Don Chakkappan

IOS Engineer

Thrissur, Kerala, India12 yrs 9 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Reduced APK size by 85%, boosting user engagement.
Migrated legacy systems to modern architectures.
Mentored teams, enhancing code quality and efficiency.

Stackforce AI infers this person is a Mobile App Architect specializing in Fintech and Retail solutions.

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Skills

Core Skills

Mobile DevelopmentArchitecture & MethodologiesSecurity & Compliance

Other Skills

API OptimizationAPK OptimizationAgileAnalytics IntegrationAndroid DevelopmentAndroid NDKAndroid SDKAngularJSApp Tampering DetectionArduinoAutomated TestingBiometric AuthenticationC#CI/CDClean Architecture

About

Mobile App Architect with 12 years’ experience delivering scalable, high-performance mobile and cross-platform solutions across retail, enterprise, and fintech domains. Proven expertise in Kotlin, Jetpack Compose, Kotlin Multiplatform, React Native, Xamarin.Forms, Spring Boot, and secure mobile development. Recognized for leading high-impact projects, optimizing app performance by up to 85%, and mentoring teams for excellence. Strong advocate for automation, clean architecture, and user-focused design. CORE SKILLS Mobile Development - Android (Kotlin, Java), Jetpack Compose, Kotlin Multiplatform, React Native, Xamarin.Forms Backend & Integration - Spring Boot, REST APIs, C# Architecture & Methodologies - MVVM, Clean Architecture, Agile/Scrum, CI/CD, DevOps Security & Compliance - OWASP Mobile Security, SSL Pinning, Encrypted Room DB & Shared Preferences, Auth Token Management, App Tampering Detection, Security Testing (Burp Suite, MobSF, JadX, apk-mitm) Cloud & Deployment - AWS, GCP, Firebase Cloud Messaging Tools & Design - Figma, Git, Jenkins, JIRA, iMovie, Android Studio, Gradle, JUnit, Espresso, Postman, Firebase https://www.linkedin.com/in/don-chakkappan/ https://leetcode.com/u/donchakkappan/ https://www.youtube.com/@dsacapsules https://github.com/donchakkappan/android-api-testing-plugin

Experience

Falabella india

Senior Engineer

Apr 2022 – Present · 3 yrs 11 mos · Bengaluru, Karnataka, India · Hybrid

Migrated legacy KMP codebase to modern MVVM Clean architecture with Kotlin & Jetpack Compose, reducing technical debt by 40%.
Unified POS codebase for 4 business units, improving code reuse and cutting development time by 40% for new features.
Implemented CI/CD and automated testing suites (UI + Unit), reducing release cycle from 2 weeks to 3 days.
Designed reusable UI components in Compose, cutting UI development effort by 30%.
Mentored 6 developers, increasing code review efficiency and adoption of best practices.
Integrated app tampering checks and token-based authentication renewal strategies, reducing fraud attempts by 15%.

KotlinJetpack ComposeMVVMCI/CDApp Tampering DetectionMobile Development+1

Infosys

Technology Lead

Nov 2018 – Apr 2022 · 3 yrs 5 mos · Thiruvananthapuram Area, India · On-site

Architected modular design reducing APK size by 85% (50MB → 7MB), leading to 30% increase in daily active users.
Led team of 10 engineers, improving delivery predictability by 20% through Agile ceremonies and JIRA metrics tracking.
Introduced performance profiling and optimized API calls, improving app load time by 45%.
Integrated analytics and crash reporting, reducing app crashes by 60%.
Drove adoption of automated build pipelines, cutting integration failures by 40%.

Modular DesignPerformance ProfilingAgileAnalytics IntegrationMobile DevelopmentArchitecture & Methodologies

Nest information technologies pvt ltd

Software Engineer

Jan 2017 – Nov 2018 · 1 yr 10 mos · Cochin Area, India · On-site

Implemented OWASP mobile security standards, cutting vulnerability count by 60%.
Migrated MVP app to React Native, reducing maintenance costs by 35% and enabling faster feature parity.
Introduced secure biometric authentication and encryption modules, passing all external penetration tests.
Implemented SSL Pinning and encrypted local storage (Room DB + Shared Preferences), ensuring sensitive data protection.
Conducted penetration testing with Burp Suite, MobSF, JadX, and apk-mitm, achieving zero high-severity vulnerabilities before release.

OWASPReact NativeBiometric AuthenticationPenetration TestingMobile DevelopmentSecurity & Compliance

ges infotek

Software Engineer

Jul 2014 – Jan 2017 · 2 yrs 6 mos · Technopark , Trivandrum. · On-site

Created PWM driver with JNI for Android HMI refrigerators, improving alarm response speed by 20%.
Automated temperature monitoring with OpenCV + Apache POI, saving 15+ hours/week of manual work.
Integrated Excel report generation for manufacturing teams, reducing error rate by 25%.
Leveraged knowledge in BeagleBone MCU, Eclipse, Embedded Android, AOSP, NDK, JNI, Circuit Design, Oscilloscope.

JNIOpenCVTemperature MonitoringMobile Development

Kites softwares private limited

Software Engineer

Jun 2013 – Jun 2014 · 1 yr · Cochin Area, India · On-site

Implemented motion detection & gesture control with JavaCV, adding new product features that improved sales pitches.
Built OpenERP dashboard app in Python/PostgreSQL, reducing reporting time by 40%.
Leveraged knowledge in Java, OpenCV, JSP, Python, MySQL, HTML, CSS, SVN, Android, ADB, DDMS, SQLite, JUnit.

JavaCVOpenERPPythonMobile Development