Linux/UNIX System Administrator

About us

Siemens

We are a technology company focused on industry, infrastructure, transport, and healthcare. By combining the real and the digital worlds, we empower our customers to transform their industries and markets, helping them to transform the everyday for billions of people.

Job description, responsibilities and duties

Main Responsibilities

• Installation and configuration of Siemens Grid Control Systems, including hardware, software, and relevant third-party products such as operating systems, Nagios, and related components
• Administration and support of Linux / UNIX and Windows Server environments
• Preparation of test cases and execution of basic system and infrastructure tests
• Detection, analysis, and troubleshooting of issues in solutions used 24/7 within critical infrastructure
• Responsibility for the system infrastructure of complex control center computer systems, including planning, configuration, and testing of:
• Firewalls
• DMZ environments
• IP addressing
• Vulnerability testing
• Network and routing basics
• Applying and maintaining IT security standards for critical infrastructure systems, including:
• Multifactor authentication (MFA)
• Encryption standards and protocols
• System hardening
• Malware protection in air-gapped environments
• Centralized user management
• Role-based access control (RBAC)
• Security standards and benchmarks such as CIS Benchmark, ISO 27001, and IEC 62443
• Supporting infrastructure topics such as:
• Clustering and redundancy
• Hardening of IT infrastructure
• Authentication concepts
• Clarifying technical concepts and solutions with customers
• Supporting the Sales Department with technical concepts and consulting during tender processes
• Reading, understanding, and analyzing shell scripts and source code where needed
• Supporting continuous improvement and operational excellence in a diverse international environment

Requirements

Technical Skills

• Good command of English (minimum B2 level)
• Advanced knowledge of Linux / UNIX administration
• Good knowledge of Windows Server administration
• Basic knowledge of network technologies, especially routing and switching
• Ability to read and understand shell scripts
• Basic scripting / programming knowledge (e.g. Bash, PowerShell, ksh) is an advantage
• Basic understanding of source code (e.g. C, C++, Perl) is beneficial
• Familiarity with Git
• Basic knowledge of IT security, including hardening, patch management, authentication concepts, and encryption
• Knowledge of hardware and enterprise server technologies, such as:
• BIOS configuration
• RAID arrays
• Clustering
• Redundancy concepts
• Basic understanding of Oracle Database
• Experience with virtualization technologies is an advantage – KVM, RHEL OpenShift, VMWARE
• Good to have: knowledge of Ansible for automation of system administration tasks
• Optional: knowledge of Solaris
• Experience with Jira / Confluence

Language Skills

• English – Intermediate level (B2)
• German – is an advantage, or willingness to learn

Education & Experience

• Relevant IT education background (University degree in Information Technology or comparable practical experience)
• Experience in system administration within Linux / UNIX environments
• Experience with Windows Server administration is desirable
• Experience in infrastructure-related projects or support for critical systems is an advantage

Personal Qualifications

• Strong analytical and problem-solving skills
• Ability to work independently and solve problems on your own
• Communicative and customer-oriented personality
• Team player with a proactive and hands-on attitude
• Business process-oriented mindset
• Self-structured, reliable, and independent working style
• Willingness to learn new technologies and continuously grow
• Interest in developing within Siemens Grid Control Software and critical infrastructure systems
• General willingness to travel
• Travelling to Vienna HQ once per week is mandatory

What We Offer

• Multi-cultural and international team environment
• Diversified and technically interesting working field
• Flexible working hours
• Work in a fast-growing business unit
• Support for individual education, training, and certifications
• Opportunity to work on mission-critical infrastructure solutions with modern security and system administration technologies

Required education, skills and personality requirements

Required education

Secondary with school-leaving examination
Follow-up/Higher Professional Education
University education (Bachelor's degree)
University education (Master's degree)
Postgraduate (Doctorate)

Language skills

Other knowledge

We offer

Home office, telework
Flexible working hours (9:00 – 15:00), short Fridays
Bridge days – 5 days/year
Sick days – 3 days/year
Additional paid leave
Cafeteria system - BenefitPlus = 300 points / € per year
Contribution to 3rd pillar pension up to 3% of gross salary (after the employment trial period)
Sick leave compensation and Sick Leave to Care for a Family Member compensation (up to 100% of salary, 20 days/year)
Childbirth bonus of 300€
Contribution for attending a preschool facility (200€)
Contribution for representative sports activities
MultiSport
2 SIM cards with discounted employee flat rate also for family members
Employee referral bonus up to 2 000€
Opportunity to invest in the purchase of Siemens shares
Discounts for employees (electronics, language courses, vacation stays...)
Discounted employee´s loans
Wellbeing program, Health Day, team-building program
Education in various fields of your choice
Work anniversary present and life anniversary contribution
Valuable gift on the occasion of retirement

How it looks here