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Milos Jakovljevic
Verified Expert in Engineering
Software Developer
Belgrade, Serbia
Toptal member since March 6, 2016
Bio
Milos has worked on various projects in his career, from Android and iOS applications to cross-platform C++ development on games and applications. He has extensive experience in different spheres of software development, from initial conceptualization to architecting and developing, and finally delivering the product to consumers.
Portfolio
Johnson & Johnson
Android, Java, Realm, Swift, iOS
Leanplum Inc. (via Toptal)
SQLite, C#, JavaScript, Java, Objective-C
SmartLivez (via Toptal)
Bluetooth Low Energy (LE), C++, Swift, Objective-C
Experience
- iOS - 8 years
- Android - 8 years
- Objective-C - 8 years
- Java - 8 years
- C++ - 6 years
- Swift - 4 years
- JavaScript - 4 years
- Unity3D - 3 years
Preferred Environment
Git, JetBrains IDE, Xcode, OS X
The most amazing...
...app I've built was my 1st Android game, Offroad Kings, which was downloaded over half a million times.
Work Experience
Senior Software Engineer
2018 - 2020
Johnson & Johnson
- Created a template UI for iOS and Android rendered completely from JSON configurations which are fully customized by the back end.
- Developed new features and supported various apps.
- Contributed to the architecture and database optimization to ensure better performance and maintainability.
- Contributed to various infrastructure projects to ensure full automation of building and deploying both iOS and Android applications.
- Improved the security of both iOS and Android applications, making sure all Veracode guidelines are followed to ensure maximum user data privacy.
Technologies: Android, Java, Realm, Swift, iOS
Software Engineer
2016 - 2017
Leanplum Inc. (via Toptal)
- Developed various features for Android, iOS, and JavaScript SDK.
- Maintained and bug-fixed iOS, Android, JavaScript, and Unity SDKs.
- Developed and maintained various infrastructure projects to improve the quality of life of both developers and clients.
- Contributed to the architecture and database optimization to ensure better performance.
- Contributed to the design of APIs to ensure backward compatibility as well as new features.
- Worked on multiple optimizations and improvements to support scalability.
- Worked on unit tests from the ground up to provide more than 60% code coverage for both iOS and Android SDKs.
Technologies: SQLite, C#, JavaScript, Java, Objective-C
Senior iOS Developer
2016 - 2016
SmartLivez (via Toptal)
- Improved the app's architecture.
- Implemented various features which depended on CoreLocation, CoreData, and CoreBluetooth.
- Improved the GestureRecognizer which uses real-time data from various BLE Sensor to recognize gestures.
- Created various utility apps to provide real-world testing capabilities to an existing app.
- Improved app performance.
Technologies: Bluetooth Low Energy (LE), C++, Swift, Objective-C
Senior Mobile Software Developer
2011 - 2016
Critspot
- Developed, designed, tested, and published the game Offroad Kings for both on Android and iOS. It's a real-time multiplayer cross-platform game. Utilized a LibGDX engine to develop games for both Android and iOS (RoboVM) using Java. Created leader boards and achievements using Google Play Games and Game Center. Developed a real-time multiplayer with Google Play Games and Warp. Over 500.000 downloads on Android and iOS.
- Developed, designed, tested, and published the game Orbed: Smash and Blast for both on Android and iOS. Orbed: Smash and Blast - an Android/iOS cross-platform adventure game. Utilized the LibGDX engine to develop the game for Android and iOS (RoboVM) using Java. Implemented various SDKs.
- Developed Sisyphus Job for Android, and iOS. Utilized the Cocos2d-X engine to develop a game for Android and iOS using C++. Various techniques, algorithms, tools, and third-party frameworks used while developing.
- Developed Like "A" Laugh, an Android application similar to 9Gag, used for showing web content.
- Currently developing a real-time multiplayer cross-platform game for Android and iOS: OneTwoThree.
- Implemented various SDKs (AdMob, Google Analytics, Google Play Games, Game Center, Fortumo, Warp, and so on).
- Incorporated various techniques, frameworks, and tools while developing.
Technologies: Unity3D, Android NDK, OpenGL, Unreal Engine, Cocos2d-x, JavaScript, Python, Objective-C, Java, C, C++
Senior Mobile Software Developer
2014 - 2015
12Rockets
- Developed Wheelio which is an Andorid and iOS application for photo editing. It supports an adding-text-on-photos feature, has stickers, custom fonts, clip art, and image filters.
- Developed OnePaste which is an Android and iOS application that allows the user to seamlessly copy and paste from multiple devices. Currently only supports copying of plain text. Results are delivered instantly using push notifications.
- Worked on the back end for OnePaste using Java with Google App Engine.
- Developed Scanadu in collaboration with NASA which is an Android application that allows the user to do a fast health check. Used with multiple Bluetooth health devices like ECG, blood pressure, blood and urine lab tests, hearth rate, and much more.
Technologies: Android NDK, Android SDK, iOS, JavaScript, Python, Objective-C, C, C++, Java
Mobile Software Developer
2012 - 2015
PSTech
- Developed a Sony mobile email application.
- Built a Sony mobile calendar application.
- Created a Plantronics application for controlling Plantronics headsets with a widget to show current battery status of a headset.
- Developed the Sailing Tactician app for iOS and Android. It's an app for sailors which uses advanced algorithms to calculate the best route to the next buoy. It uses GPS, wind direction, currents, and Google/Apple maps where it displays the paths.
- Created a Sony mobile clock, alarm, and stopwatch application.
Technologies: Python, C++, Objective-C, Java, iOS, Android SDK
Experience
Scanadu Vitals
A mobile application that uses BLE technology to communicate with different health devices (ECG, Blood Pressure, Blood Oxidation, Urine Tests and more) to log, preview and diagnose potential diseases based on input parameters.
The application was developed in collaboration with NASA and doctors around the world to build proper algorithms to diagnose potential diseases.
The application was developed for XPRIZE competition and is not yet publicly available.
I was responsible for creating a library on top of the Android BLE implementation for easy management of connections, data transfer, and reliability of various BLE devices.
The application was developed in collaboration with NASA and doctors around the world to build proper algorithms to diagnose potential diseases.
The application was developed for XPRIZE competition and is not yet publicly available.
I was responsible for creating a library on top of the Android BLE implementation for easy management of connections, data transfer, and reliability of various BLE devices.
Sony Mobile - Email Application
Developed and maintained an Android application bundled with Sony Mobile phones.
I was responsible for the IMAP, POP3, and Microsoft Exchange protocols; adding features and reliability to existing code.
I was responsible for the IMAP, POP3, and Microsoft Exchange protocols; adding features and reliability to existing code.
Sony Mobile - Calendar Application
Developed and maintained an Android application bundled with Sony Mobile phones.
I was responsible for implementing new features and improving the performance and code reliability of custom components.
I was responsible for implementing new features and improving the performance and code reliability of custom components.
Sony Mobile - Clock, Alarm, and Stopwatch
Developed and maintained an Android application bundled with Sony Mobile phones.
Sailing Tactician - iOS, Android
Sailing Tactician is a smartphone app which helps sailing teams win regattas. It runs on iPhone, iPad, and Android devices.
Sailing Tactician will help you prepare for the race start, navigate you through the race field, and help you win the race by giving you accurate data about your current speed, position, heading, wind direction, VMG to mark/wind, distance and time to the next mark, and more.
I was responsible for developing the Android application, the planning, and porting features to the iOS application
Sailing Tactician will help you prepare for the race start, navigate you through the race field, and help you win the race by giving you accurate data about your current speed, position, heading, wind direction, VMG to mark/wind, distance and time to the next mark, and more.
I was responsible for developing the Android application, the planning, and porting features to the iOS application
Wheelio - Text on Photos for iOS
Wheelio is a photo editor that allows you to easily apply text, filters, and effects to your photos. Use different fonts and professionally designed photo filters to create stunning pictures you will love sharing with your friends.
My responsibility was to lead a team of three developers, architecting, and developing custom features.
My responsibility was to lead a team of three developers, architecting, and developing custom features.
Wheelio - Text on Photos for Android
Wheelio is a photo editor that allows you to easily apply text, filters, and effects to your photos. Use different fonts and professionally designed photo filters to create stunning pictures you will love sharing with your friends.
My responsibility was to lead a team of three developers, architecting and developing custom features.
My responsibility was to lead a team of three developers, architecting and developing custom features.
OnePaste - iOS / Android / OS X
Cross-platform application for iOS, Android and OS X to copy and paste data between devices with ease.
My responsibility was to lead a team of two developers (Android and iOS), developing a back-end using Google App Engine, OS X application, and cross-platform protocol.
My responsibility was to lead a team of two developers (Android and iOS), developing a back-end using Google App Engine, OS X application, and cross-platform protocol.
PaaS - Multiplayer Back-End for Game Developers
PaaS allows game developers to focus on their game and forget about low level communication protocols and build extraordinary multiplayer games with ease.
I was responsible for the low-level communication using UDP sockets and defining protocols written in C++.
Currently in development.
I was responsible for the low-level communication using UDP sockets and defining protocols written in C++.
Currently in development.
Plantronics - Headset Applications for Android
Built various apps for Plantronics using Bluetooth technology to monitor current state of devices.
Sisyphus Job for Android
Built a 2D cross platform game developed in Cocos2d-x.
Sisyphus Job for iOS
Built a 2D cross platform game developed in Cocos2d-x.
Orbed: Smash and Blast for iOS
Built a 2D cross platform game developed with LibGDX.
Orbed: Smash and Blast for Android
Built a 2D cross platform game developed in LibGDX.
Offroad Kings
Built a 2D cross platform game developed in LibGDX.
Contributed to an Open-Source Game Engine Cocos2d-x
Added a few features to an open-sourced game engine Cocos2d-x.
I'm an active member on the forums and I like to help other members with their problems.
I'm an active member on the forums and I like to help other members with their problems.
Education
2020 - 2021
Master's Degree in Software Engineering and Information Technologies
University of Novi Sad - Serbia
2015 - 2019
Bachelor's Degree in Information Technologies
University of Novi Sad - Serbia
2009 - 2013
Bachelor's Degree in Software Engineering
University of Belgrade - Belgrade, Serbia
Skills
Libraries/APIs
Node.js, Firebase Android SDK, FFmpeg, Firebase iOS SDK, React, OpenGL
Tools
Jenkins, Android NDK, Xcode, Android Studio, Gradle, Travis CI, Google Analytics, Git
Languages
JavaScript, Swift, Objective-C, C++, Java, C#, C, SQL, Python
Frameworks
iOS SDK, Cocos2d-x, Android SDK, ASP.NET MVC, RealmSwift, Unity3D, LIVE555, Boost, Unreal Engine
Paradigms
Scrum, App Development, Agile Software Development, Concurrent Programming, API Architecture
Platforms
Firebase, MacOS, Android, iOS, Heroku, Linux, Windows, OS X, Bluetooth Low Energy (LE), Google App Engine
Storage
SQLite, Redis, NoSQL, MongoDB, PostgreSQL, Realm
Other
Front-end Development, Freelancing, H264, H.265, Video Streaming, AVFoundation, TCP/IP, UDP, JetBrains IDE, Machine Learning, Computer Vision, Neural Networks, Code Architecture, Software Engineering, Boost.Asio, Google AdMob
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