Active Directory Certificate Services Engineer

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.

• Administration and monitoring of ADCS, ADDS, Entra ID and ADFS.
• Providing 2nd line support to IAM, Identity Systems and Federation Services
• Identifying IAM risks and recommend measures to mitigate them.
• Handle all other duties as assigned by the client's Contract Manager.
• Taking part in standby duty (on-call rotation) for 24/7 support for IAM services.
• Collaborating closely with other teams in DOS Sector (infra, networks, systems etc.)
• Developing and implementing best practices for IAM services and processes.
• Creating and maintaining documentation for operational processes, procedures, and configurations.
• Supporting development teams across our growing development, UAT, and production environments in area of IAM services and processes.

Mandatory requirements 

• Degree in Computer Science or related field plus minimum 3 years of experience.
• Minimum 3 years experience in administering Active Directory Certificate Services (PKI).
• Minimum 3 years experience as a Active Directory and Entra ID Engineer.
• Expertise in administration and configuration of the following components:

1.  Active Directory Certificate Services (CA)
2. Active Directory
3. Authority Information Access (AIA)
4. CRL Distribution Point (CDP)
5.  Policy/Exit modules
6. Certificate Revocation List (CRL)
7. Entra ID

• Works unassisted and guides junior staff.
• Writes specifications, concept documents, end user and technical documentation; communicates effectively with stakeholders on technical and user requirements matters. 
• Possessing service-oriented attitude, well developed interpersonal skills, ability to work under pressure and on multiple tasks, sense of initiative and responsibility for the assigned areas of work, accuracy and attention to details.
• Good command of English, equal to B2 according to CERF.

Desirable requirements

• Bachelors in Computer Science or related field.
• At least 3 years experience in administering Microsoft Windows Server 2019/2022 in Enterprise environment.
• Experience in Certificate and Key lifecycle management.
• Solid understanding of key Identity & Access Management processes (e.g. joiners/movers/leavers, access request and approval workflows, user access recertification), concepts (e.g. RBAC, SoD) and best practices, with the ability to design and implement them.
• Strong scripting and automation skills, with proficiency in automating repetitive tasks for ADCS, ADDS and Entra ID.
• Experience in Certificate and Key lifecycle management.
• Expertise in administration and configuration of Keycloak.
• Expertise in administration and configuration of Active Directory Federation Service.
• A valid Microsoft Certified: Windows Server Hybrid Administrator Associate.