As a Senior Linux Administrator, you will be responsible for the end-to-end lifecycle management of Linux platforms, ensuring high levels of availability, security, performance, and recoverability . You will work closely with infrastructure, cyber security, and application teams to deliver stable and secure services aligned with enterprise standards and governance frameworks. Key Responsibilities Linux Administration & Engineering Build, configure, patch, and upgrade enterprise Linux environments (RHEL/Oracle Linux preferred) Perform system health checks, performance tuning, and troubleshooting Lead platform lifecycle activities including migrations, upgrades, and refresh initiatives Security & Compliance Implement and maintain Linux security hardening standards Identify and remediate vulnerabilities across OS and configurations Support audit and compliance requirements through documentation and evidence Automation & Configuration Management Develop scripts using Bash and/or Python to automate operational tasks Manage job scheduling tools (e.g. Autosys or equivalent) Work with configuration management tools such as Ansible or Puppet Storage, Backup & Recovery Manage Linux storage (mounts, multipathing, filesystem configuration) Support backup and recovery processes (e.g. Veeam or similar) Ensure systems are recoverable through testing and runbooks Support & Service Management Provide Level 3 support for incidents and problems Perform root cause analysis and implement preventative fixes Maintain monitoring and alerting integrations (e.g. Splunk or similar) Collaboration & Delivery Work across infrastructure, security, and application teams Execute changes following structured delivery and governance practices Produce clear documentation and communicate effectively with stakeholders Participate in an on-call roster for after-hours support and maintenance Key Skills & Experience Strong experience with enterprise Linux environments (RHEL/Oracle Linux) Proven expertise in security hardening and vulnerability remediation Solid scripting skills ( Bash, Python ) and automation mindset Experience with Autosys (or similar) and Ansible/Puppet Knowledge of storage, backup, and recovery solutions Experience working within ITSM frameworks (incident, problem, change) Strong troubleshooting, documentation, and stakeholder engagement skills
