Senior Linux System Administrator

2 days ago

Budapest, Budapest, Hungary Deutsche Telekom IT Solutions HU Full time

Company Description
As Hungary's most attractive employer in 2025 (according to Randstad's representative survey),
Deutsche Telekom IT Solutions
is a subsidiary of the Deutsche Telekom Group. The company provides a wide portfolio of IT and telecommunications services with more than 5300 employees. We have hundreds of large customers, corporations in Germany and in other European countries.

DT-ITS recieved the Best in Educational Cooperation award from HIPA in 2019, acknowledged as the the Most Ethical Multinational Company in 2019. The company continuously develops its four sites in Budapest, Debrecen, Pécs and Szeged and is looking for skilled IT professionals to join its team.

Job Description
We are seeking an experienced and proactive
Senior Linux System Administrator
to join our team. If you have a deep understanding of Linux environments, are passionate about automation, and enjoy working in a collaborative, forward-thinking environment—this opportunity is for you.

Tasks:

  • Maintain and improve Linux-based infrastructure
  • Automate repetitive tasks using scripts and configuration management tools
  • Monitor system performance and ensure system availability and reliability
  • Troubleshoot and resolve system-related issues
  • Collaborate with development, operations, and security teams
  • Mentor junior team members and provide technical guidance

Qualifications

  • 5+ years of proven experience as a Linux administrator.
  • Strong knowledge of RHEL (Red Hat Enterprise Linux) – intermediate to advanced
  • Solid experience with BASH scripting – intermediate or higher
  • Hands-on expertise with YUM and RPM package management
  • In-depth understanding of network management – IP, routing, firewall configuration
  • Confident in user and group administration, SSH key management
  • Practical experience with Ansible – basic to advanced (role-based deployment, playbooks)
  • Familiarity with automation tools from an administrative perspective
  • Experience working with YAML and Jinja in automation/configuration contexts
  • English – strong written and verbal communication skills
  • Hyrid setup within Hungary: 4 days HO/ 1 day office per week

Nice To Have/preferred Skills And Experience (not Required)

  • German – communication-level proficiency
  • Knowledge of Python or other scripting/programming languages
  • Familiarity with containerization platforms – Docker, Kubernetes
  • RHEL certifications (RHCSA, RHCE, or any other level)
  • Ansible Automation Platform (AAP) certificate

Additional Information

  • Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation.

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