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.

• Operate and maintain client's Puppet Enterprise infrastructure
• Ensure compliance of the servers with the agreed policy (fix unresponsive nodes, no-op nodes, etc.)
• Support colleagues and other teams with the adoption of Puppet Enterprise for their activities
• Upgrade the software to the most recent version, to avoid being more than one version behind the market (e.g. to avoid security and error-prone upgrades, etc.)
• Contribute to the refactoring/improvements of the Puppet Enterprise infrastructure
• Improve agent upgrades in-manifest/remove task dependency
• Improve the security posture of Puppet Enterprise installation on our infrastructure.
   

Mandatory:

• Bachelor's degree and 10 years of experience
• Working knowledge of English B2 or higher
• More than 9 years of experience in ICT (e.g. as developer, system administrator, software engineer, infrastructure engineer, DevOps engineer, etc.)
• At least 3 years of experience working in an international/multi-cultural environment
• At least 3 years of experience with IT operations and Linux/Unix Administration, preferably Red Hat 8+
• At least 5 years of experience in Puppet based configuration management design/architecture, development/configuration and deployment/administration, preferably on Red Hat 8+
• Participation in a minimum of 3 projects involving Puppet Enterprise based solutions on Linux/Unix (or equivalent experience – large projects)
• Participation in a minimum of 2 projects involving server automation (deployment) and standardization through scripting (e.g. Powershell, Python, Bash, etc.)
• A minimum of 3 years of experience working with an Agile methodology, preferably SCRUM.
• Excellent knowledge of Puppet Enterprise based configuration management design/architecture, development/configuration and deployment/administration
• Excellent knowledge of DevOps principles and best practices (continuous delivery, continuous integration, continuous deployment, use of automation to improve efficiency, feedback loops, fail fast, etc.)
• Puppet Enterprise Certification

Desirable:

Certification: RHCSA/RHCE