Application Engineer/Administrator

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.

Are you an experienced Application Engineer?

Do you enjoy working with cutting-edge tech stack?

We would like to meet you!

We are currently looking for Application Engineer to join our growing team in one of the biggest European organizations in law enforcement.

Your tasks:

• Application installation, configuration and administration in production and non-production environments;
• Application monitoring, performance tuning and continuous improvement of the efficiency and quality of service;
• Performing applications support and maintenance activities such as incident, change, release and problem resolution;
• Writing and validating application procedures manuals, including troubleshooting guides, backup and restore plans;
• Automate administrative procedures for recurring system administration activities and provide installation and technical support documentation where required; 
• Contributing to the structuring, maintenance and development of the technical knowledgebase supporting the ICT Operations activities;
• Reporting on application availability, performance, capacity and overall usage where required.

Who are you:

Mandatory:

• Bachelor’s degree plus a minimum of 9 years of experience working as an IT professional in mid/large IT infrastructure environments, including deployment, support, and maintenance of applications.
• Working knowledge of English (level B2 or higher)
• More than 6 years working as an IT professional in mid/large IT infrastructure environments, including deployment, support and maintenance of applications.
• A minimum of 5 years of experience with administration and support of recent operating system versions of Microsoft Windows Servers and/or Red-Hat Linux on enterprise environments.
• A minimum of 5 years of experience working as an IT professional in the area of application administration, support and configuration.
• A minimum of 4 years of experience with DevOps and automated deployment and configuration scripting (e.g., git, Azure DevOps, Python);
• A minimum of 2 years of experience with configuration management tools for applications (e.g., Puppet)
• A minimum of 4 years of experience in Kubernetes cluster management and migration
• Excellent knowledge of Linux and Windows server-side operating system support and maintenance (RHEL *+, Windows 2019+).
• Excellent knowledge of Linux and Windows server-side application administration and troubleshooting.
• Excellent knowledge of application containerization, packaging and deployment on Kubernetes clusters (helm charts, operators, pipelines).
• Good Knowledge of configuration management concepts and technologies (e.g. Puppet)
• Good knowledge of DevOps principles and best practices (version control, automation, pipelines, improve efficiency, feedback loops, fail fast, etc.)
• Knowledge of ITIL, including the incident, change and release management processes
• Certification: Certified Kubernetes Administrator (CKA)

Desirable:

• Certification: Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE)