Information Security Expert (f/m/d) @ A1 Competence Delivery Center

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Information Security Expert (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 in delivering 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 A1 Group and leverage synergies, CDC enables transparency of resources, key skills and knowledge expansion and personal career growth opportunities’ enhancement, paired with job stability. 

We are expanding the Security DC, part of the A1 Competence Delivery Center. Be part of this exciting journey! 

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:
The Information Security Expert ensures the secure and compliant operation of A1 Group’s hybrid environments, leading security initiatives and continuously enhancing processes and technologies to protect the organization and its customers.

Role insights:

Define and implement security policies, standards, and compliance controls; maintain documentation and drive remediation.
Ensure audit readiness and lead audit activities.
Manage security operations, including access reviews, incident response, recovery, and remediation.
Oversee security features such as endpoint protection, intrusion detection, log analysis, and patching.
Drive automation and contribute to secure architecture design with cloud providers (Microsoft, AWS, Exoscale).
Promote security best practices within teams and handle all customer security matters.
Develop and execute a continuous security improvement plan.

What Makes You Unique

Degree in Computer Science or related field.
5+ years of relevant experience.
Strong knowledge of cryptography, PKI, X.509, HSM/KMS, cybersecurity, and IT security.
Familiarity with security and compliance frameworks such as CSA, CIS, ISO, NIST, HIPAA, SOC, PCI DSS.
Experienced and certified in one or more cloud platforms.
Solid understanding of Windows, Linux, networking, and identity systems (e.g., Active Directory, ADFS, OIDC, SAML, Okta).
Ability to learn and adapt quickly to new frameworks and technologies for service automation.
Fluent English.

Nice to Have:

Industry security certifications (e.g., Azure Security, CEH, CCSP, Security+, GSEC, AWS Security).
Experience with scripting or coding (PowerShell, Bash), security technologies, and IT systems.
DevOps & Agile methodology experience, working in small teams with strong ownership.

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.

IT
Information Security Expert (f/m/d) @ A1 Competence Delivery Center

Пълен работен ден

Крайна дата: 12.12.2025.

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