Vlad Sydiuk

I’m a Software Engineer with hands-on experience in building and maintaining backend systems using Java and Spring Boot. I specialize in developing RESTful APIs, designing databases, and implementing secure authentication and authorization mechanisms using OAuth 2.0 and Spring Security.

I’ve worked on both commercial and side projects, including HR systems, social platforms, and business solutions, where I handled backend architecture, database design, cloud deployment, and integrations with third-party services such as Telegram API. I’m comfortable working with microservices, real-time communication (WebSockets), and API documentation using Swagger.

I have experience deploying applications to AWS and Google Cloud, writing unit and integration tests with JUnit and Mockito, and working with PostgreSQL and MongoDB. I value clean, maintainable code, reliability, and clear communication within a team.