System Engineer (m/f/d)

T-Systems Iberia; Granada; Hybrid; EUR 55,000 - 75,000; Full time

Benefits offered by this job

Hybrid work model

Health insurance

Meal vouchers

Telemedicine

Life and accident insurance

Social fund

Training and courses

Job summary

T-Systems Iberia in Madrid is seeking a skilled engineer to help build and automate a Kubernetes platform (T-CaaS) for cloud-native apps across Europe. You will write software to deploy clusters, configure components, and migrate existing Kubernetes environments, collaborating across cross-country squads.

Requirements include fluent English (B2), solid software engineering experience, and practical knowledge of Kubernetes, Cluster API, and Go.

Qualifications

• Fluent English (B2) is required.
• Solid software engineering experience in any languages and platforms.
• At least basic knowledge of Go, ideally using it for several years.
• Experience with microservice/cloud architecture (HTTP APIs, small decoupled programs).
• Strong background in using Kubernetes, preferably operating it in production.

Responsibilities

• Write software to automatically deploy Kubernetes clusters and manage components.
• Contribute to upstream open-source projects and fixes.
• Configure software components on clusters to provide platform features.
• Support migration of existing Kubernetes clusters to the new management platform.
• Provide third-level support to operations teams across Europe.

Skills

Kubernetes

Go

Cluster API

Git & GitLab

Jira

Confluence

CI/CD

Distributed systems

English (B2)

Tools

Kubernetes

Cluster API

Git

GitLab

Jira

Confluence

Job 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

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!

T-CaaS (Telekom Cluster-as-a-Service) is a platform jointly developed by Deutsche Telekom Technik GmbH and Technology Delivery International. This platform provides a managed Kubernetes clusters for all cloud-native applications, empowering application developers and owners across Deutsche Telekom and its national companies (NatCos) to do the following :

• Containerize their applications.
• Fast deploy and manage their application lifecycle.
• Operate at scale in production environments without worrying about the underlying infrastructure.

Deutsche Telekom Technik and Technology Delivery International are collaborating to create a unified/converged T-CaaS platform. The goal of T-CaaS Convergence is to achieve the following:

• Streamline the creation and management of kubernetes clusters.
• Guarantee carrier-grade quality for a shared cloud stack in Europe.
• Maintain high consistency in service delivery for the mass market.
• Enhance development and operations by consolidating resources and expertise.

You will help engineer a fully automated Kubernetes platform based on Cluster API that provides clusters to internal tenants. You will

• Write software to automatically deploy clusters, manage software components running on top of them and integrate with the surrounding infrastructure.
• Contribute to upstream open-source projects we consume to make improvements and fix bugs.
• Configure software components running on clusters to provide platform features.
• Support and enable the migration of existing Kubernetes clusters to the new management platform.
• Provide third-level support to the operations teams running Kubernetes platforms across europe.

Qualifications

Tools & Platforms:

• Git & GitLab.
• Kubernetes.
• Cluster API.
• Atlassian Jira, Confluence.

Optional:

• OpenStack (OpenStack API).
• vSphere vCenter (vCenter API).
• Baremetal Servers (Redfish API).
• Netbox (Netbox API).
• CI/CD Platform (GitLab-CI, GitHub Actions).

Skill requirements:

• English: fluent speaking and listening (B2).
• Solid sofware engineering experience (any languages, platforms).
• At least basic knowledge of Go, ideally using it for several years.
• Experience with microservice/cloud architecture (http apis, small decoupled programs).
• Strong background in using Kubernetes, preferably experience operating it as well.

Optional:

• Knowledge of controller-runtime (kubebuilder).
• Experience with Cluster API (or any of the alternatives).
• Contributions to open-source projects.

Additional Information

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 & 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!

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