Sr Systems Engineer - RHEL
Mercury Insurance · Remote, UNAVAILABLE, US
About this role
## Overview The Systems Engineer, Senior is a senior-level role working independently to design, implement, administer, and support critical, high-transaction systems with direct customer, revenue, and/or compliance impact. You’ll mentor and share technical expertise with less experienced systems engineers. ## Responsibilities - Implement infrastructure systems and components supporting business and IT applications (hardware, servers, software/OS, packaged software, configuration files, security certificates, database systems, and appliances) - Independently conduct implementations: installation, configuration, updates, documentation, and knowledge transfer - Analyze, diagnose, isolate, and identify system problems; provide short-term fixes and long-term remediation plans - Support compliance-related activities (reporting, baselines, verifications) - Participate in application development by reviewing non-functional requirements and delivering supporting infrastructure - Occasionally manage small-scale IT projects and/or provide technical leadership for architecture design and validation - Share knowledge and mentor less experienced staff - Promote best practices across capacity, asset/inventory, configuration, updates, procurement, and vendor engagement - Develop, design, test, and document improvement solutions/processes (scripting, automation, workflow) to improve efficiency, reliability, scalability, and cost effectiveness - Interact professionally with customers, vendors, superiors, and peers ## Qualifications **Education** - BS in Computer Science (or related field) or equivalent combination of education and work experience **Experience** - Minimum 5–7 years in systems engineering (or related) in a medium or large organization **Preferred Experience** - Strong Red Hat Enterprise Linux administration (systemd, rpm/dnf, SELinux, firewalld, cgroups, journald/auditd troubleshooting) - Advanced Bash scripting for administration, automation, monitoring, and operational tooling - Linux security hardening & compliance (FIPS/crypto policy, SSH keys/certificates, sudo/least-privilege accounts, permissions, CIS/SOX/PCI controls) - Vulnerability remediation tracking (e.g., CVE status, needs-restarting) - Linux storage & performance diagnosis (LVM/filesystems, NFS, iSCSI/FC with multipath, /proc and PSI, I/O/memory/CPU-steal analysis) - Virtualization/hosts: hands-on Proxmox/KVM (clusters, HA, backup with PBS), ideally VMware experience - Enterprise networking concepts (bastion/jump hosts, proxies, VIPs/load balancers, bonding, VLANs, MTU) - Git-based workflows (branching, PRs, code review, CI/CD runners/pipelines) - Infrastructure as Code & configuration management (Ansible, Terraform, or comparable) - Monitoring/logging for Linux services (Telegraf/Prometheus/Grafana or similar; log retention awareness) - Supporting Linux-hosted application/middleware (Apache, Tomcat, Kafka/messaging, Solr, etc.) - Writing clear root cause analyses and leading incidents end-to-end with security/networking/storage/application teams ## Location / Interview - An in-person interview may be required during the hiring process. ## Pay Range - **USD $94,458 – $179,048 /Yr** (varies by location) - In **CA**, typical hiring range is **$123,077.70 – $170,941.25** ## Perks & Benefits (Highlights) - Competitive compensation and bonus potential - Flexibility to work from anywhere in the United States for most positions - Paid time off (vacation, sick time, 9 paid c
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