IT security

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Jobs in IT-Security

Digitalization is the driving force of our world. There can be no digitalization without security. We want you to be one of our security experts, we offer various career options at every level and will give you the opportunity to make a difference.

We are Security

Telekom Security is one of the largest providers of IT security solutions in the world. As market leader in Germany, Austria, and Switzerland, we pool cyber security expertise across the Deutsche Telekom Group. For example, we not only protect Deutsche Telekom's networks from cyber attacks, but also offer this protection to external customers.

Our greatest strength against cyberattacks is not technology – it's our people. From developing a security strategy and finding vulnerabilities to taking action in emergencies – our employees' knowledge and expertise is essential.

Would you like to #takepart? Join our team!  

Internship in Security

In addition to direct entry, you can also gain practical experience with us during your studies! Here you will also find interesting internships where you can take a look behind the scenes at Telekom Security.

This is how

Cybersecurity is a field for specialists in different roles who work closely together. They are well networked across departmental boundaries.


For example, with penetration tests (software) or technical tests in the laboratory (hardware) we test.

Abuse Team

Specialized experts help our customers - often even before they knew there was a problem.


With the launch of a product or service, the monitoring of the security teams is extended to it.


The Computer Emergency Response Team (CERT) tackles the complex issues that cannot be resolved immediately.

The PSA process

The Privacy and Security Assessment is mandatory. This is how we set the course for security already in the project phase.

Security Operations Center (SOC)

Keeping an eye on the situation around the clock, 365 days a year. Fast immediate measures also start there.


Ideally, the business idea is followed not only by the question of how to pay for it, but also how to keep data protected, for example.

Data privacy audits and training

We train the basic knowledge of our employees and the specialized knowledge of individuals on an annual basis.

Threat Intelligence

Knowing the details of malware is the first step in developing a defense against it.

Red Team

We hack ourselves to uncover potential vulnerabilities. Ethical hackers help us via BugBounty.

7 Current job offers in the security environment

Frankfurt am Main (+), Deutsche Telekom Security GmbH

Application & System Administrator (m/w/d) IT Operations

Frankfurt am Main (+), Deutsche Telekom Security GmbH

Application & System Administrator (m/w/d) Linux IT Operations

Frankfurt am Main (+), Deutsche Telekom Security GmbH

Junior System Engineer (m/w/d) Cyber Defense MDR

Frankfurt am Main (+), Deutsche Telekom Security GmbH

Senior System Engineer (m/w/d) Cyber Defense MDR

Frankfurt am Main (+), Deutsche Telekom Security GmbH

System Engineer (m/w/d) Cyber Defense MDR

Bonn, Deutsche Telekom Security GmbH

Business Continuity & Crisis Management Specialist (m/w/d)

Köln (+), Deutsche Telekom Security GmbH

Senior Red Team Operator (m/w/d)

Training and development opportunities at Telekom Security

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Your career is important to us

Are you curious and want the opportunity to learn new things? Do you want to know how your career will continue? If you have chosen us, we will make you fit for the challenges of tomorrow. Here you can find more information about our various development programs.

Your career contacts for cyber security

Do you have questions about the career opportunities we can offer you at Telekom Security? Would you like to know more about a specific role or team? Write to our Telekom Security recruiting experts.

Stefan Oelschlägel, Lead Recruiter

Stefan Oelschlägel


Portrait Nasim Saleh

Nasim Saleh

Lead Hiring Manager, contact for internship