Остап

Ostap Haivanovych
Lviv, Ukraine [open contact info](look above in the "contact info" section) 9uyone guy0n3 9uyone

Junior .NET Developer with hands-on experience building backend services, RESTful APIs, and microservices.
Practical background in C# / ASP.NET Core, asynchronous programming, Docker, and relational/NoSQL databases.
Focused on writing clean, testable code and eager to contribute to commercial projects within a collaborative team.

SKILLS
Languages / Core concepts Frameworks / ORM
C# (LINQ, TPL), SQL, C++, Python, Javascript / .NET 10, ASP.NET Core (Web API, MVC), .NET
Typescript Framework 4.8 (WinForms), EF Core, React (MUI),
FastAPI
Databases
PostgreSQL, MySQL, MS SQL Server, Redis, MongoDB DevOps / Networking / Infrastructure
Git, Docker, Docker Compose, OpenWrt/Networking,
Tools / Testing GitHub Actions, Azure, Nginx
RabbitMQ, REST API, Swagger/OpenAPI, Postman,
xUnit

EXPERIENCE
Software Engineer (.NET / C#), Graduation / Complex pet project 12.2025 – 06.2026
Project: FlowAggregate — distributed data ingestion & analytics platform
Engineered a distributed backend platform for real-time data ingestion, time-series
analytics and automated reporting, featuring an interactive web dashboard..
Key achievements & responsibilities:
Developed microservices using C# and Clean Architecture principles; configured
•

RESTful APIs with Ocelot API Gateway.
Built a responsive SPA using React and MUI (Material UI) to visualize real-time time-
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series analytics, metrics charts, and system status.
Built event-driven pipelines with RabbitMQ (MassTransit) for async processing and
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integrated Hangfire for scheduled background tasks.
Configured data storage using MongoDB for document data, Redis for caching,
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utilizing LINQ for data querying.
Implemented statistical time-series algorithms, integrated OpenAI API for insights,
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and built a dynamic C# Reflection plugin system.
Covered core logic with xUnit tests and containerized services using Docker / Docker
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Compose.
Environment / Tech stack: C#, .NET 10, ASP.NET Core, Redis, MongoDB, RabbitMQ,
Docker, xUnit, Git.

EDUCATION
Bachelor of Computer Science, Ukrainian National Forestry University 09.2022 – 06.2026

LANGUAGES
Ukrainian — Native English — B1

ADDITIONAL EXPERIENCE
Musixmatch , Ukrainian Lyrics Curator Specialist 05.2022 – Present
Curate, transcribe, and sync Ukrainian song lyrics for major streaming platforms,
• Core contributor
ensuring top-tier accuracy and official verification status.
Review community contributions, tag song structures, and mentor contributors via
•

Slack according to platform guidelines.