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

T-Mobile US Inc.; Madrid; Hybrid; EUR 55,000 - 75,000; Full time

Benefits offered by this job

Hybrid work model (remote/on-site)

Flexible working hours

Wellbeing & time off

Health insurance

Professional development

Job summary

T-Systems Iberia in Madrid is seeking a 4G/5G Core Network DB Operator to manage end-to-end 5G and 4G core frontend systems in a cloud environment. You will monitor with Kibana/Grafana, resolve incidents, and handle cluster status using kubectl/k9s, while applying GitOps and performing protocol tracing with NetScout and Wireshark.

The role emphasizes on-call readiness after thorough training, with a hybrid work model and international, collaborative exposure within a cross-country team.

Qualifications

• In-depth knowledge and experience in 5G Core (UDM, AMF, SMF, NRF).
• Confident use of kubectl
• Confident use of k9s
• Confident use of Kibana
• Confident use of Grafana
• Confident use of GitOps
• Confident use of Netscout
• Confident use of Wireshark
• Experience in YAML
• Experience in JSON
• Experience in agile forms of cooperation
• Basic willingness to take on on-call duty after thorough training

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

Skills

5G Core

kubectl

k9s

Kibana

Grafana

GitOps

NetScout

Wireshark

JSON

YAML

Agile cooperation

On-call readiness

Tools

Kubectl

K9s

Kibana

Grafana

GitOps

NetScout

Wireshark

YAML

JSON

Job description

Job ID: 744000160219390 4G/5G Core Network DB Operator (m/f/d) Madrid Professional Regular T-Systems Iberia

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. The Tribe Data is responsible for a system landscape of central components of the fixed and mobile network, which encompasses a wide range of different systems and platforms. The T-DAT SDM Lifecycle Squad is responsible for the planning and operation of the 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. This includes ensuring the stable operation of the SDM platform, as well as the deployment and piloting of the systems in a cloud environment. As part of this job posting, one Solution Designer is being sought for the SDM Lifecycle Squad. This position is based at the Telco Hub in Madrid.

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

Must Have Skills

• In-depth knowledge and experience in 5G Core (UDM, AMF, SMF, NRF)
• Confident use of kubectl
• Confident use of k9s
• Confident use of Kibana
• Confident use of Grafana
• Confident use of GitOps
• Confident use of Netscout
• Confident use of Wireshark
• Experience in YAML
• Experience in JSON
• Experience in classic forms of cooperation
• Experience in agile forms of cooperation
• Basic willingness to take on on-call duty after thorough training

Nice to Have Skills

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

About Us

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.

Benefits

• Compensation & benefits
• Flexible compensation plan (health insurance, meal vouchers, childcare, transport)
• Telemedicine
• Life and accident insurance
• Social fund
• 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
• Wellbeing & time off
• 26+ working days of vacation per year
• Free access to specialist services (medical, legal, wellness)
• 100% salary coverage during medical leave

Job Benefits

• Health & Insurance
• Flexible compensation plan (health insurance)
• Life and accident insurance
• Telemedicine
• Flexible compensation plan (meal vouchers, childcare, transport)
• 100% salary coverage during medical leave
• Social fund
• Work-Life Balance
• Hybrid work model (remote/on-site)
• Flexible working hours
• 26+ working days of vacation per year
• Professional 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
• Lifestyle & Wellness
• T-Social: social initiatives (sports, community, health, ...)
• Free access to specialist services (medical, legal, wellness)