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Android
Graphic Design
Java
Kotlin
Mobile App Development
5.0
(6 reviews)
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$25 USD / hour
Flag of UAFlag of UA
kharkiv,
ukraine
$25 USD / hour
It's currently 10:14 am here
Joined August 10, 2020
0 Recommendations

Valerii O.

@valonis

5.0
(6 reviews)
5.0
(6 reviews)
3.4
3.4
$25 USD / hour
Flag of UAFlag of UA
kharkiv,
ukraine
$25 USD / hour
100%
Jobs Completed
100%
On Budget
100%
On Time
33%
Repeat Hire Rate

Mobile, Web Development and Design

I am in software development since 2001 and I have mature skills of core software architectural principals. I know very old staff, like Pascal, Delphi, Clipper, VB, Adaytum, essential classic, like HTML, CSS, JavaScript, Java, PHP, Python and many other languages and frameworks. My preferred (but not limited) development environments/ languages/ frameworks are: Android Studio, IntelliJ IDEA, Kotlin, Java, Korge, Firebase. Since 2019 I have switched completely to Mobile and Web development and specifically focused on Android OS. I work hand-in-hand with creative designer, who is really great and together we could create quality and efficient Android app or website. Examples of published apps are present at Google Play. We will ensure your project will be treated with high priority and attention, keeping focus on quality and outstanding design.
Freelancer
Android Developers
Ukraine

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Portfolio Items

Biological clock - track sleep and sync your day.

Mobile application based on circadian rhythms theory, record and edit sleep time, calculate and analyze statistics and based on sleep science recommend bedtime - wake up.

Intuitive design, data analysis charts and recommendations text builder, Room database, custom views, Notifications, options for selection location from list and automatic identification, integrated AdMob.
Bioclock app
Biological clock - track sleep and sync your day.

Mobile application based on circadian rhythms theory, record and edit sleep time, calculate and analyze statistics and based on sleep science recommend bedtime - wake up.

Intuitive design, data analysis charts and recommendations text builder, Room database, custom views, Notifications, options for selection location from list and automatic identification, integrated AdMob.
Bioclock app
Biological clock - track sleep and sync your day.

Mobile application based on circadian rhythms theory, record and edit sleep time, calculate and analyze statistics and based on sleep science recommend bedtime - wake up.

Intuitive design, data analysis charts and recommendations text builder, Room database, custom views, Notifications, options for selection location from list and automatic identification, integrated AdMob.
Bioclock app
Biological clock - track sleep and sync your day.

Mobile application based on circadian rhythms theory, record and edit sleep time, calculate and analyze statistics and based on sleep science recommend bedtime - wake up.

Intuitive design, data analysis charts and recommendations text builder, Room database, custom views, Notifications, options for selection location from list and automatic identification, integrated AdMob.
Bioclock app
Biological clock - track sleep and sync your day.

Mobile application based on circadian rhythms theory, record and edit sleep time, calculate and analyze statistics and based on sleep science recommend bedtime - wake up.

Intuitive design, data analysis charts and recommendations text builder, Room database, custom views, Notifications, options for selection location from list and automatic identification, integrated AdMob.
Bioclock app
UX/UI design for FYREPlace application with detailed description of 15 screens, colors, original images.
UX/UI design of FYREPlace app

Reviews

Changes saved
Showing 1 - 5 out of 6 reviews
Filter reviews by: 5.0
$20.00 CAD
The Real Deal. Good to work with
Android
H
Flag of CA Tanveerpal O. @hollywoodnorth76
10 days ago
5.0
$300.00 USD
I am not just happy, I am excited about the project we are working on together.
Website Design
Software Architecture
Software Testing
Kotlin
User Avatar
Flag of US George K. @SwarmShepherd
1 month ago
5.0
$50.00 USD
Totally satisfied, and he AGILE too.
Graphic Design
Animation
User Avatar
Flag of US George K. @SwarmShepherd
1 month ago
5.0
$50.00 USD
great work thank yiu
Graphic Design
Mobile App Development
Android
Hire me
Kotlin
User Avatar
Flag of AE Jad T. @jadtarcha
2 months ago
5.0
$50.00 USD
Excellent
Graphic Design
Mobile App Development
Android
Hire me
Kotlin
User Avatar
Flag of AE Jad T. @jadtarcha
2 months ago

Experience

Full Stack Developer

Self Employed
Jan 2019 - Present
Kotlin, Java, SQLite, REST API, Volley, JSON, Room database, multithreading/ coroutines, Firebase back-end, custom views, Androidx Jetpack, clean MVVM architecture etc. UX/UI design, Wireframing, svg, vector graphics.

Manager Engineering department

PMI
Sep 2011 - Jan 2019 (7 years, 4 months)
projects management, technical industrial solutions, various engineering solutions

Manager production, quality assuarance

PMI
Apr 2004 - Sep 2011 (7 years, 5 months)
Managing production departments, establishing quality assuarance processes, ISO 9001:2000 standard compliance audits.

Education

Master of Science - Electronics and Software Engineering

National Aerospace University -'Kharkiv Aviation Institute', Ukraine 1993 - 1999
(6 years)

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Top Skills

Android
4
Graphic Design
3
Mobile App Development
3
Kotlin
3
Java

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