Install, configure, patch, and upgrade AIX, RHEL, and Debian systems
Support and maintain high-availability clusters using HP Serviceguard, Pacemaker/Corosync, and Bull ARF
Diagnose and resolve complex system-level issues involving CPU, memory, I/O, network, kernel, and applications
Enforce security policies and system hardening through SSH, sudo, PAM, firewalls, SELinux, auditing, and access controls
Execute backup strategies and disaster recovery procedures using mksysb, NIM, and restore operations
Develop and deploy automation scripts using Bash, KSH, Python, and Ansible
Participate in on-call support and conduct disaster recovery and failover testing
Work with DBAs, application teams, storage, network, and security groups to ensure system reliability
Create and maintain detailed technical documentation and operational runbooks

Extensive understanding of Unix operating system internals
Strong analytical, problem-solving, and communication abilities
Proven experience with enterprise Unix and Linux platforms, specifically IBM AIX, Red Hat Enterprise Linux, and Debian
Background in production support, including troubleshooting, patching, automation, security hardening, and cluster management
In-depth knowledge of Unix infrastructure components such as storage, filesystems, networking, authentication, backup, restore, and performance optimization
Hands-on experience with clustering solutions including HP Serviceguard, Bull ARF, Pacemaker, and Corosync
Demonstrated skill in scripting and automation using Bash, KSH, Python, and Ansible

Inetum is hiring an Unix Systems Engineer