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$29 USD / hour
Flag of BULGARIA
sofia, bulgaria
$29 USD / hour
It's currently 6:41 AM here
Joined April 25, 2020
0 Recommendations

Boyan I.

@boyaniliev1

 4.5 (9 reviews)
6.5
6.5
100%
100%
$29 USD / hour
Flag of BULGARIA
sofia, bulgaria
$29 USD / hour
100%
Jobs Completed
100%
On Budget
84%
On Time
33%
Repeat Hire Rate

Senior Android Developer

I have over 20+ years in designing, developing, and delivering quality software for Windows, Embedded and Linux platforms and 5+ years in Android development. I am 100% focused in mobile projects now. Looking for mid-long term collaboration. Programming languages: Java, Kotlin Libraries/Tools: Firebase(database, authentication, analytics, notifications, Crashlytics, remote config), Eventbus, Objectbox, ObjectBox Sync, Pushy, Volley, Retrofit, Picasso, MQTT, Google Map Api, OpenStreetMap, GPS Location, Bluetooth, in-app purchases, social network API (Facebook, Google, Twitter, Instagram), AWS, Sockets, Barcode, QR scanners, Camera API, Google AdMob Local storages: SQLite, PaperDB Environments: Android Studio, Git, Team Foundation Server Back-end development: PHP, MySQL, NodeJS, socketcluster WEB: HTML5, jQuery, JavaScript
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Portfolio

7484526
This application is a fully customizable digital compass that is intended to be put on the dashboard of motorboats and help them navigate. There is also an option to send GPS coordinates and other data to a server in real time. The application displays the heading of the device, and its speed in different units. The application works both for IOS and Android, landscape and portrait. Client's location: ?? New Orleans, United States Period: August.2020 - TBD OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #AndroidStudio #FirebaseCrashlytics #github
Simple digital compass
This application is a fully customizable digital compass that is intended to be put on the dashboard of motorboats and help them navigate. There is also an option to send GPS coordinates and other data to a server in real time. The application displays the heading of the device, and its speed in different units. The application works both for IOS and Android, landscape and portrait. Client's location: ?? New Orleans, United States Period: August.2020 - TBD OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #AndroidStudio #FirebaseCrashlytics #github
Simple digital compass
This application is a fully customizable digital compass that is intended to be put on the dashboard of motorboats and help them navigate. There is also an option to send GPS coordinates and other data to a server in real time. The application displays the heading of the device, and its speed in different units. The application works both for IOS and Android, landscape and portrait. Client's location: ?? New Orleans, United States Period: August.2020 - TBD OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #AndroidStudio #FirebaseCrashlytics #github
Simple digital compass
This application is a fully customizable digital compass that is intended to be put on the dashboard of motorboats and help them navigate. There is also an option to send GPS coordinates and other data to a server in real time. The application displays the heading of the device, and its speed in different units. The application works both for IOS and Android, landscape and portrait. Client's location: ?? New Orleans, United States Period: August.2020 - TBD OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #AndroidStudio #FirebaseCrashlytics #github
Simple digital compass
This application is a fully customizable digital compass that is intended to be put on the dashboard of motorboats and help them navigate. There is also an option to send GPS coordinates and other data to a server in real time. The application displays the heading of the device, and its speed in different units. The application works both for IOS and Android, landscape and portrait. Client's location: ?? New Orleans, United States Period: August.2020 - TBD OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #AndroidStudio #FirebaseCrashlytics #github
Simple digital compass
7484288
This is a new Android launcher application that will help people use their phones more consciously. It's purpose is to give back people some control of their own behavior while using a phone. It replaces the standart Android launcher. When the screen turns on, the user decides what he is going to use their phone for that session. Then the user has access to those apps and the launcher doesn't allow the user to waste their time with other applications for the current session. Client's location: Netherlands Period: August.2020 - October.2020 OS: Android Language: Java Technology stack: #Firebase #Eventbus #Objectbox #Android #AndroidStudio #FirebaseCrashlytics #github
Android launcher application
This is a new Android launcher application that will help people use their phones more consciously. It's purpose is to give back people some control of their own behavior while using a phone. It replaces the standart Android launcher. When the screen turns on, the user decides what he is going to use their phone for that session. Then the user has access to those apps and the launcher doesn't allow the user to waste their time with other applications for the current session. Client's location: Netherlands Period: August.2020 - October.2020 OS: Android Language: Java Technology stack: #Firebase #Eventbus #Objectbox #Android #AndroidStudio #FirebaseCrashlytics #github
Android launcher application
This is a new Android launcher application that will help people use their phones more consciously. It's purpose is to give back people some control of their own behavior while using a phone. It replaces the standart Android launcher. When the screen turns on, the user decides what he is going to use their phone for that session. Then the user has access to those apps and the launcher doesn't allow the user to waste their time with other applications for the current session. Client's location: Netherlands Period: August.2020 - October.2020 OS: Android Language: Java Technology stack: #Firebase #Eventbus #Objectbox #Android #AndroidStudio #FirebaseCrashlytics #github
Android launcher application
This is a new Android launcher application that will help people use their phones more consciously. It's purpose is to give back people some control of their own behavior while using a phone. It replaces the standart Android launcher. When the screen turns on, the user decides what he is going to use their phone for that session. Then the user has access to those apps and the launcher doesn't allow the user to waste their time with other applications for the current session. Client's location: Netherlands Period: August.2020 - October.2020 OS: Android Language: Java Technology stack: #Firebase #Eventbus #Objectbox #Android #AndroidStudio #FirebaseCrashlytics #github
Android launcher application
7483392
This application will be used for many virtual marathons in Germany. Every player runs on his own, wherever he wants (so that people are not close to one another, because of the pandemic). The application sends the live data to a server. On the server, we can see a live scoreboard of all the participants, and also the track of each one. Client's location: Mainz, Germany Period: September.2020 - October.2020 Status: Testing OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #SQLite #AndroidStudio #FirebaseCrashlytics #github
Application for virtual running competition.
This application will be used for many virtual marathons in Germany. Every player runs on his own, wherever he wants (so that people are not close to one another, because of the pandemic). The application sends the live data to a server. On the server, we can see a live scoreboard of all the participants, and also the track of each one. Client's location: Mainz, Germany Period: September.2020 - October.2020 Status: Testing OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #SQLite #AndroidStudio #FirebaseCrashlytics #github
Application for virtual running competition.
This application will be used for many virtual marathons in Germany. Every player runs on his own, wherever he wants (so that people are not close to one another, because of the pandemic). The application sends the live data to a server. On the server, we can see a live scoreboard of all the participants, and also the track of each one. Client's location: Mainz, Germany Period: September.2020 - October.2020 Status: Testing OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #SQLite #AndroidStudio #FirebaseCrashlytics #github
Application for virtual running competition.
This application will be used for many virtual marathons in Germany. Every player runs on his own, wherever he wants (so that people are not close to one another, because of the pandemic). The application sends the live data to a server. On the server, we can see a live scoreboard of all the participants, and also the track of each one. Client's location: Mainz, Germany Period: September.2020 - October.2020 Status: Testing OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #SQLite #AndroidStudio #FirebaseCrashlytics #github
Application for virtual running competition.
This application will be used for many virtual marathons in Germany. Every player runs on his own, wherever he wants (so that people are not close to one another, because of the pandemic). The application sends the live data to a server. On the server, we can see a live scoreboard of all the participants, and also the track of each one. Client's location: Mainz, Germany Period: September.2020 - October.2020 Status: Testing OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #SQLite #AndroidStudio #FirebaseCrashlytics #github
Application for virtual running competition.
This application will be used for many virtual marathons in Germany. Every player runs on his own, wherever he wants (so that people are not close to one another, because of the pandemic). The application sends the live data to a server. On the server, we can see a live scoreboard of all the participants, and also the track of each one. Client's location: Mainz, Germany Period: September.2020 - October.2020 Status: Testing OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #SQLite #AndroidStudio #FirebaseCrashlytics #github
Application for virtual running competition.
6481609
Fleet management bluetooth chat Video 1: https://www.youtube.com/watch?v=RpfRgYNDT6U Video 2: https://www.youtube.com/watch?v=5nRbNtxmUOY
Fleet management bluetooth chat
Fleet management bluetooth chat Video 1: https://www.youtube.com/watch?v=RpfRgYNDT6U Video 2: https://www.youtube.com/watch?v=5nRbNtxmUOY
Fleet management bluetooth chat
6481600
Android smartphones are inoperable without a launcher, which comprises your home screen and the catalog of all the apps available on your device. That’s why every device comes with a default launcher pre-installed. This launcher allows for the tablets and smartphones that it is insalled on to look like a GPS device. It also allows access to just some of the functionalities of the Android operating system. It has 4 customisable buttons that can be binded in accordance to customer requirements. Video: https://youtu.be/Wl5VNlBrnoQ Time spend: 50+ hours. Technology stack: Android Studio, Java
Custom Android home screen launcher
6481631
Real Estate Android application Time spend: 80 hours. Technology stack: Android Studio, Java, Firebase, Authentication, Analytics, Volley, Objectbox
Real Estate Android application
7484526
This application is a fully customizable digital compass that is intended to be put on the dashboard of motorboats and help them navigate. There is also an option to send GPS coordinates and other data to a server in real time. The application displays the heading of the device, and its speed in different units. The application works both for IOS and Android, landscape and portrait. Client's location: ?? New Orleans, United States Period: August.2020 - TBD OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #AndroidStudio #FirebaseCrashlytics #github
Simple digital compass
This application is a fully customizable digital compass that is intended to be put on the dashboard of motorboats and help them navigate. There is also an option to send GPS coordinates and other data to a server in real time. The application displays the heading of the device, and its speed in different units. The application works both for IOS and Android, landscape and portrait. Client's location: ?? New Orleans, United States Period: August.2020 - TBD OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #AndroidStudio #FirebaseCrashlytics #github
Simple digital compass
This application is a fully customizable digital compass that is intended to be put on the dashboard of motorboats and help them navigate. There is also an option to send GPS coordinates and other data to a server in real time. The application displays the heading of the device, and its speed in different units. The application works both for IOS and Android, landscape and portrait. Client's location: ?? New Orleans, United States Period: August.2020 - TBD OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #AndroidStudio #FirebaseCrashlytics #github
Simple digital compass
This application is a fully customizable digital compass that is intended to be put on the dashboard of motorboats and help them navigate. There is also an option to send GPS coordinates and other data to a server in real time. The application displays the heading of the device, and its speed in different units. The application works both for IOS and Android, landscape and portrait. Client's location: ?? New Orleans, United States Period: August.2020 - TBD OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #AndroidStudio #FirebaseCrashlytics #github
Simple digital compass
This application is a fully customizable digital compass that is intended to be put on the dashboard of motorboats and help them navigate. There is also an option to send GPS coordinates and other data to a server in real time. The application displays the heading of the device, and its speed in different units. The application works both for IOS and Android, landscape and portrait. Client's location: ?? New Orleans, United States Period: August.2020 - TBD OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #AndroidStudio #FirebaseCrashlytics #github
Simple digital compass
7484288
This is a new Android launcher application that will help people use their phones more consciously. It's purpose is to give back people some control of their own behavior while using a phone. It replaces the standart Android launcher. When the screen turns on, the user decides what he is going to use their phone for that session. Then the user has access to those apps and the launcher doesn't allow the user to waste their time with other applications for the current session. Client's location: Netherlands Period: August.2020 - October.2020 OS: Android Language: Java Technology stack: #Firebase #Eventbus #Objectbox #Android #AndroidStudio #FirebaseCrashlytics #github
Android launcher application
This is a new Android launcher application that will help people use their phones more consciously. It's purpose is to give back people some control of their own behavior while using a phone. It replaces the standart Android launcher. When the screen turns on, the user decides what he is going to use their phone for that session. Then the user has access to those apps and the launcher doesn't allow the user to waste their time with other applications for the current session. Client's location: Netherlands Period: August.2020 - October.2020 OS: Android Language: Java Technology stack: #Firebase #Eventbus #Objectbox #Android #AndroidStudio #FirebaseCrashlytics #github
Android launcher application
This is a new Android launcher application that will help people use their phones more consciously. It's purpose is to give back people some control of their own behavior while using a phone. It replaces the standart Android launcher. When the screen turns on, the user decides what he is going to use their phone for that session. Then the user has access to those apps and the launcher doesn't allow the user to waste their time with other applications for the current session. Client's location: Netherlands Period: August.2020 - October.2020 OS: Android Language: Java Technology stack: #Firebase #Eventbus #Objectbox #Android #AndroidStudio #FirebaseCrashlytics #github
Android launcher application
This is a new Android launcher application that will help people use their phones more consciously. It's purpose is to give back people some control of their own behavior while using a phone. It replaces the standart Android launcher. When the screen turns on, the user decides what he is going to use their phone for that session. Then the user has access to those apps and the launcher doesn't allow the user to waste their time with other applications for the current session. Client's location: Netherlands Period: August.2020 - October.2020 OS: Android Language: Java Technology stack: #Firebase #Eventbus #Objectbox #Android #AndroidStudio #FirebaseCrashlytics #github
Android launcher application
7483392
This application will be used for many virtual marathons in Germany. Every player runs on his own, wherever he wants (so that people are not close to one another, because of the pandemic). The application sends the live data to a server. On the server, we can see a live scoreboard of all the participants, and also the track of each one. Client's location: Mainz, Germany Period: September.2020 - October.2020 Status: Testing OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #SQLite #AndroidStudio #FirebaseCrashlytics #github
Application for virtual running competition.
This application will be used for many virtual marathons in Germany. Every player runs on his own, wherever he wants (so that people are not close to one another, because of the pandemic). The application sends the live data to a server. On the server, we can see a live scoreboard of all the participants, and also the track of each one. Client's location: Mainz, Germany Period: September.2020 - October.2020 Status: Testing OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #SQLite #AndroidStudio #FirebaseCrashlytics #github
Application for virtual running competition.
This application will be used for many virtual marathons in Germany. Every player runs on his own, wherever he wants (so that people are not close to one another, because of the pandemic). The application sends the live data to a server. On the server, we can see a live scoreboard of all the participants, and also the track of each one. Client's location: Mainz, Germany Period: September.2020 - October.2020 Status: Testing OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #SQLite #AndroidStudio #FirebaseCrashlytics #github
Application for virtual running competition.
This application will be used for many virtual marathons in Germany. Every player runs on his own, wherever he wants (so that people are not close to one another, because of the pandemic). The application sends the live data to a server. On the server, we can see a live scoreboard of all the participants, and also the track of each one. Client's location: Mainz, Germany Period: September.2020 - October.2020 Status: Testing OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #SQLite #AndroidStudio #FirebaseCrashlytics #github
Application for virtual running competition.
This application will be used for many virtual marathons in Germany. Every player runs on his own, wherever he wants (so that people are not close to one another, because of the pandemic). The application sends the live data to a server. On the server, we can see a live scoreboard of all the participants, and also the track of each one. Client's location: Mainz, Germany Period: September.2020 - October.2020 Status: Testing OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #SQLite #AndroidStudio #FirebaseCrashlytics #github
Application for virtual running competition.
This application will be used for many virtual marathons in Germany. Every player runs on his own, wherever he wants (so that people are not close to one another, because of the pandemic). The application sends the live data to a server. On the server, we can see a live scoreboard of all the participants, and also the track of each one. Client's location: Mainz, Germany Period: September.2020 - October.2020 Status: Testing OS: Android, iOS Language: Dart Technology stack: #Flutter #Dart #iOS #Android #GPS #Navigation #Compass #Location #SQLite #AndroidStudio #FirebaseCrashlytics #github
Application for virtual running competition.
6481609
Fleet management bluetooth chat Video 1: https://www.youtube.com/watch?v=RpfRgYNDT6U Video 2: https://www.youtube.com/watch?v=5nRbNtxmUOY
Fleet management bluetooth chat
Fleet management bluetooth chat Video 1: https://www.youtube.com/watch?v=RpfRgYNDT6U Video 2: https://www.youtube.com/watch?v=5nRbNtxmUOY
Fleet management bluetooth chat
6481600
Android smartphones are inoperable without a launcher, which comprises your home screen and the catalog of all the apps available on your device. That’s why every device comes with a default launcher pre-installed. This launcher allows for the tablets and smartphones that it is insalled on to look like a GPS device. It also allows access to just some of the functionalities of the Android operating system. It has 4 customisable buttons that can be binded in accordance to customer requirements. Video: https://youtu.be/Wl5VNlBrnoQ Time spend: 50+ hours. Technology stack: Android Studio, Java
Custom Android home screen launcher
6481631
Real Estate Android application Time spend: 80 hours. Technology stack: Android Studio, Java, Firebase, Authentication, Analytics, Volley, Objectbox
Real Estate Android application

Reviews

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Showing 1 - 5 out of 9 reviews
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5.0
$625.00 USD
Navigation app or in-browser - Android
Hi did a really good job with this app - very satisfied!
Mobile App Development
GPS
Google Maps API
A-GPS
O
Flag of Anders H.
@oscand
•
1 year ago
1.8
€400.00 EUR
Build me an app for android
He didn't hand over the project as expected. The app was not working on my phone although it did it with him and he blamed my device about that. Actually, the problem was a known bug with Google due to the foreground service: "Context.startForegroundService() did not then call Service.startForeground [76112072] - Visible to Public - Issue Tracker" https://issuetracker.google.com/issues/76112072?pli=1 Then, he didn't make all the checks and tried to justify the issue incorrectly
Mobile App Development
Android
iOS Development
React Native
Bluetooth
A
Flag of Alejandro A.
@aleace88aam
•
3 years ago
5.0
$280.00 USD
Android Bluetooth app development
Good work on time. Recommended.
Mobile App Development
Android
User Avatar
Flag of Zsolt K.
@zsoltkaracsonyi1
•
3 years ago
5.0
$150.00 USD
Project for Boyan I.
Excellent, professional work. As usual.
Java
Mobile App Development
Android
Software Architecture
+1 more
User Avatar
Flag of Reiner K.
@reinerotto
•
3 years ago
5.0
$600.00 USD
Android App, similar to actual app "wireguard" (VPN)
Expert knowledge on Android. It was a very pleasure to work with him. Recommended supplier. Will definitely continue to work with such a professional.
Java
Mobile App Development
Android
Software Architecture
User Avatar
Flag of Reiner K.
@reinerotto
•
3 years ago

Experience

Senior Android Developer

Advanced GPS Technology
Nov 2015 - Mar 2020 (4 years, 4 months)
Senior Android Developer

Senior R&D Engineer

Omegasoft OOD
Oct 2011 - Oct 2015 (4 years)
Accounting software development. Borland Delphi 7, Embarcadero Delphi XE, Embarcadero Delphi XE7, MSSQL, Interbase/Firebird.

Software Architect, Senior R&D Engineer, Senior Build Engineer

Johnson Controls Electronics
Jun 2006 - Oct 2011 (5 years, 4 months)
Low level programming for embedded systems and real time control for industrial and automotive applications. Embedded programing, System integration, embedded C, embedded C++, C/C++, Visual C++, Green Hills MULTI for V800, CAN (Controller Area Network), LIN, EEPROM, DFA, PWM, I/O, UART, RFID 125Khz, RS232 Low level device driver development for NEC microcontrollers: RF(Radio frequency) low layer drivers; Low layer drivers for Immobilizers

Education

Master's degree, Computer engineering

Technical University Sofia, Bulgaria 1992 - 1998
(6 years)

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Top Skills

Mobile App Development 9
Android 9
Java 6
Software Architecture 5
Software Development 4

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