Company Description 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. At the Telco Hub in Madrid, we are pioneers in merging IT and Telco, building and scaling Telco as a Platform (TaaP) on our proprietary layered cloud.

Our teams operate in cross-country and cross-functional squads, delivering cutting-edge services to Europe's most valued Operator. Our mission is to create the best customer experience based on three core principles: Cloud-based– Harnessing the latest technologies for scalability and performance. Automated– Driving efficiency through AI, automation, and DevOps.

The Data

Tribe (T-DAT) within the Services & Platforms (T-SP) division bears holistic responsibility for all data services in the fixed and mobile networks throughout their entire lifecycle.

The Packet Core

Supersquad/Enterprise Core Squad is responsible for our business customer services in our mobile core networks. In this position, you will analyze new customer and business requirements, design suitable solutions, and initiate all necessary developments and adaptations in our state‑of‑the‑art cloud‑native 4G and 5G core networks. Engineering and designing cloud‑native network functions.

Improve implementations to optimize customer experience, reliability and efficiency. Design and development of automation solutions for the provisioning and operation of services.



Design and create high availability solutions and disaster recovery plans to ensure service stability and rapid recovery.

Provide support for complex projects across development, quality assurance, and project planning, as well as assist with the implementation of new mobile core software releases. Collaborate closely with involved implementation teams to streamline processes, enhance software and system performance and apply innovative technologies and concepts. In-depth understanding of mobile core network applications, including their functions, procedures, interfaces and protocols in 4G enhanced packet core (4G ePC), 5G non‑standalone core (5G NSA) and 5G standalone core (5G SA).

Several years of professional experience in a telecommunications company, specifically in the operation of telecommunications services (incident, problem, and change management).

Experience in operating of containerized network functions (CNF, ideally Mavenir products) in cloud‑native environments. Hands‑on experience in administering Linux machines. Hands‑on experience in tracing and protocol analysis in microservice architectures. Ability to work both very independently and in international, cross‑cultural teams.

Experience in classic and agile project management.

Linux

Admin (Ubuntu, RedHat) ~ GitLab (CI/CD pipelines) ~ Ansible ~ Kubernetes based cloud ~ ELK‑Stack ~ Python ~ Jira T‑Social: social initiatives (sports, community, health, ...). Hybrid work model (remote/on‑site). Adaptable working hours.

Customized training: access to Coursera to learn whatever you want, whenever you want. Weekly language classes (English, Spanish & German). Flexible compensation plan (health insurance, meal vouchers, childcare, transport). Social fund. Free access to specialist services (medical, legal, wellness). ~

📌 DevOps Engineer for Enterprise Core Services (m/f/d) (Madrid)
🏢 T-Systems Iberia
📍 Madrid