#4614We are looking for talented Senior Software Engineer to join our AI project in Europe. The ideal person will have hands-on experience with multiple backend frameworks, databases, and tools, enabling them to adapt to different project requirements and contribute to the development of robust applications.We use Kotlin, Spring Boot and reactive programming to build a core AI agent framework/platform enabling internal teams to easily develop, deploy, and scale their own AI agents within a shared infrastructure. Our California-based customer is an American global e-commerce leader, one of the most popular and successful websites on the Internet. It provides platform services by connecting millions of sellers and buyers in more than 190 markets around the world.Main Responsibilities: Design and develop a robust and extensible Kotlin framework and platform for configuring and managing AI agents Write clean, maintainable, and efficient code that complies with our coding standards Ensure the performance, quality, and responsiveness of the framework/platform Identify and correct bottlenecks and errors Help to maintain code quality, organization, and automatization Create and maintain technical documentation for the framework/platform Requirements: At least 5 years of proficiency in JAVA or Kotlin technologies Deep experience with the Spring Framework Experience with NoSQL databases (one year at least) Knowledge of different communication protocols such as REST, gRPC, and GraphQL Very good spoken and written knowledge of English language (C1) Nice to have: Familiarity with GenAI, AI agents, machine learning, and natural language processing concepts is a plus Experience with MCP, A2A, RAG is a big plus Experience with event-driven architecture Experience with Docker and Kubernetes Python experience is nice to have BSc or MSc in Computer Science, Engineering or relevant field Professional growth: Strong engineering culture Challenging projects and mature teams Personalized on-demand cross-company mentoring support enabling you to learn new things faster Plenty of opportunities to share knowledge and get more experience such as opportunity to mentor others, speak at events, and contribute to pre-sales Direct communication with the customer What we offer Competitive compensation package and comprehensive benefits. Opportunities for professional development within an innovative international environment. Collaborative workplace culture using the latest technologies.