)

Developed Android applications and collaborated with cross-functional teams on healthcare-focused mobile solutions. Contributed to Android software development as part of a concurrent engagement across both organizations.

Android Java Healthcare