DevOps Engineer 5G Combo Core

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.
✅ Sustainable – Building a future-ready, environmentally conscious infrastructure.
We are looking for top engineering talent eager to grow technically and professionally in an innovative, dynamic, and collaborative environment. If you are passionate about shaping the future of telecommunications, this is your place!

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.

Job Description

• Analyze customer and business requirements and translate them into suitable solution and system designs and into clear technical requirement descriptions for the implementation teams

• 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.

Tools and Platforms

4G ePC  5G NSA  5G SA  Linux  GitLab  Kubernetes based cloud   ELK-Stack  Jira

Qualifications

Mandatory skills:

• In-depth understanding of mobile core network components, including their functions, procedures and processes, interfaces, and protocols in 4G enhanced packet core (4G ePC), 5G non-standalone core (5G NSA), and 5G standalone core (5G SA) networks and their interconnection with customer networks.

• Several years of experience in integrating mobile services and CNF applications (ideally Mavenir products) into cloud-native environments.• Several years of experience in designing cloud-native network functions and the ability to explain the diverse technical requirements to colleagues, suppliers and customers

• Good knowledge of the structure and design of microservice architectures, REST APIs and modern security protocols for cloud-based applications and databases

• Deep end-to-end understanding of the functionality and protocols of heterogeneous IPv4/IPv6 networks• Furthermore, expert knowledge in the interconnection of different mobile and customer networks at user and control plane level is particularly important

• Experience in classic and agile project management• Ability to work very independently as well as in teams

Considerations

Optional participation in on-call duty and call-in procedures (approximately 5-7 weeks per person per year).

Additional Information

What do we offer you?

• International, positive, dynamic and motivated work environment.
• Hybrid work model (teleworking/on-site).
• Flexible schedule.
• Continuous training: Preparation for certifications, access to Coursera, weekly English and German classes...
• Flexible compensation plan: health insurance, meal vouchers, childcare, transport assistance...
• Life and accident insurance.
• More than 26 working days of vacation per year.
• Social fund.
• Free service for specialists (doctors, physiotherapists, nutritionists, psychologists, lawyers...)
• 100% of salary in case of sick leave.

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

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

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

About the Company

At T-Systems, you will find groundbreaking projects that contribute to social and ecological well-being. We want to welcome new talents like you, who bring fresh ideas, different points of view, who accept challenges and continuous learning, to grow and impact society… All this, in a fun way!

It doesn't matter when or where you work. It's about doing work that matters to move society forward. For this reason, we will do everything possible to ensure that you have every opportunity to develop by offering you a support network, excellent technology, a new work environment and the freedom to work independently. We support you to constantly grow both personally and professionally, so that you can leave a notable mark on society.

T-Systems is a team of around 28,000 people employed around the world, making us one of the world's leading providers of integrated end-to-end solutions. We develop hybrid cloud and artificial intelligence solutions and drive the digital transformation of companies, industry, the public sector and, ultimately, society as a whole.