IT-Security Engineer (m/f/d)

Shape the future of mobility with us:
Do you approach technical security measures with passion and view challenges as opportunities? With your expertise in SIEM, IDS/IPS, and penetration testing, do you want to independently protect our IT infrastructure and enhance security awareness within our company? If you are looking to actively shape digital security with us, you have come to the right place.

We are the market leader for digital ticketing solutions in public transportation in Germany and part of Siemens Mobility. With over 130 brilliant minds, we develop smart solutions that simplify ticket purchasing – for passengers and transport operators alike. Our goal: sustainable, connected mobility that makes private cars obsolete

Your responsibilities::
• Being responsible for the technical implementation of necessary security measures and security controls to protect the IT infrastructure from cyber attacks and unauthorized access (e.g. ISO27001)
• Being responsible for the introduction, further development, management and supporting of security solutions, such as intrusion detection systems (IDS) and security information and event management (SIEM)
• Identifying and assessing potential security risks and vulnerabilities and proactively developing and pursue measureing to mitigate them or minimize their impact
• Carrying out penetration tests independently to determine the strengths and weaknesses of our security architecture
• In the event of security incidents, supporting the necessary steps and being available to rectify the vulnerabilities
• Working closely with our IT teams to develop innovative IT security concepts and implement them together with the IT teams
• Acting as a multiplier for IT security and strengthen security awareness throughout the company
• Ensuring proper documentation in the context of IT information security
• Very good German and English skills

Your qualifications::
• Sucessfully gained a degree in computer science, information security or a comparable qualification
• 3+ years of experience in IT security and therefore experienced with cyber security tools such as SIEM, IDS/IPS, antivirus software
• Knowledge of network security, encryption, authentication and access control
• Having (basic) knowledge of scripting languages such as PowerShell, Bash, Python
• Certifications such as CISSP, CEH or similar are an advantage
• Having an understanding of concepts of cloud technologies such as Infrastructure as a Service (SaaS) and Platform as a Service (PaaS), Continuous Integration / Continuous Deployment (CI/CD)
• Collaborating with other teams and having the ability to effectively communicate security needs and risks
• Experienced in the implementation and operation of SIEM, VA scanners, IDS/IPS, firewalls, antivirus, network monitoring and endpoint security solutions
• Gained experience in implementing security concepts in the Kubernetes environment
• Very good German skills and good English skills

What do we offer?:
• Flexible working
• Mobile work
• Family-friendly structures
• Choose your device: Mac, Windows oder Linux
• A meaningful job
• Working with agile methods & modern tech & toolstack 
• Internal & external training, as well as German and English courses
• Onboarding with mentors & comprehensive training plan
• Discounted public transport ticket
• 30 days of vacation
• 1 additional vacation day & option for a sabbatical after 5 years
• Employer’s contribution to company pension scheme (bAV)
• Health and prevention services
• Bikeleasing
• All offices in top locations

Do you want to join us?:
Do you want to be part of a dedicated team that collectively shapes the innovative transformation of mobility, thereby promoting the use of public transportation? Then you're in the right place with us.

Please submit your resume, including your availability and salary expectations, via the application form by June 4, 2026. As we emphasize your practical experience, a cover letter is optional. For certain positions, we also welcome work samples.

Diversity makes us strong! We encourage applications from people of all origins, identities, life situations, and with or without disabilities. What matters to us is what you bring to the table – not where you come from.

You can find more information about data protection here.