Denis Kovalyonok
Senior Software Engineer at UNODC
Malaga, Andalusia, Spain
Summary
👤
Senior🎓
Top SchoolDenis Kovalyonok is a senior software engineer and seasoned team lead with over a decade of experience building user-focused web and desktop solutions across startups and global consultancies. He led development teams at EPAM Systems, driving UX-centric technical strategy and delivery, and now applies that leadership to mission-driven work at UNODC. His background spans full-stack .NET ecosystems, WPF, Silverlight-era rich clients, and modern web practices—evidence of a developer who bridges legacy systems and contemporary UX needs. As a former CTO and co-founder, he pairs hands-on engineering with product-minded decision making and mentorship. Based in Malaga, Spain, Denis brings a pragmatic blend of startup grit and enterprise discipline, often translating complex requirements into clear, auditable implementations. An understated strength is his longevity across evolving stacks, giving him rare depth in maintaining and modernizing long-lived applications.
6 years of coding experience
16 years of employment as a software developer
Higher technical college degree, Information System & Technologies, Higher technical college degree, Information System & Technologies at Minsk State Higher Radio and Technical CollegeBase state, Base state at CS 193
English, Russian
Github Skills (80)
xamarin-ios10
locationmanager10
camera10
smooch10
location-services10
xamarin-android10
rating-system10
user-location10
hockeyapp10
candidate9
parking9
localization9
rating9
marks9
api-client9
Programming languages (1)
Github contributions (5)
DenisKovalyonokSamples/ParkingFinder
Aug 2019 - Sep 2019
Xamarin Native Android sample for parking clients. Application tracks user location and finds the nearest parkings. Parkings with free car spaces showed for user on google maps as area. Each free car space get it's description, cost and working hours. Also app shows how to work with Yandex Geocode to procced with addresses.
Contributions:5 commits, 3 pushes, 1 branch in 29 days
yandexandroid-nativegoogle-mapsworking-hoursgeocode
DenisKovalyonokSamples/CandidateInterviewer
Sep 2019 - Oct 2019
.NET Core Web sample of candidate interviewer system. Solution includes: web site (ASP.NET Core Web Application), ORM (Entity Framework, Code First), Database (Microsoft SQL Server 2019). Web site allows job applicants to be tested in a selected subject. After passing the test, the system processes the results of the responses and displays a table with the final grades. The employer can see which of the candidates received the highest marks and contact them.
Contributions:48 commits, 41 pushes, 1 branch in 1 month
asp-net-core-web-apiweb-sitedisplaysdatabase-firstentity
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.