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Test Automation Engineer - AI Calling at T-Systems | Madrid

On-site Full-time

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Experience Level

Mid to Senior

Qualifications

Required Skills:Proven experience with cloud-native technologies and container orchestration. Strong expertise in Containers and Kubernetes management. Hands-on knowledge of IMS architectures and call flows (CSCFs, AS, MRF). Experience in designing and maintaining CI/CD pipelines (e.g., GitLab CI). Proficient in Python and Bash scripting. Strong analytical skills for troubleshooting and root cause analysis. Experience with real-time systems and performance optimization in telecommunications. Familiarity with testing and validation frameworks for cloud-native applications. Tools & Platforms:SIP and Media debugging tools (Wireshark, sngrep). Kubernetes management tools (kubectl, Helm). CI/CD platforms (GitLab CI, Artifactory). Infrastructure as Code tools.

About the job

Join the innovative team at the Telco Hub in Madrid, where we are at the forefront of integrating IT and telecommunications, developing and expanding Telco as a Platform (TaaP) on our proprietary layered cloud infrastructure. Our cross-functional teams deliver state-of-the-art services for some of Europe’s leading operators.
Our commitment is to enhance customer experiences through three pivotal principles:
Cloud-based – Utilizing cutting-edge technologies for optimal scalability and performance.
Automated – Enhancing efficiency via AI, automation, and DevOps methodologies.
Sustainable – Fostering environmentally-friendly, future-ready infrastructure.
We seek exceptional engineering talent who are eager to evolve both technically and professionally in a vibrant and collaborative setting. If you are driven by a passion for redefining the future of telecommunications, this is the opportunity for you!

The Voice & Messaging (T-VM) unit within Deutsche Telekom Technik GmbH oversees all voice and messaging platforms across Deutsche Telekom Technik’s fixed and mobile networks throughout their lifecycle. The platforms managed by T-VM are integral to Telekom Deutschland's core business, focusing on stability, quality, innovation, and efficiency. The ACS Squad (Announcement-, Control & Support Systems) is tasked with the complete lifecycle management of critical IMS components within DT Technik.

Role Responsibilities:

• Management of IMS-MRF (Media Resource Function) deployed on Kubernetes.
• Oversight of OneiDNS, a cloud-native DNS service for all IMS nodes in fixed and mobile networks, also deployed on Kubernetes.
• Administration of VoIP Support Systems within the IMS fixed network provisioning chain, utilizing a VMware-based application landscape.
• Operate as part of a DevOps team, taking full ownership of design, engineering, deployment, and operations.
• Tackle the upcoming challenge of developing a new AI Calling framework on DT Technik’s CaaS Kubernetes platform, facilitating real-time speech processing and translation within IMS call flows.
We invite a motivated and technically adept individual to join our team and contribute to this transformative journey.

About T-Systems International GmbH

At T-Systems, we are dedicated to pioneering projects that positively impact society and the environment. We welcome new talents who bring fresh perspectives and embrace challenges, fostering continuous learning and growth in a fun atmosphere. Our focus is on meaningful work that contributes to societal advancement. We are committed to providing a supportive network, advanced technology, a modern work environment, and the autonomy to work independently. We encourage personal and professional growth to leave a lasting impact on society. T-Systems encompasses a diverse team of around 28,000 individuals worldwide, positioning us as a leading provider of integrated end-to-end solutions. We specialize in hybrid cloud and artificial intelligence solutions, driving digital transformation.

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