Богдан

CV

Bohdan Olenin

Date of Birth: June 1, 2005

Place of Birth: Ukraine, Rivne region, Sarny city

Citizenship: Ukrainian

Marital Status: Single

Skills & Technologies

Programming Languages

C# — confident use in backend development, REST APIs, domain-driven design

Python — basic level (scripting, fundamentals, teaching basics)

Backend Development

ASP.NET Core — building RESTful Web APIs, controllers, middleware, filters

Entity Framework Core — code-first approach, migrations, relationships, PostgreSQL &
SQL Server providers

Blazor — building server-side and web UI applications

LanguageExt — functional programming concepts (Option, Result, immutability)
Architecture & Design

Clean Architecture / Layered Architecture

Domain-Driven Design (DDD) — entities, value objects, aggregates, domain services

SOLID principles — applied in projects

Design Patterns — Repository, Unit of Work, Mediator, Factory, Decorator, Strategy

Architectural Patterns — MVC, MVVM

Databases

PostgreSQL — main database for REST API projects

Microsoft SQL Server — relational database design and querying

Designing relationships, foreign keys, constraints, migrations

Testing

Integration Testing for REST APIs

xUnit — test framework

FluentAssertions — expressive and readable assertions

Testing CRUD operations, validation scenarios, and error cases (404, conflict, etc.)

Frontend & API Integration

REST API consumption from React

Working with HTTP requests (fetch)

Understanding of DTOs, request/response models

CORS configuration and client-server interaction

Basic React (JSX) — state, hooks, API integration

DevOps & Containerization

Docker — containerizing backend applications and databases

Docker Compose — running API + PostgreSQL locally

Environment configuration for development
Tools & Workflow

Visual Studio, Visual Studio Code

Git, GitHub — branches, commits, pull requests, code reviews

Debugging backend and integration issues

API testing and troubleshooting

Deployment & CI/CD

Basic understanding of CI/CD pipelines

Running applications in a local containerized environment

Preparing backend services for deployment

Professional Experience

2022 – Sales Manager at Moon Labs Tech

2024 – Teacher at Logika, Ostroh

Education​

2023 – Present – National University of Ostroh Academy

●​ Specialty: “Computer Science” – 122​

●​ Full-time studies, 3nd year​

Community Work Experience

2024 – Mentor at children’s camp “Dyvokrai”

2024 – Volunteer of student movement “Campus Ostroh”

​
Languages

●​ Ukrainian – Fluent (C1)
●​ English – Intermediate (B1)
●​ Polish – Basic (A2)​

📞 Phone: [открыть контакты](см. выше в блоке «контактная информация»)
✉️ Email: [открыть контакты](см. выше в блоке «контактная информация»), [открыть контакты](см. выше в блоке «контактная информация»)