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OLEKSANDR VOLOSHYN
Junior .NET Developer | ASP.NET Core | React
Dnipro, Ukraine | [open contact info](look above in the "contact info" section) | GitHub: https://github.com/SashaVolo
Email: [open contact info](look above in the "contact info" section)
SUMMARY
Junior .NET Developer focused on building REST APIs with ASP.NET Core, Entity
Framework Core and PostgreSQL. Developed pet projects with JWT authentication,
Swagger documentation, file upload and React frontend. Also mentor students in C#, OOP
and ASP.NET Core, which strengthened my communication and problem-solving skills.

TECHNICAL SKILLS
Backend: C#, ASP.NET Core, Web API, Entity Framework Core, LINQ

Databases: PostgreSQL, MS SQL Server, SQL

Frontend: React, TypeScript, HTML, CSS

Auth & Cloud: JWT, ASP.NET Core Identity, Cloudinary

Tools: Git, GitHub, Swagger, Postman, Docker basics

Concepts: OOP, SOLID, REST, Dependency Injection

Languages: Ukrainian (Native), English (B1 - Intermediate)

PROJECTS
Flashcards API | Spaced Repetition Educational Backend (GitHub)

Tech Stack: C#, .NET 10, PostgreSQL, Entity Framework Core, JWT, BCrypt, Swagger

Built a RESTful API for managing decks, flashcards and user progress using
ASP.NET Core and Entity Framework Core.

Implemented JWT authentication, BCrypt password hashing and centralized error
handling with standardized JSON responses.

Developed a custom Spaced Repetition System that calculates review intervals
based on user performance.

Luppiter | Knowledge Sharing Platform (Server GitHub / Client GitHub)

Tech Stack: React, TypeScript, Express.js, Node.js

Built a responsive knowledge-sharing platform with news feed, user profiles, post
creation, tag filtering and pagination.

Implemented JWT-based authentication flow with protected routes, token
persistence and modal login/register UI.

Created UX-focused features including dynamic themes, smooth page transitions,
smart image fallbacks and responsive layout.

Avalonia Weather App | Cross-Platform Desktop Application (GitHub)

Tech Stack: C#, Avalonia UI

Developed a cross-platform desktop weather application using C# and Avalonia UI.

Integrated external REST APIs to fetch, parse, and dynamically display real-time
meteorological data.

Used MVVM structure and local JSON storage to save selected cities and display
forecast data.

EXPERIENCE
IT School "World IT"

Full Stack C# Mentor & Instructor 06.2025 – 06.2026

Mentored students in core software engineering concepts, including C#
fundamentals, Object-Oriented Programming (OOP), and full-stack web development
(ASP.NET Core, React).

Guided the architecture and development of cross-platform desktop applications
using Avalonia UI.

Mathematics Teacher 03.2025 – 06.2026

Developed tailored educational plans and helped students build analytical and
algorithmic thinking.

EDUCATION
Oles Honchar Dnipro National University | Dnipro, Ukraine | Faculty of Applied
Mathematics

Major: 121 Software Engineering

Degree: Bachelor's Degree (Expected Graduation: 2028)