click
Roman Grebinnyk
Drop Here

Roman Grebinnyk

Web, desktop, mobile Developer, Team Leader, Architect

$44.44/hr

Kiev, Ukraine


Roman Grebinnyk has added 15 portfolio pieces. Create an account to review them.

---Upwork has recognized me as top 1% Developer and as ... moreone of their top Mobile Developers and Web Developers--- I have good experience in: - Web development (native and server side) - Desktop development on windows - Metro development (Windows 8/10 apps) - Mobile development on iOS, Android, Windows Phone - Good experience in databases: relational, nosql, runtime storages - 24/7 systems, SOA, SaaS, microservices, RabbitMQ, high loaded systems - Project Management, Team Leader experience. Including Agile stack on methodologies, Scrum etc Working in outsourcing companies and freelance more than 8 years. Looking forward for big enterprise projects to provide best results. less

Overview

---Upwork has recognized me as top 1% Developer and as one of their top Mobile Developers and Web Developers--- I have good experience in: - Web development (native and server side) - Desktop development on windows - Metro development (Windows 8/10 apps) - Mobile development on iOS, Android, Windows Phone - Good experience in databases: relational, nosql, runtime storages - 24/7 systems, SOA, SaaS, microservices, RabbitMQ, high loaded systems - Project Management, Team Leader experience. Including Agile stack on methodologies, Scrum etc Working in outsourcing companies and freelance more than 8 years. Looking forward for big enterprise projects to provide best results.

Roman Grebinnyk
Drop Here

Roman Grebinnyk

$44.44 /hr

Web, desktop, mobile Developer, Team Leader, Architect

Kiev, Ukraine

Overview

---Upwork has recognized me as top 1% Developer and as one of their top Mobile Developers and Web Developers--- I have good experience in: - Web development (native and server side) - Desktop development on windows - Metro development (Windows 8/10 apps) - Mobile development on iOS, Android, Windows Phone - Good experience in databases: relational, nosql, runtime storages - 24/7 systems, SOA, SaaS, microservices, RabbitMQ, high loaded systems - Project Management, Team Leader experience. Including Agile stack on methodologies, Scrum etc Working in outsourcing companies and freelance ... moremore than 8 years. Looking forward for big enterprise projects to provide best results. less

Roman Grebinnyk has added 15 portfolio pieces. Create an account to review them.

Work History and Feedback

  • Wine Tasting App Developer Needed

    Apr 2014 - Present
    Job in progress

    2,198 hours

    $33.33 / hr
    $73,259.48 earned

  • Image recognition model development

    Aug 2015 - Sep 2015
    5.00
    good ones,will hire again!

    54 hours

    $44.44 / hr
    $2,384.94 earned

  • Mobile Location Based Social App (iOS)

    Dec 2013 - Apr 2014
    4.15
    Good work!

    74 hours

    $43.00 / hr
    $3,189.17 earned

  • Experienced Windows .NET Developer

    Mar 2014
    5.00
    Great work, very professional .Net developer
    Fixed Price

  • Agent Updates

    Nov 2013
    No feedback given
    $54.79 earned
    Fixed Price

  • ASP desktop application

    Aug 2013 - Sep 2013
    5.00
    Roman, is an outstanding professional developer, was always on time and deliver very high quality work. will certainly use him again.

    151 hours

    $50.00 / hr
    $7,558.33 earned

  • Need to update graphics in a program

    Jun 2012 - Feb 2013
    3.80

    190 hours

    $27.78 / hr
    $5,269.03 earned

  • Software develoment

    Feb 2012 - Dec 2012
    5.00
    A great Developer, always on time, gives an extra value. Recommended!

    204 hours

    $17.78 / hr
    $3,617.55 earned

  • .NET Client

    Jan 2012 - Jun 2012
    5.00
    Excellent contractor. Easy to work with. Good language skills and availability. I would work with them again.

    75 hours

    $17.78 / hr
    $1,324.95 earned

  • Develop utility 'GET/POST Http query'

    Jan 2012 - Feb 2012
    5.00
    If you have http then hire this man! He finished the task 4 times faster than anticipated (based on external quotes) and saved us a fortune. Hire him!

    2 hours

    $17.78 / hr
    $35.56 earned

  • Winform GDI/GUI Specialist with C# experience

    Nov 2011 - Feb 2012
    No feedback given

    166 hours

    $17.80 / hr
    $2,960.48 earned

  • View More (2)

Roman Grebinnyk has more jobs to show. Create an account to review them.

Tests

NameScore (out of 5)Time to Complete
Knowledge of .Net Framework 4.0 Skills Test4.15Top 30%32 mins
Programming with C# Test3.90Top 10%33 mins
Programming with C++ Test3.50Top 20%39 mins
or
Invite to Job
What's the difference?

100% Job Success
Top Rated
Work History
8,023 hours worked
42 jobs
Availability
Available
More than 30 hrs/week
24 hrs response time
Profile Link
Groups
Search for others