AIX/Linux Administrator

BULL-IT SOLUTIONS LTD; Región Centro, Monterrey; Hybrid; MXN 900,000 - 1,300,000; Full time

Job summary

BULL-IT SOLUTIONS LTD is seeking an experienced Senior IT Infrastructure Engineer to lead AIX and Linux operations, ensure stable and efficient infrastructure performance, and coordinate with customers and external vendors.

The role demands 10+ years of hands-on AIX and Linux expertise, plus strong collaboration with L2/L3 teams and service providers to drive incidents, changes, and improvements across the estate.

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 with lifecycle management, upgrades, patching, and performance tuning in large AIX/Linux environments.
• Experience with VIOS upgrades and Power Path migrations.
• Strong communication skills and ability to coordinate with distributed teams.

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 End of Life upgrade programs.
• Execute AIX OS upgrades and VIOS upgrades; plan migration to MPIO.
• Oversee patching, vulnerability remediation, security hardening, audit compliance, and risk mitigation.
• Create and maintain operational procedures, documentation, and knowledge articles.
• Use scripting to automate day-to-day operational tasks.

Skills

AIX administration

Linux administration

Incident management

Leadership

VMware/VIOS

Scripting (Shell/Bash)

IT service management

Tools

AIX

RHEL/Linux

VIOS

NIM

PowerPath/MPIO

ServiceNow

Job description

• This is a full-time hybrid position. This position is available for Guadalajara,Mexico City,and Monterrey locations.


• Only candidates who are currently based in Mexico are eligible to apply.

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.


• LPAR management


• NIM 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)


• 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.