Senior Consultant

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.

• 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.

• 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.

• 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

• 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.