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Cyber Security Senior Expert

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Vodafone

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Location:
Türkiye , İstanbul

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Category:
IT - Administration

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Contract Type:
Not provided

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Salary:

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Job Description:

At Vodafone, we’re not just shaping the future of connectivity for our customers – we’re shaping the future for everyone who joins our team. When you work with us, you’re part of a global mission to connect people, solve complex challenges, and create a sustainable and more inclusive world. If you want to grow your career whilst finding the perfect balance between work and life, Vodafone offers the opportunities to help you belong and make a real impact.

Job Responsibility:

  • Follow technology to design and develop new security-based services taking care of cost and performance criteria
  • Search for new security equipment’s & systems for better performance of security services with new features
  • Design, setup and maintain log management, access management, database security etc. infrastructure & equipments
  • Take necessary actions to prevent possible problems in Security systems core equipment
  • Solve problems that might occur on these systems working in cooperation with vendors, outsource companies and other teams in Vodafone
  • Follow capacity of Security services equipments and take necessary actions to increase/decrease capacity when required
  • Maintain Log Management & SIEM solutions like particularly Arcsight & Splunk working in cooperation with security related teams in Vodafone
  • Plan and attend operations on the equipments for fixing issues and keeping updated with new features
  • Prepare/supports documentation of equipments and services according to company PCI-DSS, ISO 27001, ISO 27701, COBIT, KVKK, GDPR, SOX etc. policies
  • Attending internal and external audits and preparing evidence when required
  • Provide7/24, 3rd level customer needs
  • Use management tools and self-developed scripts to follow and report problems/capacity on the infrastructure develop proactive and reactive problem solution methods
  • Supporting CS Secure by Design and Cyber Defense teams for a better and more effective security process against evolving threats and requirements
  • Collaborates with 3rd party vendors for sourcing of skills required
  • Collaborates with 3rd party vendors for products and services provided, for production components as well as for pilots and prototypes
  • Watching further redundancy scenario’s in line with the effort to add value for the network
  • Prepare documentation, presentation and training about Security services to team members, other Vodafone teams, customers, partners and other 3rd parties when required

Requirements:

  • University degree (BSc./MSc.) in Engineering discipline (Electrical-Electronics, Computer Science or similar)
  • Fluent in English both written and spoken
  • At least 4 years of work and proven experience in Log Management domain tools in terms of architecture & design, integration, implementation, maintenance, troubleshooting, stakeholder management, company wide project management
  • Knowledge on Arcsight and preferably Splunk
  • Telecommunications industry experience is an advantage
  • Certification for related domains is highly preferable
  • Critical thinking with strong attention to details and follow up
  • Having low level security understanding but ability to present it in a high level
  • Strong analytical deduction
  • Being creative, problem solving and result oriented
  • Effective verbal and written communication skills and strong interpersonal skills, good in reporting
  • Demonstrated ability to work effectively with 3rd party suppliers and internal stakeholders
  • Male candidates should have completed or postponed military service

Nice to have:

  • Telecommunications industry experience is an advantage
  • Certification for related domains is highly preferable
What we offer:
  • Vflexy: Flexible Benefits Program
  • Hybrid working kit
  • Ergonomic kit allowance
  • Digital meal voucher
  • Flexible transportation allowance
  • Employee assistance hotline & counselling
  • Comprehensive and flexible private health insurance
  • Discounted price deals for wide range of products & services

Additional Information:

Job Posted:
February 21, 2026

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