Role Summary

We are seeking an experienced L3 AIX/Linux Administrator to lead operational support for Unix/Linux infrastructure. The role will involve platform administration, lifecycle management, Incident resolution, Request, change and problem management along with modernization initiatives.

Project Activities & Responsibilities

- Lead AIX and Linux operations team and interface with Customer ensuring stable and efficient operation of the infrastructure estate.
- Own and drive the resolution of complex incidents, major incidents, escalations, and recurring problems across AIX & Linux operating systems.
- Provide technical guidance to L2 support teams and coordinate with IBM, Red Hat and application teams for complex troubleshooting.
- Lead Incident, Request, Change, and Problem Management activities using IT service management processes and ServiceNow.
- Develop and execute lifecycle and refresh activities for AIX and Linux platforms including lead and drive ongoing AIX End of life upgrade program in FY 2027.
- Execute AIX operating system upgrades and VIOS upgrades
- Plan, coordinate, and execute Power Path v7 to MPIO migration
- Oversee AIX and Linux patching, vulnerability remediation, security hardening, audit compliance, and risk mitigation in coordination with application owners.
- Create and maintain operational procedures, technical documentation, implementation plans, rollback plans, and knowledge articles.
- Use scripting to automate day-to-day operational tasks.

Technologies/Platforms (Mandatory)

- IBM AIX 5,6,7.1,7.2, 7.3 administration in enterprise environments.
- Red Hat Enterprise Linux 6, 7, 8, and 9 administrations.
- IBM Power Systems P8, P9, and P10, including Virtual I/O Server versions 3 and 4 administration and lifecycle management.
- Red Hat Satellite for License/Patch Management
- IT service management platforms, preferably ServiceNow, supporting Incident, Request, Change,



and Problem Management.

Technical Skills (Mandatory)

- Advanced administration and troubleshooting of IBM AIX and RHEL/Linux versions.
- Expertise in
- LPAR management
- NIM administration
- VIOS management
- Power VM virtualization.
- PowerHA/HACMP clustering administration.
- Power Path troubleshooting and migration to MPIO.
- Multipathing and disk management
- Power Path troubleshooting and migration to MPIO.
- Strong skills in
- Operating system upgrades & migrations
- Server Build (Physical & Virtual)
- Server decommissioning
- Patching, and maintenance lifecycle management.
- Vulnerability remediation, security hardening, audit support, and compliance evidence.

Desired Skills (Preferred/Good to have)

- Automations skills: Shell scripting, Bash, Ansible, Python
- Knowledge of enterprise backup and recovery solutions
- Enterprise monitoring and privileged-access solutions such as Dynatrace, Delinea knowledge
- GPFS upgrades, updates, administration, and troubleshooting
- Performance tuning, Capacity optimization

Required Experience and Qualifications

- 10+ years of experience in AIX and Linux infrastructure administration, engineering, and operational support.
- Proven experience leading or coordinating L3 infrastructure support for critical production systems
- Extensive hands-on experience managing large-scale AIX and Linux environments, including lifecycle management, upgrades, patching, performance tuning, capacity planning, and troubleshooting.
- Hands-on experience with VIOS upgrades and power path migrations.
- Experience managing vulnerability remediation, security compliance, audit activities, and infrastructure risk across AIX and Linux platforms.
- Strong written and verbal communication skills, including the ability to explain technical risks, plans, and outcomes to stakeholders.
- Ability to work independently, lead technical activities, manage priorities, and support distributed teams.

📌 AIX/Linux SME (México)
🏢 Infosys
📍 México