Share this Job

Cyber Security Senior Analyst (m/f/d)

Date: 31-Mar-2023

Location: München, BY, DE, 80992 Düsseldorf, NW, DE, 40474 Hamburg, HH, DE, 22297 Nürnberg, BY, DE, 90449 Teltow, BB, DE, 14513

Company: Telefonica S.A.

Contract type: full-time, unlimited
Entry: At the earliest possible date

Working anywhere.
We work where it is most productive. After a successful application process, we offer you the opportunity to work anywhere in Germany. At Telefónica, we rely on a flexible hybrid model that includes the benefits of both remote work and on-site work. You will be assigned to the nearest Telefónica location based on where you live. We will discuss further details with you during the application process.


Who we are
We are O2 Telefónica - with our mobile brands we connect millions of people and offer our customers mobile freedom in the digital world. As a leading telecommunications provider, we are playing a key role in shaping digitisation in Germany. Our approximately 7,400 employees in Germany drive the transformation forward every day - in our own company as well. Telefónica is one of the top employers in Germany and is part of the global telecommunications group Telefónica S.A. with 110,000 committed employees worldwide.  


Become part of our unique team and let's make a difference together! 


Objective of this job: As a Senior Security Analyst you will be a technical lead responsible for monitoring and investigating anomalous network activity and alerts, participating in triage/mitigation of threats, and threat hunting to develop new use cases to improve the overall Security Monitoring capability, in addition to guiding and steering MSSPs activities and their interfaces with the Cyber Defense Center team.


What to expect

  • Monitoring and investigation of Indicators of attacks from various sources (User Reported, SIEM etc.)
  • Ticket handling, responsibility for contacting both business and customers
  • Working with other internal Teams for evidence gathering and helping with Ad-hoc requests 
  • Performing advanced investigations and proposing proactive measures of protection
  • Provide guidance and direction to the MSSP Service
  • Ability to generate reports and guide analysts
  • Monitoring and analysis of alerts and anomalous network activity
  • Threat hunting in pursuit of additional use cases and leverage threat intelligence to tune tools and alerts
  • Present incident briefs and new use cases to leadership
  • Mentor Tier-1 Analysts
  • Being on call if necessary and also working on 24X7 shifts if required

What you bring

  • Bachelor’s degree in Computer Science / Information Technology or equivalent experience
  • Relevant industry-recognized security certifications from SANS, EC-Council, ISACA, etc.
  • 8+ years of experience in information security fields (e.g. security architecture, security engineering, and security operations).
  • 4+ years of experience in cyber security event analysis in large corporate environments as part of a Cyber Threat Detection or Incident Response function
  • Broad familiarity with security technologies that provide discovery, assessment, detection, analysis, and response services
  • Extensive knowledge and experience with creation of security use-cases, security alerting and supporting processes
  • Extensive background with security analysis related technologies such as SIEM, SOAR, case management, scanning tools, etc.
  • Experience dealing directly with senior stakeholders – Directors and VP level
  • Strong understanding of cybersecurity-related regulations 
  • Strong understanding of enterprise-level information systems and technology architectures, expertise in network security, cryptography, virtualization and cloud security
  • Excellent time management skills, organization skills and ability to manage multiple priorities
  • Being able to work with a diverse set of stakeholders in the organization from technical through board level 
  • Strong written and verbal communication in English and/or in Germany
  • Understanding of crisis management, business continuity and disaster recovery plans and procedures
  • Ability to review, edit, and manage business critical documentation, requiring strong written and verbal communication skills
  • Ability to understand technical topics and presenting them to management level executives
  • Strong track-record of managing performance to deliver against challenging KPIs and continuous improvement initiatives


What we offer

Modern, flexible working environment: You have the opportunity, in agreement with your manager, to work in home office or in the office, with free water, tea or coffee.

Training & Development: Everthing you need for your individual growth. With a personal development plan, learning journeys and the possibility of job rotations, you will reach your goals with us – according to our guiding principle „connect, learn and move2grow".

Financial benefits: A smartphone for business and private use, as well as the possibility to provide for partners, friends and family via a credit balance, is a given. In addition, you benefit from a variety of corporate benefits.

Health: Our "Feel Good" program keeps your body and mind in balance. Among other things, we offer fitness classes, nutritional counseling, and programs to improve workplace ergonomics and work-life balance.

Social engagement: We are also involved in social projects outside of our day-to-day work. You can support social projects through volunteering days / holidays or charity runs.


How to apply and what else you should know 

Convince us with your meaningful curriculum vitae as well as corresponding certificates. You do not need a letter of motivation with us. Please note that applications are only possible via our applicant portal and applications by e-mail cannot be considered. 

Do you have questions about our application process and are you interested in further information about the position? Please reach out to our Recruiting Team (


In case of same qualification, applicants (m/f/d) with severe disability will be preferred. All gender are equally welcome.