Senior DevOps Engineer for SD-WAN & Network Security (m/f/d)

About Deutsche Telekom Technik GmbH

Today\’s digital society – we\’re the ones who make it happen. Our people ensure that you get the very best network. With an infrastructure that is reliable and secure. It\’s the foundation for future innovations. With us you have the best perspective for the digital future, right from the start.

About the Position

As an experienced DevOps Engineer , you will be a key individual within our team, significantly contributing to the design, optimization, and security of our modern IT infrastructure. Your primary focus will be on ensuring the smooth operation, continuous development, and enhanced security of our SD-WAN platform, utilizing state-of-the-art technologies and proven DevSecOps principles.

You will be responsible for identifying systematic errors, developing innovative solution strategies, and proactively strengthening our network security by sharing your expert knowledge within the team and actively monitoring our environments. With your deep expertise in automating CI/CD Pipelines , Containerization (Docker, Kubernetes) , and applying Infrastructure as Code (Terraform, Ansible) , you will ensure our platform is robust, scalable, and secure at all times.

You will collaborate closely with internal development and operations teams, as well as external partners, to implement new features, optimize network performance, and effectively address future security challenges. Your strong problem‑solving skills and willingness to participate in on‑call duties make you a valuable addition to our team.

Must‑Have Skills

• Profound knowledge and practical experience with CI/CD pipelines (e.g., Jenkins, GitLab CI)
• Expertise in containerization technologies (Docker, Kubernetes)
• Hands‑on experience with Infrastructure as Code (IaC) tools (e.g., Terraform, Ansible)
• Experience with major Cloud Platforms (Azure, AWS, GCP)
• Proficiency in scripting languages (e.g., Python, Bash, Groovy)
• Knowledge of Monitoring & Logging systems (e.g., Prometheus, Grafana, ELK Stack)
• Experience with Agile Methodologies (Scrum, Kanban)
• Understanding and application of DevSecOps principles
• Strong automation skills
• Excellent problem‑solving capabilities

Nice‑to‑Have Skills

• Specific experience with network security concepts like Zero Trust Architecture, SASE, or ZTNA
• Hands‑on experience with security products from relevant vendors (e.g., Cisco, Palo Alto Networks, Fortinet)
• Relevant industry certifications (e.g., CCNA Security, CCNP Security)
• Knowledge of IT processes, business analysis, or quality assurance

What We Offer

• Flexible Work Models: Freedom to shape your work‑life through flexible working hours, hybrid work models, and remote work options.
• Individual Development: Extensive training and career opportunities, access to innovative technologies, and internal training programs.
• Attractive Compensation Package: A competitive salary along with additional benefits such as company pension scheme and employee discounts.
• Health and Well‑being: Health promotion programs and a focus on a balanced work‑life balance.
• Modern Work Environment: A dynamic and collegial team, modernly equipped workplaces, and an open corporate culture.
• Team Spirit & Collaboration: An open and appreciative corporate culture where teamwork is highly valued.

Do you think this job is made just for you? Then use the chance to apply online now! In case of equal qualification, disabled candidates will be considered preferentially. We look forward to getting in contact with you!

This position is also available on a part‑time basis.

Your contact: Petra Hofmann ( )

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