Java version 14 Java version 12 Java version 13 CI/CD processes Java version 15 Elasticsearch Spring Boot Kotlin (2-3 years) Java version 11 Docker Kotlin Java version 17 Java version 16 Amazon S3 REST API SQL Version control systems (GitLab)

multithreading in Core Java development concepts development patterns Spring framework Spring Boot Java development Core Java microservices architecture relational databases distributed systems Spring framework principles relational database experience

Spring Boot framework Spring SQL RESTful services Java

Linux OS Docker Docker Compose Spring Boot framework PostgreSQL databases MySQL databases Java 17

NoSQL databases Postgres Spring Boot SQL databases CI/CD tools Kubernetes Code quality assessment CI/CD tools Jenkins Redis Distributed message brokers Kafka CI/CD tools Gradle CI/CD tools GitLab CI/CD tools Nexus CI/CD tools Docker Java 11

Hibernate SQL Java Kotlin Spring Framework Spring Boot Spring Data Spring MVC Spring GraphQL PostgreSQL OOP principles SOLID principles design patterns API development REST API development GraphQL writing Unit tests TDD principles Git

designing REST API microservices architecture Stream API Apache Maven query optimization Spring Framework Core Spring Framework Boot Spring Framework Cloud Spring Framework Data Spring Framework JPA Spring Framework Security Java Hibernate PostgreSQL Docker Kubernetes using REST API

Git Spring SQL Maven REST Java 8 Spring Boot for configuration Jira Confluence Kafka Sonar Java EE Jenkins Bitbucket Openshift

Messaging Artemis MQ Messaging Kafka SQL Spring framework cache Java core Spring framework web Open API Spring framework test identifying poorly written code fragments development for containerized environments Spring Cloud stack Spring framework data jpa unit testing Ignite basic design patterns profiling applications debugging applications finding memory leaks Hibernate framework Spring framework security

integration development RabbitMQ integration development Kafka Maven Spring Gradle Java microservices design software design patterns Oracle web services PostgreSQL REST integration development REST

Java 21+ commercial development REST API principles microservices architecture Kafka Linux command line usage clean code PostgreSQL writing queries in PostgreSQL indexing in PostgreSQL optimization in PostgreSQL Spring Boot Docker CI/CD environment maintainable code

automated testing Java SE version 19 upgrading legacy applications from Java 8 to Java 21 Java SE version 8 Java SE version 17 Java SE version 10 Java SE version 16 implement REST API basic data structures algorithms J2SE (Java core tools) transitioning applications to Spring Boot low-level Java development Java SE version 14 shared memory bits files multithreading Java SE version 15 Java SE version 11 design REST API analyzing logs Java SE version 20 Java SE version 9 Java SE version 13 refuting hypotheses about program behavior in real conditions profiling manual testing networking Java SE version 12 analyzing dumps high-performance systems validating hypotheses about program behavior in real conditions Java SE version 18 proposing hypotheses about program behavior in real conditions use REST API writing benchmarks Java SE version 21

Agile methodology in development Scrum framework in development Java technologies: Spring Java technologies: Maven Java technologies: Jenkins Waterfall methodology in development Java tools and technologies in software implementation projects Java technologies: Docker Java technologies: Git Bitbucket in team development Confluence in team development Jira software products in team development Java technologies: Hibernate Java technologies: SQL Java technologies: Kubernetes Java technologies: Gradle Java technologies: Openshift Java tools and technologies in software modification projects Java tools and technologies in software development Java technologies: Postgres

Spring Cloud Java Docker Kafka RabbitMQ CI/CD Jenkins CI/CD GitLab CI PostgreSQL microservices architecture JPA REST API WebClient Spring Boot clean and maintainable code code reviews Kubernetes MongoDB Hibernate

Kubernetes Docker RabbitMQ Java Spring framework GitLab NoSQL databases CI/CD

orchestration design patterns microservices architecture caching data with Hazelcast Linux management tools such as Ansible design principles Spring Java 11+ Binary Release Management CI/CD Scrum other relevant management tools DevOps pipelines containerization caching data with Redis Kanban Kafka Kubernetes caching data with Infinispan Spring Boot management tools such as Salt management tools such as Chef Java 11+ Spring Cloud

Version control systems Hazelcast Docker Java Enterprise development Postgres Distributed systems development Backend development in Java Kubernetes Quarkus framework Spring Boot framework Supporting microservices Message broker Microservices development Supporting high-load systems Elastic OpenShift Apache Solr Kafka Supporting distributed systems High-load systems development

REST API Unit testing Java 17 Spring ElasticSearch NoSQL MongoDB JPA Spring Boot

testing tools Java SE testing processes Hibernate WebSphere Application Server Tomcat Oracle databases PostgreSQL databases banking applications Java SOAP web services Restful API Java EE Apache Git Maven Spring testing automation tools high-load projects SOLID principles DRY principles microservices architecture

PostgreSQL Spring Data Spring Boot maintainable code Java Threads Spring Java Collections Hibernate efficient code clean code Java Concurrency Java Core

Java Microservice architecture Stream API Apache Maven Spring Security Spring Core Hibernate Query optimization Kubernetes REST API design REST API usage Spring Data Spring JPA PostgreSQL Spring Cloud Docker Spring Boot Spring Framework

relational databases PostgreSQL Flyway Jooq Git Java Spring Spring Boot GitLab CI RESTful API development Elasticsearch Jenkins Docker Kubernetes unit testing integration testing algorithmic thinking

RESTful services SOLID principles microservices architecture principles Spring Security relational databases Java 11+ Maven writing unit tests writing functional tests Git OOP principles Java DRY principles KISS principles Spring MVC Spring Boot Spring Framework

non-relational databases (MongoDB) version control system (Git) project build tools (Maven) project build tools (Gradle) relational databases (Oracle) relational databases (PostgreSQL) code quality ACID principles Spring Framework design principles Java SOLID principles KISS principles YAGNI principles DRY principles design patterns

Development process Java PostgreSQL Spring framework