✅ Responsibilities:Designing and implementing backend services from scratchMaking technical decisions with a real impact on system architectureDeveloping scalable services used by tens of thousands of usersBuilding distributed systems based on microservices and asynchronous communicationActively improving performance, reliability, and maintainabilityWriting and maintaining automated tests as a core part of developmentUsing 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 KotlinStrong, hands-on Kotlin expertiseExperience with Spring Boot or Ktor in production systemsSolid knowledge of Spring SecurityConfidence working with Gradle using Kotlin DSLExperience with relational databases, especially PostgreSQLGood understanding of microservice architecture, messaging systems, and design patternsDaily use of testing frameworks such as JUnit or KotestOpenness to using AI tools as part of your development workflow🌟 We offer:Long-term, stable cooperationNo legacy code or heavy technical debtHigh autonomy and influence over technical directionModern backend stack and engineering-driven cultureFocus on quality, scalability, and long-term solutions