Position Overview
Our client is seeking an experienced Linux Administrator to support a mission-critical research environment that directly enables world-class research. This is an individual-contributor role requiring deep technical knowledge of Red Hat Enterprise Linux ecosystems (Rocky Linux, RHEL, CentOS), automation, and operational excellence in a highly collaborative non-profit research setting. This position is located within a group otherwise engaged in management of Windows-based directory services and Nutanix virtual environments, that is transitioning to a more DevSecOps automated operations regime.
Required Qualifications
- Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent professional experience)
- W2 Only
- 3+ years of hands-on Linux systems administration experience in production environments
- Experience with Rocky Linux and other Red Hat-based distributions
Core Technical Competencies
Administration of Rocky Linux / RHEL including :
Systems service managementPackage management (dnf / yum)Filesystem administration and optimization (ext4, XFS, LVM)Security hardening and compliance (CIS benchmarks, SELinux, firewalld)SSSD and Active Directory realm bindingPatch management strategies and executionKernel, filesystem, and network performance tuningStrong proficiency in core networking concepts and protocols, including :
In-depth understanding of the TCP / IP stack and packet flowIPv4 / IPv6 addressing, subnetting, VLSM, and CIDR notationStatic and dynamic routing principles (OSPF, BGP, EIGRP experience a plus)Configuration and troubleshooting of DHCP, DNS (including BIND and authoritative / resolver roles), and related servicesVLANs, trunking (802.1Q), and Layer 2 / Layer 3 switching fundamentalsCommon network services and protocols (NTP, SNMP, ICMP, ARP, etc.)Packet analysis using tools such as tcpdump and WiresharkScripting capability : Bash, sed, awk, grep (must be able to develop and debug complex scripts)
Key Responsibilities
Proactively monitor, maintain, and troubleshoot Linux-based research computing systems serving premier biomedical researchersProvide white-glove, courteous, and clear technical support via ticket system and direct researcher interactionPartner with DevSecOps and InfoSec team members to create, enhance, and harden automation of Linux system managementOwn and continuously improve Standard Operating Procedures (SOPs) in ConfluenceActively participate in weekly Change Control process using Jira Service ManagementMaintain accurate, real-time infrastructure documentation and asset records in NetBox and JSM Assets; coordinate with Finance for federal grant complianceTrack daily tasks, projects, and deliverables in Jira; participate in monthly workload reviewCollaborate closely with DevSecOps, Network, Windows, HPC and Information Security teams to resolve complex incidentsOffer guidance and mentorship to other technical staff to learn Linux system administration and related technologies and skillsets