Must have:
• Java
• JPA (e.g.: Hibernate, Eclipselink, Toplink)
• JAX-WS (SOAP)
• JAX-RS (REST)
• JUnit
• Maven

Preference given to candidates with
• Java EE 6
• Spring 4.x
• EJB 3
• JMS queues and topics
• JBoss, Websphere or Glassfish experience
• Oracle Java certified

General skills requirements:
• Knowledge of the SOLID principles (Clean code)
• OO concepts
• TDD
• BDD
• Testing methodologies (Smoke / Pen / Integration)
• Software design patterns
• Good problem solving skills
• Agile (Scrum & Kanban)
• Atlassian tools : Confluence / JIRA / Bamboo
• GIT
• Continuous integration
• Data structures and algorithms