Daniel Kostoski

I’m a Junior Development Specialist focused on building end-to-end systems across Telekom MK’s payment and identity platforms. I work full-stack, combining Angular with Spring Boot to ship secure, reliable user experiences.

In my current role, I’ve worked on payment services spanning Redis caching, Kafka event processing, and third-party payment processor integration. I also support SSO and authentication flows, including login, registration, and user identity orchestration.

I’ve extended functionality into the mobile app ecosystem through webview features, coordinating frontend and backend integration. Alongside that, I contribute to development across user identity flows and payment web services.

Before this, I supported Telekom MK’s digital transformation initiatives by covering feature testing and rollout. I also performed defect diagnosis and resolution using Kibana log analysis, Postman, and targeted SQL updates, and I continue exploring high-impact improvements like Magenta AI prompt evaluation and refinement.