Java SE 17 – приоритетный язык разработки, Kotlin 1.5.0 – вспомогательный
Spring: Spring Boot 2.3.0, Spring MVC, Spring Data, Spring Securitry, Spring WebFlux/Reactive Data, Spring Boot Actuator, Spring Integration. Spring Cloud: Spring Cloud Security, Spring Cloud Config, Spring Cloud Consul, Spring Cloud OpenFeign, Spring Cloud Netflix (Eureka, Hystrix, Zuul и т.д.)
SQL БД: PostgreSQL 14.0, MySql 5.5.62/MariaDB 10.6.3, Oracle 21c
NoSQL БД: MongoDb 5.0, Cassandra 3.11.10