Senior DevOps Engineer - Security

About the team

Group Network Technology (GNT) is a key part of Deutsche Telekom, where international teams shape and deliver innovative telecommunications IT and network technology solutions across Europe - from architecture and engineering to development, testing, infrastructure, and operations.

In Cloud, we build and operate Deutsche Telekom's on-prem Telco Cloud across all layers - from hardware to orchestration - based on open-source technologies. This is where modern infrastructure meets real-world impact at scale.

Our chapter-based model creates a strong home for expertise, learning, and collaboration - empowering people to grow, contribute in agile teams, and thrive in an inclusive environment while making a meaningful difference for our customers.

What you'll be doing

• Take leadership in the integration of security best practices into the entire DevOps lifecycle, ensuring robust protection of cloud-native platforms and services.
• Architect, implement, and continuously improve security services, CI/CD pipelines, and cloud infrastructure, with a focus on automation and scalability.
• Design and enforce secure configuration management, secrets handling, RBAC, and network policies across all environments.
• Mentor and coach engineers on secure coding, DevSecOps principles, and emerging security technologies.
• Stay current with the latest security threats, trends, and regulatory requirements, and drive continuous improvement in security posture.
• Participate in on-call rotation (for stand-by operations).

What we are looking for

• University degree in Computer Science, Telecommunication Engineering, Information Systems, or comparable qualification.
• Fluent in English, verbally and written.
• 5+ years of experience in cloud-native environments, with a proven track record in DevOps and platform engineering.
• Advanced knowledge of Kubernetes security, including secure application configuration, RBAC, network policies, and secrets management.
• Deep expertise in securing Linux-based environments, including advanced shell scripting and automation for security operations.
• Strong proficiency in Infrastructure as Code (IaC) security using tools like Helm, Ansible and Terraform.
• Proven experience architecting and maintaining secure CI/CD pipelines, integrating automated security testing, code analysis, and compliance checks (e.g., SAST, DAST, dependency scanning).
• Experience with monitoring tools (e.g., Prometheus, Grafana).
• Strong programming or scripting skills (e.g., Python, Go, Bash) for building security automation and custom tooling.

Nice-to-Have

• Contributions to open-source security projects or active participation in the security community.
• Familiarity with GitOps methodologies and continuous delivery tools like Argo CD.
• Kubernetes automated policy enforcement knowledge (e.g., OPA/Gatekeeper, Kyverno).
• Hands-on experience with vulnerability management, threat modeling, and remediation in cloud-native and containerized environments.
• Experience with developing APIs and Kubernetes operators.
• Familiarity with regulatory and compliance frameworks (e.g., ISO 27001, GDPR, NIS 2).
• Relevant security certifications (e.g., CKS, CISSP, OSCP, AWS Security Specialty).

Benefits and training opportunities

• Flexible working hours with partial home office options.
• Comprehensive benefits package (laptop, mobile phone, cafeteria, insurance).
• Employee discount rates on Telekom services.
• Modern, multinational working environment with amenities like a sky bar and rooftop gym.
• Access to our Employee Assistance Program.
• Comprehensive Healthcare Package.
• You will receive a minimum of 25 days of basic vacation per year (based on age).
• We offer 15 days of additional vacation if you become a father, with 100% pay.
• You'll have access to thousands of professional and skills development materials from our extensive digital training palette.
• We offer regular internal training sessions and workshops.
• You can learn English and German, even with a native speaker.
• You'll have access to Percipio and Coursera courses.

Jelentkezési határidő: 2026-08-24

Jelentkezés a Magyar Telekom karrieroldalán keresztül.