Principal/Lead Backend Engineer (Java/Kotlin)

Must-have:A minimum of 8 years of experience in the development of web applications.A comprehensive understanding of SOLID principles, prevalent design patterns, and industry best practices.Proficiency in Java and Kotlin for backend development, with a willingness to acquire proficiency in Kotlin to produce clear, readable, and maintainable code.Demonstrated experience in container-based development (Docker, docker-compose, Kubernetes).The ability to write comprehensive and maintainable test code is essential.Experience in the utilization, design, and construction of GraphQL and Web Service APIs.Extensive experience with the Spring framework, including Spring Boot, Spring Data, Spring Security, Spring Batch, and Spring Cloud.Knowledge of Domain Driven Development and Onion/Clean Architecture.Substantial experience with MySQL or PostgreSQL, including performance tuning and optimization.Experience in Agile/Scrum software development methodologies.Proven experience in enhancing application security, performance, and operational efficiency.Experience leading projects as a team leader and providing mentorship to team members.A strong sense of ownership and accountability.Nice-to-have:Profound knowledge of security and performance best practices.Extensive knowledge of microservices architecture design and implementation.A strong willingness to learn and cultivate a deep understanding of new concepts.The ability to build and maintain application infrastructure on AWS.