Senior Unix/Linux Automation Engineer

Position Overview: Infrastructure Operations & Engineering team is seeking a Senior Unix Expert to join our global Unix Team, supporting India-hours coverage for a team that hosts critical applications, including Oracle-based Retail Management Systems (RMS). This is a senior-level individual contributor role requiring strong hands-on experience with a multi-platform enterprise environment spanning Oracle Linux (OL7/OL8/OL9) and AIX systems and automation-oriented development. The ideal candidate will be able to independently troubleshoot complex infrastructure issues, identify automation opportunities, plan and implement automation efforts, drive technical work through completion, and collaborate across infrastructure, security, cloud, database, network, storage, and application teams.

Unix Server & Infrastructure Engineering (30%) Administer, patch, and maintain Oracle Linux and AIX servers; manage lifecycle and compliance using tools like OS Management Hub, Tanium, or equivalent. Manage virtual machine provisioning, migration, lifecycle, and decommissioning across Nutanix AHV and GCP. Support server standards, provisioning processes, infrastructure upgrades, migrations, and modernization initiatives. Troubleshoot complex server and infrastructure issues, perform root cause analysis, and drive corrective actions. Diagnose system memory, disk I/O, and storage performance issues (e.g., Virtual SCSI tuning) in high-availability environments. Coordinate with application, database, network, storage, cloud, and security teams to resolve cross-platform issues. Processes automation (30%) Design, build, and maintain Ansible playbooks to manage configuration across heterogeneous Linux/AIX fleets. Lead discovery, planning, and implementation phases of new automation initiatives to reduce manual operations. Security & Patch Management (25%) Support Linux and AIX Server patching using Tanium and related enterprise tools. Remediate vulnerabilities and security findings within defined SLAs. Support infrastructure security tools such as CrowdStrike and Delinea Secret Server. Prepare and execute production infrastructure changes following established change management processes. Operational Support (15%) Take ownership of incidents and escalations through diagnosis, coordination, resolution, and documentation. Support monitoring and observability using platforms such as Datadog. Manage ITSM tickets and engineering work through Jira Service Management. Create and maintain technical documentation, runbooks, and operational procedures. Participate in disaster recovery testing, maintenance windows, and on-call support.

5+ years of hands-on experience supporting Linux OS (Oracle Linux preferred) in enterprise/production environments. 4+ years of experience using Ansible for configuration management across Linux and AIX servers. Working knowledge of patch management tools and zero-downtime patching strategies. Proven experience driving automation projects from discovery through implementation. Strong Ansible playbook scripting and automation skills. Experience with Active Directory SSSD integration troubleshooting. Experience with Nutanix AHV. Experience with enterprise patch management and vulnerability remediation. Experience with ITSM and production change management processes. Ability to independently manage complex technical work with limited supervision. Strong written and verbal English communication skills. Ability to participate in on-call support and after-hours maintenance when required.

Experience with Tanium, CrowdStrike, Delinea Secret Server, and/or Datadog. Experience supporting Linux workloads in GCP and/or AWS. Experience with certificate management (creation/update). Familiarity with FreeRADIUS, LDAP, or Kerberos. Familiarity with Terraform and Infrastructure as Code. Exposure to CI/CD and infrastructure automation platforms such as GitHub Actions or Jenkins. Experience with infrastructure migrations, cloud initiatives, or data center modernization. Relevant Linux, cloud, virtualization, or infrastructure certifications.