Vladyslav

VLADYSLAV ZAITSEV
Junior .NET Developer
Passau, Germany | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | LinkedIn | GitHub

PROFESSIONAL SUMMARY
Junior .NET Developer with commercial backend experience in C# and ASP.NET Core, gained alongside a prior role as a NOC
Engineer supporting live production infrastructure. Builds RESTful Web APIs using Clean Architecture, Entity Framework
Core, and LINQ against MS SQL Server and PostgreSQL, applying OOP and SOLID principles for long-term maintainability.
Validates changes with xUnit, NUnit, and Moq inside GitHub Actions and GitLab CI/CD pipelines. Brings a reliability-focused
perspective from 24/7 infrastructure monitoring and ITSM-based incident handling, currently expanding into authentication
(JWT/Identity) and CQRS to progress toward Pre-Middle-level backend engineering.

TECHNICAL SKILLS
Languages: C#
Backend Frameworks: ASP.NET Core (Web API, MVC)
Data Access & DB: Entity Framework Core, LINQ, MS SQL Server, PostgreSQL, SQLite
Architecture: OOP, SOLID, Clean Architecture, Design Patterns, Dependency Injection, MVVM
API & Testing: RESTful API Design, xUnit, NUnit, Moq, Unit & Integration Testing
DevOps & Tools: Git, GitHub, GitLab, GitHub Actions, GitLab CI/CD, Docker, Azure (basic)
Currently Learning: JWT/ASP.NET Identity, CQRS + MediatR

PROFESSIONAL EXPERIENCE
Junior .NET Developer — Provectus (Remote) Jan 2025 – May 2026
• Built and maintained backend services in C# and ASP.NET Core Web API supporting live application functionality
• Designed RESTful APIs around Clean Architecture, separating domain, application, and API layers for maintainability
• Implemented data access with Entity Framework Core and LINQ against MS SQL Server and PostgreSQL, covering
CRUD flows and business validation
• Authored unit and integration tests (xUnit, NUnit, Moq) to reduce regression risk on core business logic
• Refactored legacy code and fixed bugs, improving readability and reducing duplication
• Automated build and test workflows using Git-based CI/CD pipelines (GitHub Actions, GitLab CI/CD)
NOC Engineer — Provectus (Remote) Jul 2024 – Dec 2024
• Monitored network infrastructure and critical services around the clock, maintaining uptime across a 24/7 rotation
• Triaged first-line incidents across network, server, and application layers, escalating with structured diagnostics
• Investigated logs and monitoring dashboards to isolate root causes of recurring incidents; documented resolutions to ITSM
standards

PROJECTS
TopCryptoFromCoinCap — C#, REST API, MVVM
• Built a Windows desktop application using MVVM architecture; integrated a third-party REST API (CoinMarketCap) to
display live cryptocurrency pricing data
Chess Online — github.com/ViscountTracker/ChessOnline — C#, OOP, Unity
• Built an online two-player chess application, applying OOP design to model game state and move validation
TheLiteraryHub — C#, REST API
• Built a bookstore web application consuming a REST API, with clean separation of API, logic, and presentation layers
EDUCATION & COURSES
National Aerospace University "Kharkiv Aviation Institute" — 2016 – 2021 — Bachelor's Degree in Computer
Engineering
FoxMinded School (C# Start, C# Mentoring); ITVDN (C# Basic, Entity Framework Basic, Unit Testing C#)

LANGUAGES
Ukrainian — Native | Russian — Fluent | English — B1 (Intermediate) | German —B1