Senior Network Security Engineer

Košice, Slovakia (Slovak Republic)

Deutsche Telekom IT Solutions Slovakia

Deutsche Telekom IT Solutions Slovakia sa stáva synonymom progressu a kvalitatívneho apelu na všetky riešenia, ktoré robia vaše životy kvalitnejšími a efektívnejšími.

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Company Description

Our brand Deutsche Telekom IT Solutions Slovakia entered the life of Košice region in 2006 under the name of T-Systems Slovakia and ever since has been inextricably linked with the region when became one of the founding members of Košice IT Valley. We have managed to grow from scratch to the second largest employer in the eastern part of the country with more than 3900 employees. Our goal is to proactively find new ways to improve and continuously transform into the type of company providing innovative information and communication technology services.

Job Description

As a Network and Security Engineer focusing on DataCenter network and web application firewall, you play a crucial role in our team, responsible for developing, implementing, and operating our network and security infrastructure. In this role, you will work closely with various teams to secure and optimize our DataCenter environments.


  • Planning, implementation, and operation of the network infrastructure in the DataCenter, including physical and virtual network components.
  • Configuration, management, and maintenance of web application firewalls (WAF) to protect web applications against security threats.
  • Conducting regular security reviews and audits to ensure compliance with security policies.
  • Identification, analysis, and mitigation of network and security issues.
  • Development and implementation of security measures and protocols for network management.
  • Collaborating with the operations team to integrate network and security solutions.
  • Using tools like MS Visio, Jira, Confluence, and DrawIO for documentation and project management.
  • Conducting release tests in the lab environment to verify network and security configurations before deployment in production systems.
  • Documenting proven procedures and instructions for the operations team to ensure efficient and error-free implementation of network security solutions.
  • Practical experience with web application firewalls and a deep understanding of network security principles, especially with Imperva WAF technology.



  • have a completed degree in Computer Science, Engineering, or a comparable qualification,
  • have solid experience in network and security engineering, preferably in DataCenter environments,
  • have hands-on experience with web application firewalls and a deep understanding of network security principles, especially with Imperva WAF technology,
  • are experienced in working with MS Visio, Jira, Confluence, and DrawIO,
  • have strong analytical skills and the ability to effectively solve complex problems,
  • are a team player with strong communication skills and a high degree of self-organization.

Additional Information


We believe in balance between work and personal life. An attractive and extensive work-life balance portfolio guarantees lasting motivation for employees and thus a better quality of life, promotes physical and mental well-being and contributes to a positive work environment. All this with the aim of providing more freedom in reconciling work, career growth, private life and individual lifestyle. Therefore we offer to our employees over 25 different benefits to improve their personal and professional life in these areas:

  • Financial benefits
  • Benefits with focus on learning and development
  • Benefits with focus on health and sport
  • Benefits with focus on family and work – life balance
  • Other benefits

For more information about our benefits click to Benefits


Final salary is negotiable.

We are offering base salary depending on seniority level and previous experience of candidate. In addition to base salary we provide variable part and other financial benefits. Base salary will not be lower than 1850 € /brutto.

Additional information

* Please be informed that our remote working possibility is only available within Slovakia due to European taxation regulation.

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Tags: Audits Compliance Computer Science Confluence Firewalls Jira Network security

Perks/benefits: Career development Health care Startup environment

Region: Europe
Country: Slovakia

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