Vitalii

Vitalii Yarema
Senior .NET Software Engineer
E-mail: [open contact info](look above in the "contact info" section)
LinkedIn: [open contact info](look above in the "contact info" section)
Summary
Senior C# .NET Software Engineer with 10+ years of experience building desktop, web, and cloud applications using the full Microsoft technology stack. Strong background in developing and maintaining enterprise-level systems, microservices, and high-load applications. Skilled in modern .NET development, .NET MAUI, distributed systems, databases, and cloud platforms (Azure/AWS). Experienced working with international teams across the USA, Australia, and Europe. Focused on clean architecture, performance optimization, and delivering reliable, maintainable solutions.
Core Skills
Languages: C# (.NET), SQL, T-SQL, PL/SQL, JavaScript, TypeScript, C/C++, PHP
Backend: ASP.NET, Web API, REST, Entity Framework, Dapper, SignalR, Microservices
Frontend: Blazor, React, Angular, Vue, jQuery, HTML/CSS, Bootstrap
Desktop: WinForms, WPF, XAML
Mobile: .NET MAUI, XAML
Cloud & DevOps: Azure, Azure Service Bus, Azure Blob Storage, AWS, Docker, CI/CD, Jenkins, TeamCity, Azure DevOps
Databases: MS SQL, Oracle, PostgreSQL, MySQL, MongoDB, Azure SQL
Tools & Concepts: TDD, Unit Testing, Integration Testing, Automated Testing, Git, SVN, Jira, Swagger, Redis, WebSockets, Agile/Scrum
Professional Experience
Senior C# .NET Software Engineer — Ripple Operations (USA)
Dec 2024 – Sep 2026
• Developing distributed web services and backend modules using C# .NET, Web API, MS SQL, Dapper, Azure.
• Implementing new UI components with DevExpress and improving enterprise system functionality.
• Designing and optimizing REST APIs, improving performance and reliability.
• Refactoring legacy modules to modern .NET standards.
• Collaborating with distributed teams across Europe, USA, and Asia.
• Participating in code reviews, architectural discussions, and technical decision‑making.
• Troubleshooting production issues and improving system stability.
• Technologies: .NET 8, ASP.NET Web API, MAUI, DevExpress, MS SQL Server, Dapper, Azure, Azure Blob Storage, JavaScript
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Self-Employed Software Engineer
Dec 2023 – Nov 2024
• Delivered multiple custom software solutions for the USA-based clients using C# .NET 8, WinForms/WPF, ASP.NET, SQL, .NET MAUI.
• Built and enhanced web applications, desktop tools, automation utilities, and REST APIs.
• Designed application architecture, database schemas, and deployment pipelines.
• Implemented integrations with third‑party APIs and cloud services.
• Managed full SDLC: requirements gathering, planning, development, testing, deployment, and support.
• Improved client systems performance and reliability through refactoring and optimization.
• Communicated directly with clients, providing technical consulting and solution design.
Senior C# .NET Software Engineer — GlobalLogic (Ukraine)
Jun 2019 – Nov 2023
ResMed (USA/Australia) — Enterprise Desktop System
• Supported and enhanced a large enterprise WinForms/WPF application used by thousands of users.
• Modernized legacy modules, migrated components to newer .NET versions, and improved UI/UX.
• Implemented new business-critical features and optimized performance of heavy modules.
• Refactored outdated code, introduced clean architecture principles, and improved maintainability.
• Led modernization of core modules and mentored junior developers.
• Improved application stability by resolving complex production defects.
Deluxe Media (USA) — Microservices
• Developed and maintained media-processing microservices using ASP.NET Web API, React, JavaS-cript, Docker, PostgreSQL, AWS, LINQPad, DBeaver.
• Added new microservices and extended existing ones to support new workflows.
• Improved API performance and reduced processing time through optimization and caching.
• Enhanced system reliability by fixing production issues and improving monitoring/logging.
• Participated in architectural improvements and design of new service components.
• Collaborated with US-based teams in a long-term distributed environment.
C# .NET Software Engineer — Enamine (Ukraine)
May 2018 – Jun 2019
• Supported and extended internal CRM/ERM systems using WinForms, WPF, Oracle.
• Implemented major new features and refactored existing modules to improve performance.
• Integrated peripheral devices via COM ports, enabling automated data exchange.
• Developed and optimized Oracle stored procedures and backend logic.
• Created a VSTO Outlook add‑in for workflow automation.
C# .NET Developer — EPAM Systems (Ukraine)
Oct 2017 – Apr 2018
• Worked on an ASP.NET Web API + AngularJS single‑page application.
• Developed backend services and integrated frontend components.
• Participated in API design, data modeling, and performance optimization.
C# .NET Developer — DDC Digital Solutions (Ukraine)
May 2017 – Aug 2017
• Extended internal web applications using ASP.NET MVC, TypeScript, SQL.
• Developed backend modules and implemented new frontend components.
• Created and optimized SQL stored procedures.
C# .NET Developer — Breeze Software (Ukraine)
Apr 2016 – May 2017
• Supported and enhanced a municipal government website for Los Angeles, CA.
• Added backend functionality and updated frontend components using JavaScript and Razor.
• Worked with GIS‑related features and map‑based data visualization.
• Improved system usability and performance.
Education
Bachelor of Computer Science (Software Engineering) National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” 2016 – 2019