Junior Identity & Directory Engineer (f/m/d) @ A1 Competence Delivery Center

Strength. Care. Growth

A1 Competence Delivery Center is a vital component of A1’s telecommunications business. Acting as an expertise hub, CDC is dedicated to delivering a full range of high-quality IT, network, financial and other services to support A1’s operations across all OpCos, independent of location.

Using the power of being OneGroup and leveraging synergies, CDC enables transparency of resources, key skills and knowledge expansion and personal career growth opportunities’ enhancement, paired with job stability.

You will know we are the right place for you, if you are driven by:

• Opportunities to learn and build your career.
• Meaningful work in a stable and fast-paced company.
• Diversity of people, projects, and platforms.
• A supportive, fun, and inspiring place to work.

Role Overview:

We are looking for a motivated Junior Engineer to support our Identity & Directory Services team. The role covers Microsoft Active Directory (ADDS), ADCS, ADFS, Tier 0 infrastructure, and Microsoft Entra ID.

This is not a pure application role – the position includes infrastructure understanding from operating systems up to identity services.

Role Insights:

• Support daily operations of Active Directory Domain Services (ADDS), Active Directory Certificate Services (ADCS), Active Directory Federation Services (ADFS), and Microsoft Entra ID (hybrid identity).
• Assist in monitoring, troubleshooting, and incident handling.
• Participate in patching and maintenance activities, including Tier 0 systems.
• Support identity-related changes and service requests.
• Work with security concepts such as privileged access, authentication, and certificates.
• Collaborate with infrastructure and cloud teams across the organization.
• Participate in on-call duty rotation after onboarding.