DevOps Engineer – Experienced -- IMS & Voice AI Support (m/f/d)

Company Description

T‑Systems is part of the Deutsche Telekom Group, with around 30.000 employees worldwide. We create technology with purpose to generate a positive impact on society. We are looking for curious talent, eager to learn, take on challenges, and contribute ideas that transform our customers’ experience.

We trust people: we offer autonomy, continuous support, and a collaborative environment where you can grow without limits. We are one global team, guided by respect, integrity, and a passion for doing better every day.

Job Description

At the Telco Hub in Madrid, we lead the convergence of IT and Telco, building and scaling Telco as a Platform (TaaP) on our proprietary layered cloud. Our teams work in cross-country, cross-functional squads, delivering cutting-edge services to one of Europe’s most valued operators.

Our Mission

To create the best customer experience based on three core principles:

• ✅ Cloud-based – Leveraging the latest technologies for scalability and performance.
• ✅ Automated – Driving efficiency through AI, automation, and DevOps.
• ✅ Sustainable – Building a future-ready, environmentally conscious infrastructure.

Why Join Us?

• Real Innovation: Work on projects shaping the future of telecommunications.
• Professional Growth: Technical development and career opportunities in a dynamic environment.
• Global Collaboration: Agile teams distributed across multiple countries.

About the Role

The digital society wouldn’t be possible without us. Our employees provide our customers with the best network, with a reliable and secure infrastructure. The basis for tomorrow's innovations. We have the best prospects for the digital future. For you right from the start. The company Deutsche Telekom Technik GmbH is a 100 percent subsidiary of Telekom Deutschland GmbH and provides the nationwide technical infrastructure of the group. Around 19,000 employees at DT Technik plan, design, build and operate the facilities and systems of the technical infrastructure nationwide on behalf of Telekom Deutschland GmbH. The company implements network projects, operates the network technology and, if necessary, takes over the maintenance of the technical infrastructure.

The Tribe Voice & Messaging is responsible for the design, development, planning, validation and operation of all voice and messaging platforms in DT Technik's fixed and mobile network over their entire lifecycle. We provide innovative, reliable state-of-the-art services to our cellular- and landline-based customers. The scope of a current program is to bring voice & messaging applications into the cloud. We’ll change today’s model of separate fixed and mobile systems and merge them, while supporting the integration of AI into neighborinig platforms. That’s why we want you on our team.

Your Responsibilities

• You will support the project team in the integration, validation, configuration and rollout of software in a DevOps team;
• Additionally you will support the project team in the daily evaluation of security scans, open / update tickets with vendors, take part in regular security meetings with vendors;
• You will perform quality assurance testing, rollout and approval for release of software in the lab;
• You will plan and carry out validation and rollout in the live systems;
• You will assist with project-specific activities;

Tools & Technologies

• Automation & CI/CD: GitOps, CICD
• Linux
• Basic IMS knowledge

What We’re Looking For

• Experience in DevOps environments and automation.
• A proactive mindset, focused on continuous improvement and teamwork.

Qualifications

Mandatory Skills

• General knowledge of DevOps technologies and tools (e.g. Gitlab, Test Automation (min. basic knowledge)
• Experienced knowledge of Linux
• Basic IMS knowledge with relevant communication protocols (e.g. SIP and RTP) and Telecommunications Industry experience
• Willingness to learn and acquire cloud native/Kubernetes (Cloud Booster) skills if not already present
• Willingness to participate in On-Call duties outside of normal work hours, if necessary;

Nice-to-Have

• Experience with ticketing systems
• Experience in analysing and fixing security flaws as pertaining to OS would be helpful
•  ITIL knowledge / experience preferred
• Understanding German would be helpful (optional)

Additional Information

What do we offer you?

Work environment & flexibility

• International, dynamic and collaborative environment.
• T-Social: social initiatives (sports, community, health, ...).
• Hybrid work model (remote/on-site).
• Flexible working hours.

Growth & development

• Customized training: access to Coursera to learn whatever you want, whenever you want.
• Weekly language classes (English & German).
• International Mentoring Sessions & Experience Days.

Compensation & benefits

• Flexible compensation plan (health insurance, meal vouchers, childcare, transport).
• Telemedicine.
• Life and accident insurance.
• Social fund.

Wellbeing & time off

• 26+ working days of vacation per year.
• Free access to specialist services (medical, legal, wellness).
• 100% salary coverage during medical leave.

And many more advantages for being part of T-Systems!

If you are looking for a new challenge, do not hesitate to send us your CV! Please send CV in English. Join our team!

T-Systems Iberia will only process the CVs of candidates who meet the requirements specified for each offer.

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