Денис

Denys Havryliak
.NET Software Engineer

Summary
Software Engineer with 4.5+ years of commercial experience, all gained while working at
SoftServe. Strong background in enterprise software development, backend systems, cross-
platform mobile applications, and interactive/visualization solutions. Experienced in full
software development lifecycle, cloud-based solutions, and Agile environments. Focused on
clean architecture, scalability, and high-quality, maintainable code.

Key Expertise
 Enterprise application development
 Backend and Web API development
 Cross-platform mobile applications (iOS / Android)
 Interactive and visualization solutions
 Cloud solutions on Microsoft Azure
 Clean architecture, SOLID principles
 Unit testing, code review, estimation

Technical Skills
Backend & Core

 C#, .NET Framework 4.7
 .NET 5 / 6 / 7 / 8
 ASP.NET Web API
 Blazor / Blazor Hybrid
 WinForms

Mobile

 MAUI / Hybrid MAUI
 Xamarin Native / Xamarin Forms
 React Native

Architecture & Frameworks

 MVVM architecture
 Evergine (.NET-based component-oriented industrial/visualization engine)

Data

 MS SQL Server
 PostgreSQL
  MongoDB
 Elasticsearch
 Entity Framework, ADO.NET
 Dapper, XPO

Cloud & Infrastructure

 Microsoft Azure (App Services, Functions, Service Bus, Blob Storage, Key Vault, App
Insights, Azure AD, VMs)
 Docker
 IIS

Testing

 xUnit, NUnit
 Moq
 FluentAssertions

Frontend

 JavaScript / TypeScript
 HTML / CSS

Professional Experience
.NET Software Engineer — SoftServe (2021 – 2026)

Commercial experience: 4.5+ years

Projects: 6+ production projects

 Backend development (Web API, business logic, integrations)
 Cross-platform mobile application development
 Development of Blazor, desktop, and visualization applications
 Development of interactive and visualization components using Evergine engine with
MVVM architecture
 Integration with external services (REST, OAuth2)
 Database design and query optimization
 Unit testing and code quality maintenance
 Task estimation and participation in planning
 Work in Agile/Scrum teams

Languages
English — C2 Proficient (EF SET)
Certificate: https://cert.efset.org/hNi3S1
Certifications
C# / .NET Certification (TestDome)
Certificate: https://www.testdome.com/certificates/5e5a957a7fe94c578ece075be8fa7c13

Education
Bachelor’s Degree in Computer Engineering
Lviv Polytechnic National University

Specialist Diploma — System Programming / Systems Engineer
Lviv Polytechnic National University