Senior System Administrator (Linux, Networking & Automation) (m/f/d)

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.

As a System Administrator, you bring deep knowledge of Linux and modern cloud technologies. You will play a key role in operating, maintaining, and continuously enhancing our T-Cloud Public platform, always with a strong customer‑oriented mindset.

Responsibilities and Duties:

• Solve complex problems in the daily operation of a hyper-scaler's cloud backend.
• Install and configure software and hardware.
• Manage network devices.
• Monitor performance and maintain systems according to requirements.
• Troubleshoot issues.
• Ensure security through access controls, backups and firewalls.
• Consistently automate with common automation frameworks.
• Work in a team of specialists where everyone helps each other in an open and trusting manner.

Must-have requirements:

• Completed studies in a technical, engineering, or scientific field, or equivalent professional training.
• 5–7 years of professional IT experience with a focus on modern cloud technologies.
• Strong hands‑on experience with Linux, Bash, and network‑related services.
• Excellent knowledge of physical and virtual networks, routing, and firewalls.
• Extensive experience in infrastructure automation.
• High customer orientation and problem‑solving mindset.
• Knowledge of agile development processes is considered a plus.
• Fluency in written and spoken English.

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

• 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!



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.