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.

What Makes You Unique:

• Basic understanding of Windows Server and client operating systems.
• Knowledge of networking fundamentals (DNS, TCP/IP, ports).
• Initial experience or strong interest in Active Directory or identity systems
• Basic PowerShell scripting skills.
• Willingness to learn PKI (certificates, ADCS) and authentication protocols (Kerberos, LDAP, SAML, OAuth).
• Ability to work in structured environments (processes, ticketing, documentation).
• Good English communication skills.

Nice to Have:

• Experience with Microsoft Entra ID or hybrid identity environments.
• Familiarity with monitoring tools such as SCOM or Splunk.
• Basic security awareness, including Tiering models and privileged access concepts.

Our gratitude for the job done will be eternal, but we’ll also offer you:

•  Valuable experience in one of the fastest-growing and most innovative industries.
•  Challenging assignments with strong opportunities for personal and professional growth in a multinational environment.
•  Hybrid working model supporting a healthy work-life balance.
•  Thousands of online and in-person Learning opportunities for you to grow.
•  Modern, open, and friendly work environment that fosters continuous learning and the development of both technical and soft skills.
•  Special employee tariffs and a wide range of attractive employee benefits

If you have any questions,  please do not hesitate to contact Mariya Ivanova