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
.NET Backend Developer with hands-on expertise in building scalable microservices, distributed systems, and RESTful
APIs using C#, ASP.NET Core, and PostgreSQL. Proficient in event-driven architecture (RabbitMQ, MassTransit) and
containerization (Docker). Passionate about Clean Architecture, performance optimization, and delivering production-
ready backend solutions.

SKILLS
Backend & Frameworks: C#, .NET 9/10, ASP.NET Core Web API, Entity Framework Core, Dapper, LINQ
Architecture & Design: Microservices, Clean Architecture, REST API, OOP, SOLID
Cloud, DevOps & Infrastructure: Docker, Docker Compose, Redis, YARP, Git, GitHub Actions (CI/CD), AWS
Messaging & Databases: RabbitMQ, MassTransit, PostgreSQL, MSSQL
Observability & Testing: OpenTelemetry, Jaeger, Serilog, Seq, xUnit, Postman, Swagger
Soft Skills: Team Leadership, Teamwork, Problem Solving, Adaptability, Effective Communication.
Frontend: React, TypeScript, JavaScript (Basic)

LANGUAGES
English - Intermediate Ukrainian - Native

EXPERIENCE
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.
JobBoard Microservices Platform, Github Dec 2025 - Jan 2026
Stack: .NET 10, ASP.NET Core, YARP (Reverse Proxy), RabbitMQ, MassTransit, PostgreSQL, EF Core, Redis, Docker,
OpenTelemetry, Serilog, JWT
Description: Engineered a production-grade, distributed recruitment platform connecting talents with opportunities, built
on Clean Architecture and an Event-Driven microservices model.
Role: Backend Developer
Architected a scalable microservices ecosystem with strict domain isolation (Identity, Recruitment, Notification)
behind a centralized YARP API Gateway for unified routing.
Enabled asynchronous background processing by integrating RabbitMQ and MassTransit, ensuring 100% reliable
delivery of email notifications
Implemented a robust and secure authentication flow utilizing JWT Access and Refresh Tokens with sliding expiration
and gateway-level validation.
Reduced database read operations by 40% and improved API response times by implementing Redis distributed
caching for job listings.
Containerized the entire ecosystem using Docker and orchestrated it via Docker Compose for consistent
development and deployment environments.

EDUCATION
Bachelor of Computer Science, Ternopil Ivan Puluj National Technical University (2025 — 2029)
Software Development, IT STEP Computer Academy (2023 — 2025)