Senior Cyber Security Engineer (f/m/d) Cloud

About the Position

We are looking for a Senior Cyber Security Engineer (f/m/d) Cloud to join our team at IONOS in Berlin, Germany. As Europe's leading hosting provider, we are building next-generation infrastructure with a strong focus on digital sovereignty and security.

Responsibilities

• Drive the evolution of our Secure SDLC side-by-side with our development teams.
• Lead Threat Modeling and architecture reviews to catch risks early in the design phase.
• Design robust IAM concepts (role models, permission logic, recertification) and define clear cryptographic standards and baselines.
• Take charge of vulnerability and pentest management: scanning, CVSS scoring, prioritizing, and tracking remediations.
• Specify requirements for logging, monitoring, and error handling, and review their implementation across the board.
• Design and evaluate technical Business Continuity (BC) and disaster recovery tests.
• Automate compliance and evidence collection directly within the teams' CI/CD pipelines.

Requirements

• Well-founded, multi-year practitioner’s experience with standardized management systems and certifications, attestations in the cyber security area.
• Practical experience from two or more certified scopes according to ISO 27001, IT-Grundschutz, BSI C5.
• Multi-year experience with above standards and certifications in a technical organization.
• Proficient in leading discussions in English (CEFR C1 or higher) and completely fluent in German (C1 CEFR level is a must).

Nice to Have

• Deep conceptual knowledge of IAM (Role/Permission models, SSO, Federation, PAM, recertification logic).
• Practical experience with applied cryptography (TLS, PKI, Key Management, HSM).
• Familiarity with major frameworks (ISO/IEC 27001 Annex A, BSI IT-Grundschutz, OWASP ASVS & Top 10, CIS Benchmarks, NIST CSF).
• Experience with Policy as Code and Continuous Compliance.
• An understanding of audit logic and how to collaborate smoothly with external auditors.

We Offer

• Hybrid working model with home office option.
• Flexible working hours through trust-based working hours.
• Subsidized canteen and various free drinks at some locations.
• Modern office space with very good transport connections.
• Various employee discounts for activities and products.
• Employee events such as summer and winter parties, as well as workshops.
• Numerous training and development opportunities.
• Various health offers, such as sports and health courses.

About the Company

At IONOS, we shape the digital future for more than 6.2 million customers worldwide with our solutions. As Europe's leading hosting provider and a pioneer in independent cloud solutions, we are building next-generation infrastructure – from sovereign cloud architectures and high-performance GPU clusters to integrated AI automation tools. We work in agile teams, rely on transparent structures, and believe that excellence and innovation only emerge through true team spirit.

Ready for your next step? Become part of IONOS and grow with us.