✅ Responsibilities: Designing and implementing backend services from scratch Making technical decisions with a real impact on system architecture Developing scalable services used by tens of thousands of users Building distributed systems based on microservices and asynchronous communication Actively improving performance, reliability, and maintainability Writing and maintaining automated tests as a core part of development Using AI-assisted tools to speed up development and improve code quality 🧠 Required skills: At least 5 years of professional experience in backend development using Java or Kotlin Strong, hands-on Kotlin expertise Experience with Spring Boot or Ktor in production systems Solid knowledge of Spring Security Confidence working with Gradle using Kotlin DSL Experience with relational databases, especially PostgreSQL Good understanding of microservice architecture, messaging systems, and design patterns Daily use of testing frameworks such as JUnit or Kotest Openness to using AI tools as part of your development workflow 🌟 We offer: Long-term, stable cooperation No legacy code or heavy technical debt High autonomy and influence over technical direction Modern backend stack and engineering-driven culture Focus on quality, scalability, and long-term solutions