Senior AIX System Administrator

We are looking for a Senior AIX System Administrator to join a team supporting international clients, with a strong focus on managing and maintaining critical environments based on IBM AIX. This role is ideal for highly experienced professionals who value autonomy, stability, and operational excellence.

Key Responsibilities:

• Administer and support IBM AIX systems in enterprise environments
• Ensure platform availability, performance, and security through proactive and corrective actions
• Monitor systems, identify anomalies, and ensure timely resolution
• Perform maintenance activities, upgrades, and advanced troubleshooting
• Collaborate with international teams in managing critical infrastructures
• Contribute to technical documentation and continuous improvement of operational processes

• Proven experience of over 5 years in IBM AIX system administration
• Strong background in corporate environments and critical infrastructures
• Solid knowledge of Unix/Linux operating systems
• Experience in supporting and operating mission-critical platforms
• Strong troubleshooting and problem-solving skills in complex environments
• High level of autonomy and sense of responsibility
• Strong analytical and problem-solving capabilities
• Organizational skills and attention to detail
• Good communication skills and ability to work with distributed teams
• Proactivity and continuous improvement mindset

• Workplace type: Hybrid (max. of 3 times per week in the office)
• Location: Picoas, Lisboa