Олег

OLEG GOLUB
.NET Developer [open contact info](look above in the "contact info" section), [open contact info](look above in the "contact info" section)
[open contact info](look above in the "contact info" section)
https://github.com/oket23
SUMMARY
Motivated .NET Backend Developer with hands-on experience in C#, ASP.NET Core, and EF Core, focused on building
reliable and maintainable RESTful APIs, optimizing SQL-based data access, and enforcing clean, well-structured code.
Oriented toward scalable backend architectures, effective problem-solving, and delivering backend solutions that meet
real-world product and business requirements.

SKILLS
Programming Languages: C#, SQL (PostgreSQL, MSSQL)
Frameworks & Libraries: .NET, ASP.NET Core Web API, Entity Framework Core, Dapper, LINQ
Architecture & Design: Microservices, Clean Architecture, REST API, OOP, SOLID
DevOps & Infrastructure: Docker, Redis, YARP, Git, GitHub Actions (CI/CD)
Tools & Testing: Postman, Swagger, Serilog, xUnit, JWT
Frontend: React, TypeScript, JavaScript (Basic)
Soft Skills: Team Leadership, Teamwork, Problem Solving, Adaptability, Effective Communication.

LANGUAGES
English - Pre-Intermediate Ukrainian - Native

PROJECTS
Steam Friends Tracker, Backend / Frontend Nov 2025 - Dec 2025

Stack: .NET 9, ASP.NET, SignalR, YARP (Reverse Proxy), EF Core, PostgreSQL, Redis, Docker, React, TypeScript,
TailwindCSS, Zustand, TanStack Query
Description: Engineered a real-time observability platform for tracking Steam user activity. The solution features a
robust microservices backend with event-driven updates and a reactive SPA frontend
Role: Full Stack Developer (.NET + React)
Architected a microservices ecosystem (Auth, Friends, Game) behind YARP Gateway, implementing service
isolation and centralized request routing.
Engineered a real-time event system using SignalR and background HostedServices to poll Steam APIs and push
state differentials instantly.
Implemented secure identity management integrating Steam OpenID 2.0 with custom JWT issuance
(Access/Refresh tokens) and Gateway-level validation.
Optimized external API usage by implementing Redis caching strategies to mitigate Steam rate limits and reduce
latency.
Developed a React 19 SPA utilizing Zustand for global state and TanStack Query for efficient server-state
synchronization.
Game Stats Microservices Ecosystem, Github Jun 2025 - Jul 2025
Stack: .NET 9, ASP.NET, YARP (Reverse Proxy), Docker, Redis, EF Core, Serilog, Telegram.Bot API
Description: Developed a microservices-based system for aggregating Dota 2 statistics with a focus on scalability and
service modularity. The system integrates external OpenDota API data and delivers it to users via a Telegram Bot.
Role: Backend Developer
Architected modular microservices for Heroes, ProPlayers, and ProTeams using .NET 9 based on Bounded
Contexts principles.
Built an API Gateway with YARP to unify routing and hide internal microservices complexity.
Containerized all services with Docker and orchestrated them using Docker Compose for consistent deployment.
Integrated Redis distributed caching to reduce latency and minimize calls to the external OpenDota API.
Implemented structured logging with Serilog (console + rolling file sinks) and correlation IDs for request tracing.
Developed a Telegram Bot interface that communicates with the backend to provide real-time game statistics.

EDUCATION
Ternopil National Technical University, Bachelor of Computer Science 2025 - 2029
IT STEP Computer Academy, Software development 2023 - 2025