Developer - Java (Intermediate) at Parvana

Job Description

Role:

• To develop functionality for a JEE (J2EE) based product.
• The back-end is a service oriented Spring based application.
• It provides a service layer for different user channels ranging from web, rich clients and batch users integrating via JMS and web services.
• The work contains a portion of support and refactoring of existing code as well as new development (extend it for new functionality) and add extra integration points.

Responsibilities:

• Supporting existing and developing new functionality and components.
• Understanding existing products and domain elements and working with business analysts to refine and implement new requirements.
• Improving the code to keep the product maintainable and adaptable to new requirements.
• Evaluating and improving application performance and high availability features.
• Creating unit and integrated system tests.
• Creating technical documentation that explains how the various components of the system work and how to use them.
• Performing root cause analysis on bugs to find and fix the cause of a problem in an integrated system.
• Building and deploying the system on an application server.
• Creating and executing functional test scenarios (dev testing).

Qualifications:

• Relevant tertiary qualification in Information Technology or Computer/Engineering Sciences.

Skills / Experience:

• A strong knowledge of Java is essential.
• 2-3 years relevant experience as an intermediary back-end developer as part of a team in a software development environment.
• Experience in scripting languages is preferred (e.g. JavaScript, Angular, Python / Jython).
• A good understanding of the SDLC process, tools and techniques specifically as applied to software development methodology.
• Experience with source control applications (preferably GIT) and UML.

Experience of the following technologies:

• JEE (J2EE) server side technologies
• Spring framework (preferable) | JPA / Hibernate
• Experience with an application server (IBM Websphere - preferable)
• Integration experience (Web / RESTful services, JMS)
• JAXB and XML Schema | Maven
• SQL and experience with a relational database (i.e. Oracle, PostgreSQL, MySQL, DB2) | SoapUI / Postman

Knowledge and experience of the following would be a plus:

• Business process/workflow layers e.g. JBPM, BPEL (Activiti)
• Rules engines (e.g. Drools)
• Design patterns (Object Oriented, SOLID, GRASP) 
• Continuous integration (i.e. Jenkins, Bamboo, Docker)