Leonid is available for hire

Leonid Golberg

Verified Expert in Engineering

Mobile Apps Developer

Location

Tel Aviv-Yafo, Israel

Toptal Member Since

August 11, 2017

Leonid has a decade of experience with Java, C++, and C in the mobile app domain. He's worked with major OEMs, including Samsung Electronics, and Sony Mobile, among others. Over the past several years, he worked with the Android platform—including app development and support, framework (bug-fixing and feature implementation), Android HAL adaptation, and Android kernel work (debugging and bug-fixing). Leonid worked in teams of all sizes, from two to over 50 members.

Java Android Android SDK C C++Android NDK Git Android Studio Kotlin Linux JSON Jira Gradle REST APIs Retrofit

Portfolio

SWTecNN

Kotlin, Android

Harman

Android

Samsung R&D Russia

Java

Experience

C++ - 10 years C - 10 years Mobile Apps - 10 years Android SDK - 10 years Java - 8 years Android - 7 years Android NDK - 5 years Kotlin - 2 years

Availability

Part-time

Preferred Environment

Git, Android Studio

The most amazing...

...project I've worked on is a custom Java virtual machine for Android devices.

Work Experience

Principal Software Engineer

2018 - PRESENT

SWTecNN

Developed an Android application with a cross-platform native library written on C++14.
Implemented the responsible UI using modern Kotlin best practices.
Created the learning materials for new Java to Kotlin developers.

Technologies: Kotlin, Android

Software Engineer

2014 - 2018

Harman

Implemented the new UI and functionality for a PIM application for Android.
Developed a UI and functionality; also bug-fixed a health application for Android-based STBs.
Fixed the bugs in Android Bluetooth HAL and handled the audio routing for TV entertainment systems based on Android.
Implemented the intelligence service IPC communication protocol, QML communications, and a core service functionality for a smartphone that was based on MER OS.

Technologies: Android

Software Engineer

2012 - 2014

Samsung R&D Russia

Generated the C89 code for several Java features such as virtual function support and more.
Patched up an Android system to support running AOT compiled code.

Technologies: Java

Software Engineer

2008 - 2012

Teleca

Supported a camera application and camera HAL; ported it from Android Gingerbread to Android ICS and bug-fixed.
Implemented the new UI, optimized the performance/memory usage, developed features and bug-fixed the following Android applications: calling UI, home screen, calendar, contacts, and more.
Developed new widgets using a C++ Skia library, event propagation, and improved an RML player functionality.
Implemented new features, monitored the filesystem improvements, bug-fixed, localized, and developed the UI for a Symbian S60 application.

Technologies: Android, Java, C++

Experience

Health Application

The project goal is to develop a health application for STB on an Android functionality: communicate with the server and to send/receive biometric data and information messages via an MQTT protocol.

Electronic Billboard App Porting

I ported an iOS application to Android. The application contains several screens like a list of messages from different users and a chat functionality. I also developed a back end to send/receive data with a REST API, added push notification support, integrated Crashlytics, and provided Fabric support.

Skills

Languages

Java, Kotlin, C, C++, Bash Script

Platforms

Android, Linux, Parse Server

Frameworks

Android SDK

Tools

Android NDK, Android Studio, Git, Eclipse IDE, Jira, Gradle

Other

Mobile Apps

Libraries/APIs

Parse SDK, Picasso, Firebase Android SDK, REST APIs, Retrofit

Paradigms

Scrum

Storage

JSON, SQLite

Education

2004 - 2010

Master's Degree in Mathematics and System Programming

N. I. Lobachevsky State University of Nizhny Novgorod - Nizhny Novgorod, Russia

Collaboration That Works

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