Java Developer

Arηs is a fully independent group of companies specialized in managing complex IT projects and systems for large organisations, focusing on state-of-the-art software development, business intelligence and infrastructure services.

We are composed of 13 entities across 6 countries that are unified by the Arηs Group, with more than 1750 consultants.

This corporate structure enables us to respond quickly to market changes and customer requests, and to communicate and make decisions without layers of bureaucracy.

Our success can be attributed to the synergy among our nine complementary entities, combined with our methodologies, which are based on the Rational Unified Process (RUP) and the Scrum agile software development framework.

Established in 2016, the Greek entity Arηs Developments Hellas aims to extend Arηs Group activities dedicated to the European market providing high-quality services in Software Development, covering the entire application development lifecycle: starting with user requirements, business process redesign and specifications, to continue with development, testing and application maintenance.

• Contribute to the improvement of the development and build process
• Design and develop production grade, enterprise level systems that make extensive use of messaging and microservices.
• Participate in the Java implementation of applications and micro-services involving integration with search engines, being able to write backend code in a reliable, fast, scalable, and secure way, satisfying requirements and service level agreements.
• Write OAUTH authentication mechanisms. Implement validation mechanisms as unit and integration tests.
• Assist with deployment and configuration of the system. Setup CI/CD pipelines. Familiarity with Kubernetes/Docker is assumed.
• Follow Scrum procedures and disciplines. Estimate the work to be done upon request.
• Write technical documentation. Account for secure coding practices, as well as logging and auditing features.
• Work with Git following pull request procedure.
•  Write clean, secure and high-quality code.

• Bachelor plus 10 years of relevant experience.
• Working knowledge of English B2 or higher Common European Framework of Reference for Languages (self-assessment).
• Good knowledge of  application development environments like Eclipse or Intellij, Maven, Git.
• Good knowledge of the design and development of components like REST APIs, integrations, micro-services).
• Proficiency in using REST based frameworks like Spring MVC as well accessories tools like Postman.
• Building SOAP web servers and clients in the Java/Spring context.
• Good knowledge of relational databases Microsoft SQL server.
• Ability to use Spring Data and Hibernate.
• Good knowledge of Agile software development methodologies, Scrum,  Kanban.
• Good knowledge and proven professional experience of OOP paradigms and SOLID principles using Java 11 (or higher) and experience with most common Java frameworks, Spring, SpringBoot.
• Good knowledge of container technology ,Docker or Kubernetes.
• Good knowledge of messaging systems like  ActiveMQ and RabbitMQ.
• Good Knowledge of CD/CI systems TFS/Azure DevOps and Jenkins.
• Good knowledge and proven professional experience with at least one of the JavaScript front-end frameworks, Vue.js/  jQuery/ Angular2/ REACT.
• Good knowledge in Enterprise Integration methodologies and patterns.
• Proficiency in modelling an EIP system using classical EIP patterns and diagrams.

Desirable:

• Good knowledge of no-sql and graph databases and ElasticSearch.
• Capable to be part of an Agile Team implementing Scrum (team worker, easy going, good communication capabilities)  and knowledge of software development methodologies  (e.g. AGILE).
• Ability to participate in multi-lingual meetings, ease of communication.
• Capability of integration in an international/multi-cultural environment.
• Ability to cope with fast changing technologies used in application developments.