Mykhaylo Terentyak

Mykhaylo Terentyak

WPF, Silverlight, Windows Phone, WinRT Architect & Consultant

Dolyna, Ukraine



What's the difference?

I am founder and CEO of Blackthorn Vision company that was founded in 2008 in Lviv, Ukraine as a custom development provider specializing in development using Microsoft technologies.

Our main specialization lies in desktop, web and mobile applications development using Microsoft technologies (WPF, Silverlight, ASP.NET, Windows Phone, WinRT). We can offer an entire package: from initial concepts to final delivery of an outsourced project of any size.

Please feel free to contact me anytime to di…


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Work History & Feedback

Create proof-of-concept WPF MVVM app using DevExpress WPF controls

“Mykhaylo is a great WPF developer and we enjoyed working with him.”
518 hrs @ $16.67/hr
Earned $8,632

UI/UX for WPF project

“Mykhaylo and his group were quite helpful in getting some required work out the door. If I have need of their services in the future I will gladly reconnect.”
Fixed Price $390


“Excellent team”
Fixed Price $400

WPF Creator

“Mykhaylo was very prompt in his communications and made sure he understood the problem before beginning to work on it.”
16 hrs @ $16.67/hr
Earned $267

Connect an Existing MVVM Silverlight Project to database

“Mykhaylo is a model oDesk contractor. He has great communication skills, always completes work on deadline, and has gone above and beyond, working long hours and many late nights with us. He is great at understanding work assignments through emails, and his knowledge of Silverlight and other programming aspects of the ever-changing Microsoft platform is top-notch. It was a pleasure working with him and I hope we will be working together again soon.”
560 hrs @ $22.22/hr
Earned $13,036

Advanced C# WPF Graphics Work

“Mykhaylo is a very good WPF developer. Unfortunately our project is put on hold until at least next month. Will use again.”
483 hrs @ $24.44/hr
Earned $11,793
Tests Taken
Name Percentile Score

ASP.NET 2003 Test


ASP.NET with SQL Server Test


Dot Net Fundamentals Test


HTML 4.01 Test


Programming with C# Test


U.S. English Basic Skills Test


Upwork Readiness Test for Independent Contractors and Company Managers