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Job Summary We are seeking an experienced Linux SME to provide expert-level support, governance, and optimization of enterprise Linux environments within a Managed Services framework. The role involves ensuring SLA-driven operations, high availability, security, and compliance while driving automation and continual service improvement. Key Responsibilities Act as the Linux Subject Matter Expert within the Managed Services team for escalations, operations, and technical advisory. Provide L3/L4 support for complex Linux-related incidents, problems, and changes across multiple distributions (RHEL, CentOS, Ubuntu, SUSE). Manage day-to-day Linux operations including monitoring, patching, OS upgrades, performance tuning, and troubleshooting. Ensure security hardening, compliance (CIS, PCI, SOX, ISO), and adherence to managed services baselines. Automate recurring administration tasks (patching, user management, monitoring) using scripting (Bash, Python) and tools (Ansible, Puppet, Chef). Support backup, DR, and high availability strategies for critical Linux workloads. Collaborate with AWS, Windows, Network, and Security SMEs to deliver integrated managed services. Conduct root cause analysis (RCA) for high-severity issues and present service improvement recommendations. Contribute to Service Improvement Plans (SIPs) and Continuous Service Improvement (CSI) initiatives. Provide documentation, knowledge base articles, and operational runbooks for L1/L2 teams. Mentor and train junior engineers to strengthen Linux operational capability in the Managed Services team. Required Skills & Qualifications 8–12 years of IT experience with at least 5+ years in Linux administration in enterprise environments. Deep expertise in Linux OS (RHEL, CentOS, Ubuntu, SUSE) and system internals. Strong experience in day-to-day managed services operations (incident, problem, change, patch management). Hands-on automation experience using Ansible, Puppet, Chef, or similar. Proficiency in scripting (Bash, Python, Perl). Strong troubleshooting skills in multi-tier, distributed, and hybrid environments. Experience with monitoring and observability (Nagios, Zabbix, Prometheus, Grafana, ELK, Splunk). Knowledge of virtualization (VMware, KVM) and Linux on cloud platforms (AWS, Azure, GCP). Familiarity with ITIL processes and managed services delivery. Excellent communication and customer-handling skills for escalations and service reviews. Preferred Qualifications RHCE / RHCSA / LFCS certifications. Knowledge of containers (Docker, Podman) and orchestration (Kubernetes, OpenShift). Experience in hybrid cloud Linux operations and multi-tenant managed environments. Exposure to security/compliance frameworks (PCI, SOX, ISO 27001). Experience with service governance, audits, and RCA preparation for customers
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