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

T-Systems Iberia

Madrid

Hybrid

EUR 40,000 - 60,000

Full time

14 days+

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Benefits offered by this job

Flexible compensation plan

26+ vacation days

Access to Coursera

Job summary

T-Systems Iberia based in Madrid is seeking a Solution Designer for the SDM Lifecycle Squad. This role focuses on the operation of 5G Core domain systems, incident management, and ensuring stable operations in a cloud environment.

The ideal candidate will possess in-depth knowledge in 5G Core technologies, alongside proficiency in tools like Kubernetes, Kibana, and Grafana. The position also offers a hybrid work model with flexible hours and a range of employee benefits.

Qualifications

In-depth knowledge in 5G Core (UDM, AMF, SMF, NRF).
Confident use of monitoring tools like Kibana and Grafana.
Basic willingness to take on on-call duty after thorough training.

Responsibilities

Operate frontend systems in the 5G Core domain.
Monitor systems using Kibana and Grafana.
Resolve incidents and support problem management.

Skills

5G Core knowledge

kubectl usage

Kibana and Grafana proficiency

Incident resolution

YAML and JSON experience

Tools

Kubernetes

GitOps

NetScout

Wireshark

Job description

Company Description

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.

Job Description

Project / Role Overview

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 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‑DAS 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.

Responsibilities And Duties

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

Qualifications

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, experience in classic and agile forms of cooperation
Basic willingness to take on on‑call duty after thorough training

Nice‑to‑have Requirements

Basic knowledge of 4G Core (HSS, DRA)

Tools and Platforms

CNTDB, UDM+AUSF (AMF, SMF, NRF) Kubernetes based Cloud, kubectl, k9s, Kibana, Grafana, GitOps, Netscout and Wireshark

What do we offer you?

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