4G/5G Core Network DB Operator (m/f/d)

About the Position

4G/5G Core Network DB Operator (m/f/d)

At T-Systems, part of the Deutsche Telekom Group, we are pioneers in merging IT and Telco, building and scaling Telco as a Platform (TaaP) on our proprietary layered cloud. Located at the Telco Hub in Madrid, we are looking for a Solution Designer to join our SDM Lifecycle Squad. This role involves the planning and operation of central network databases (CNTDB) for all access networks (mobile, fixed-line, M2M), as well as HLR/HSS throughout their entire lifecycle, along with 5GC-relevant systems such as UDM & AUSF.

Responsibilities

• End-to-end operation of the frontend systems in the 5G Core domain (UDM, AMF, SMF, NRF) as well as the 4G Core (HSS and DRA) in a cloud environment
• Monitoring of frontend systems in the 5G/4G Core domain with Kibana and Grafana
• Incident resolution and support for problem management
• Checking the cloud cluster status using kubectl and k9s
• Adjusting configurations using GitOps, including change management
• Protocol-level tracing using NetScout and Wireshark

Requirements

Must-have requirements:

• In-depth knowledge and experience in the area of 5G Core (UDM, AMF, SMF, NRF)
• Confident use of tools such as kubectl, k9s, Kibana, Grafana, GitOps, NetScout, and Wireshark
• Experience in YAML and JSON is an advantage
• Basic willingness to take on on-call duty after thorough training

Nice-to-have requirements:

• Basic knowledge of 4G Core (HSS, DRA)

We Offer

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, Spanish & 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 of being part of T-Systems!

About the Company

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.

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.