Infrastructure 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 8 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.

• Creation of Infrastructure level Designs for the implementation/adaptation of enterprise applications/solutions and the creation of the equivalent Operation guidelines;
• Lead and/or participate in the technical negotiations and decisions about the best way to implement new solutions;
• Creation of well-detailed network flow designs and further documentation to support implementation;
• Liaise with the different specialized technical teams, in order to verify the validity of the envisaged infrastructure design;
• Perform, together with the responsible for the application/solution, the Proof of Concept and the first deployment in a non-production environment;
• Perform the administrative activities to put such designs in the Operational Production cycle (creating tickets, negotiating timelines, etc.).
• Acting in the expert role of Infrastructure Engineer, coordinate the different Operational Engineers to implement the designs created and bring them to completion.
• Responsible for coordinating the members of the Quality Assurance team to test the implemented infrastructure. 

• Minimum 3 years of Experience in creating Technical Designs (including High Level as well as detailed level), that lead to actual implementation (including processing power, network segmentation, security principle of least access, monitoring characteristics, backup and restore, etc.), also covering proven experience in presenting and defending the solution created to stakeholders of various profiles (business, technical, management)
• Minimum 5 years of experience in the installation and configuration of Server Operating Systems (MS Windows and/or Linux), including the interaction with Infrastructure at large (File shares with CIFS/SMB and NFS, secure LDAP integration, Public Key Certificates, Service accounts, API’s, etc.)
• Minimum 2 years of experience in adapting Infrastructure Designs, applying/devising Security hardening for each layer of the solution (hardware, Operating System, middleware), including leveraging well-known frameworks (e.g. CIS guidelines)
• Minimum 3 years of experience with documenting technical specifications of solutions, in terms of infrastructure design material (deployment views, server and network specifications, etc.) as well as devising and documenting operational procedures
• Minimum 3 years of experience in negotiation on a technical level with different stakeholders (e.g. ICT Security, Governance, Data Protection, ICT Operations/Solution teams, Project Management, etc.) and incorporating the results on the design deliverables
• Good knowledge in creating Technical Designs both at a High Level and a Detailed level, that lead to implementation.
• Good knowledge of implementation and configuration of Windows Server and/or Linux server operating systems (in physical or virtual format), including the interaction with Infrastructure at large (File shares with CIFS/SMB and NFS, secure LDAP integration, Public Key Certificates, Service accounts, etc.)
• Good knowledge of implementing Security hardening for Operating Systems and/or Applications and/or devices, including the usage of well-known frameworks (e.g. CIS guidelines), including the troubleshooting needed due to the consequences of hardening.

Desirable:

• 3 years of experience in implementing and also tasking and leading an ICT Operational team to perform the setup of the Designs produced, coordinating and helping the implementation of the different components/technology and troubleshooting
• 2 years of experience in calculating the Total Cost of Ownership of the designs created/proposed.
• Good knowledge in configuration of application servers to make usage of the different authentication systems, encryption in traffic, file access and database access. Ability to troubleshoot all of the mentioned components individually and as a set.