• Containerization:
  Docker
• Orchestration:
  Kubernetes, AWS EKS
• CI/CD Tools:
  Jenkins, Bamboo
• VCS Hosting:
  Bitbucket, GitHub, Gitlab

AWS (S3, EC2, RDS, Cognito, CloudWatch, SQS, ELB, MSK)

• API Communication:
  REST, SOAP, WebSocket, GraphQL.
• Messaging:
  Kafka, RabbitMQ, Cassandra, AWS SQS
• Service's Tools:
  HttpClient, RestTemplate, WebClient, FeignClient

• Spring Cloud LoadBalancer
• Ribbon
• Orchestration tools
• Messaging tools

• ELK
• Grafana
• Prometheus
• Spring Boot Actuator

• Identity Providers:
  Keycloak, AWS Cognito
• Standarts:
  OAuth 2.0, JWT, SAML, OpenID Connect

• ORM and Mapping:
  Hibernate, Spring Data JPA, MyBatis, jOOQ
• Migration:
  Flayway, Liquibase
• SQL DBs:
  MySQL, PostgreSQL
• NoSQL DBs:
  MongoDB, Cassandra
• In memory DBs:
  Redis, Hazelcast, Memcache

• Web Frameworks:
  Spring (Boot, MVC, Data, Security, AOP, Restful, WebFlux, Cloud Netflix)
• Documentation:
  Swagger, Spring Rest Docs
• Build Tools:
  Maven, Gradle
• Java Versions:
  8, 11, 17
• Patterns:
  GoF, Microservices, AntiPatterns
• Web Technologies:
  JSP, JSTL, Servlets
• Paradigms and Methodologies:
  OOP, SOLID, TDD, DDD, BDD, KISS, DRY, YAGNI

• Frameworks:
  Junit 3-5, Mockito, AssertJ, WireMock, PowerMock, WebTestClient
• Load & Stress Testing:
  JMeter, Gatling
• Static Analyses:
  PMD, Checkstyle, SonarQube
• Code Coverage:
  JaCoCo, Intellij Idea Tools

JS, JQuery, HTML, CSS

• For Emails:
  SendGrid
• For SMS & Push:
  Twilio

• Atlassian Tools:
  Jira, Confluence, Trello, Service Desk
• Agile:
  Scrum, Kanban, Scrumban, XP
• Project Types:
  Outsource, Outstaff, Startup
• Diagram Tools:
  Draw.io, PlantUml, LucidChart, Visio, AI tools