operational services GmbH & Co. KG | Germany | 38xxx Wolfsburg | Permanent position | Full time / Home office | Published since: 03.09.2025 on stepstone.de
Senior Penetration Tester IT-Security (m/w/d)
operational services (OS) is one of the leading ICT service providers in the German market and is regarded as a backbone of the digitization of the middle class. It is the leading agile unit of the Telekom Group in order to continuously accelerate the digital transformation in the German middle class. With over 1,000 highly qualified employees, it develops and operates state-of-the-art information systems, manages private & public cloud platforms, secures long-term 24/7 system support and the availability of critical operating processes. STELLENKENNZIFFER: 992025054MHO JOBV1_EN
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Your tasks • Your profile • What we offer
operational services (OS) is one of the leading ICT service providers in the German market and is regarded as a backbone of the digitization of the middle class. It is the leading agile unit of the Telekom Group in order to continuously accelerate the digital transformation in the German middle class. With over 1,000 highly qualified employees, it develops and operates state-of-the-art information systems, manages private & public cloud platforms, secures long-term 24/7 system support and the availability of critical operating processes. STELLENKENNZIFFER: 992025054MHO
Conduct and conduct of penetration tests Analysis and evaluation of vulnerabilities and development of attack scenarios Advising customers to develop and implement defense strategies Creation of comprehensive and meaningful reports Development of safety concepts and guidelines Sovereign Presentation of Concepts, Solutions and Results Technical and organisational management of project teams Coaching and further development of Junior Penetration Testers Participation in the acquisition and supply development Further education and continuous expansion of our own expertise in cybersecurity
Master or Diploma with adequate professional experience or comparable knowledge and skills At least seven years of professional experience in IT security, including several years of penetration testing or similar activities Knowledge of IT infrastructures, networks, web and application security Experience with tools and methods for vulnerability analysis and penetration testing (e.g. Burp Suite, Metasploit, Nmap, etc.) Extensive knowledge of attack techniques and defense measures in the cybersecurity environment Embossed analytical skills and a structured working method Certifications such as OSCP, OSEP or comparable Great personal interest in IT security and independent development of new knowledge Very high flexibility, durability and readiness Very good knowledge of German and English in word and writing
Germany-wide mobile work Attractive salary package with participation 37 hours/week with working time accounts Employer-funded training and certification Another plus is our bicycle leasing, 30 days holiday, subsidised Germany ticket, employee-funded retirement provision, asset-effective services, group accident insurance for work and leisure as well as employee conditions for many products from the Deutsche Telekom Group. JOBV1_EN
Company location
Location
![]() | operational services GmbH & Co. KG | |
Wolfsburg | ||
Germany |
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