Job Description

KEY RESPONSIBILITIES:

§ Lead a team of UNIX/Linux system administrators in managing enterprise AIX and RHEL environments.

§ Define and implement operational standards, best practices, and automation frameworks for system builds, configuration, and maintenance.

§ Act as the primary technical escalation point for complex UNIX/Linux infrastructure issues.

§ Collaborate with architecture, storage, network, security, and application teams to deliver integrated infrastructure solutions.

§ Manage the installation, configuration, patching, and lifecycle management of AIX (Power Systems) and RHEL servers.

§ Maintain and administer logical partitions (LPARs), volume groups, and filesystems on AIX systems using tools such as HMC, VIOS, and NIM.

§ Administer Red Hat Satellite for patch management and system provisioning.

§ Monitor system health, availability, and performance using enterprise tools (e.g., Nagios, Red Hat Insights, BigFix, or similar).

§ Coordinate and validate OS migrations, upgrades, and hardware refreshes across multiple data centers or cloud environments.

§ Develop and maintain automation scripts using Bash, Python, or Ansible to streamline provisioning, patching, and configuration.

§ Implement Infrastructure as Code (IaC) practices where applicable to improve consistency and scalability.

§ Ensure adherence to corporate and industry security standards (CIS, NIST, SOX, PCI).

§ Perform regular security patching, system hardening, and vulnerability remediation.

§ Manage access controls, sudo policies, and identity integration with LDAP/Active Directory.

§ Participate in security audits and develop corrective action plans as needed.

§ Drive root cause analysis (RCA) for major incidents and implement preventive measures.

§ Lead capacity planning, forecasting, and performance tuning efforts.

§ Maintain comprehensive system documentation and standard operating procedures (SOPs).

§ Provide after-hours or on-call support for high-priority incidents when required.

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QUALIFICATIONS:

§ Bachelor’s degree in Computer Science, Information Technology, or equivalent experience.

§ 8+ years of UNIX/Linux system administration experience in large-scale enterprise environments.

§ 3+ years in a lead or senior-level capacity managing AIX and Red Hat environments.

§ Deep expertise with IBM Power Systems, AIX LPAR/VIOS management, and NIM-based deployments.

§ Strong proficiency in Red Hat Enterprise Linux (RHEL 5/6/7/8/9), including package management (YUM/DNF), SELinux, and systemd.

§ Experience with automation and configuration tools (Ansible, Puppet, or Chef).

§ Solid understanding of networking, storage (SAN/NFS), and backup/recovery principles.

§ Proven track record in system performance tuning, troubleshooting, and capacity management.

Preferred Certifications:

§ Certifications such as Red Hat Certified Engineer (RHCE), Linux Foundation Certified Engineer (LFCE), or IBM Certified AIX System Administrator.

§ Familiarity with cloud and virtualization platforms (VMware, PowerVM, AWS, or Azure).

§ Experience integrating UNIX/Linux systems into hybrid cloud or container environments (OpenShift, Kubernetes).

§ Knowledge of monitoring, observability, and ITSM tools (ServiceNow, Dynatrace, etc.).

Soft Skills:

§ Leadership and mentoring in a technical team environment.

§ Excellent problem-solving, analytical, and decision-making skills.

§ Strong communication and collaboration across multidisciplinary teams.

§ Commitment to operational excellence, reliability, and continuous improvement.

§ Strong analytical, problem-solving, and troubleshooting skills.

§ Excellent communication and documentation abilities.

§ Leadership mindset with a focus on collaboration, accountability, and continuous improvement.

§ Proven ability to lead cross-functional initiatives and manage technical deliverables end-to-end.

§ Ability to thrive in a fast-paced, enterprise-scale environment.