Hiring: Senior UNIX System Administrator (Linux / AIX / Solaris)

Location: Madrid and Málaga, Spain

Work Model: Hybrid, 1 day per week onsite

Language Requirement: English (B2+)

We are looking for a Senior UNIX System Administrator to join an international infrastructure team responsible for managing and supporting Linux, AIX, and Solaris environments. This role requires a proactive professional who can work independently, troubleshoot complex issues, and collaborate effectively with global teams while meeting established SLAs.

Key Responsibilities:

- Manage and support UNIX environments, including Linux, AIX, and Solaris
- Perform system administration, monitoring, and infrastructure health checks
- Handle incidents, problems, changes, and service requests
- Support cluster operations and daily infrastructure activities
- Monitor and maintain AIX environments, including legacy systems
- Implement parameter changes and ensure system stability
- Collaborate with international teams in English





Required Skills:

- UNIX/Linux system administration experience
- Strong expertise in Red Hat Enterprise Linux (RHEL)
- Experience troubleshooting Linux operating systems and hardware issues
- Knowledge of virtualized environments
- Familiarity with VMware and SAN technologies
- Experience with IBM Power Systems infrastructure
- Understanding of DNS, HTTP, LDAP, SMTP, and SNMP protocols
- Strong problem-solving and communication skills

Preferred Qualifications:

- Experience with legacy AIX environments
- RHCE, RHCT, LPIC, or other Linux certifications
- Experience working in enterprise or multinational environments

If you have a strong UNIX/Linux administration background and are looking to work in a general enterprise environment, I would be happy to connect and discuss this opportunity.

📌 Unix System Administrator (Valencia)
🏢 Hays
📍 Valencia