Linux Storage System Administrator

Salary: $72,000 - 112,000 per year Requirements: At least 7 years of systems administration or infrastructure engineering experience, including 5 or more years administering enterprise NAS and SAN storage in production environments. Hands-on experience with at least one major enterprise storage platform, such as VAST Data, NetApp ONTAP, Dell PowerScale, Dell PowerStore/Unity, Pure Storage, or HPE. Strong knowledge of NFS v3/v4.x and SMB 2/3, including export and share permissions, multi-protocol access, and Active Directory/LDAP identity mapping. Demonstrated Fibre Channel and iSCSI experience, including Brocade or Cisco MDS switch zoning, LUN provisioning and masking, and host multipathing with DM-Multipath and Windows MPIO. Experience planning and executing multi-terabyte to petabyte-scale data migrations with integrity checks and minimal downtime. Knowledge of RAID and erasure coding, snapshots, replication, enterprise backup platforms, and disaster recovery planning and testing. Ability to diagnose and optimize IOPS, throughput, and latency across storage, network, and host layers. Senior-level Linux administration, Bash and Python scripting, and server hardening skills. Experience managing Windows Server and Active Directory in environments that also use Linux. Hands-on experience building and supporting Hyper-V failover clusters, including shared storage for Cluster Shared Volumes. Understanding of TCP/IP, VLANs, DNS, DHCP, and firewalls. Ability to work independently in a fast-paced, on-site setting, lead concurrent hardware and software projects, and communicate effectively with technical and scientific stakeholders. Preferred: VAST Data experience; storage certifications or training such as NetApp NCIE/NCAP, Dell Technologies Proven Professional, Pure Storage FlashArray Architect, SNIA SCSP/SCSE, or VAST Data training. Preferred: Systems certifications such as RHCSA, RHCE, CompTIA Linux+, or Microsoft Certified: Windows Server Hybrid Administrator Associate. Preferred: Experience supporting bioinformatics, genomics, or other high-throughput research workloads, and work in high-availability, regulated healthcare, clinical laboratory, or life sciences environments. Preferred: Experience with S3 object storage and cloud tiering or archiving to AWS or Azure; automation using Ansible, PowerShell, or vendor REST APIs; or VMware vSphere or KVM alongside Hyper-V. Preferred: Familiarity with high-speed storage networking, including 25/100GbE, jumbo frames, and RDMA/RoCE or InfiniBand. Responsibilities: We design, build, and manage enterprise NAS and SAN platforms, including capacity layouts, storage tiers, data protection policies, and performance targets. We integrate newly installed VAST Data hardware into the Aliso Viejo core network and configure views, NFS/SMB/S3 protocols, quotas, QoS, snapshots, and replication for production. We manage NFS and SMB/CIFS shares, export policies, multi-protocol permissions, and storage identity mapping with Active Directory and LDAP. We provision Fibre Channel and iSCSI block storage, including LUNs, masking, FC zoning, initiator groups, and multipathing on Linux and Windows hosts. We provide shared storage for Hyper-V failover clusters, including Cluster Shared Volumes and SMB 3.x file shares for virtual machine workloads. We plan and perform migrations from legacy storage using tools such as rsync, Robocopy, or vendor utilities; verify data integrity, limit cutover downtime, and coordinate share validation with Bioinformatics. We monitor IOPS, throughput, and latency, optimize storage and network paths for large genomics files, and develop capacity forecasts to inform procurement. We manage snapshots, replication, and backup integrations, establish and test RPO/RTO targets, and conduct restore and disaster recovery exercises. We plan and carry out non-disruptive firmware and software upgrades for storage arrays, controllers, HBAs, and switches. We deploy, configure, and maintain Linux servers, perform NFS client tuning and autofs configuration, and administer LVM. We install Hyper-V hosts and finalize cluster networking, storage, and configuration for production workloads. We administer Windows Server environments, including Active Directory, Group Policy, DNS/DHCP, and file-share permissions. We conduct hardware audits, patch systems, and apply updates to reduce security risks. We act as the primary escalation point for complex system and storage failures, investigate root causes, and implement preventive fixes. We apply access controls, encryption, and audit practices appropriate to regulated healthcare and laboratory environments. We maintain system and storage documentation, runbooks, disaster recovery plans, and procedures. We mentor junior staff and transfer knowledge to customer operations teams. Technologies: AWS Active Directory Ansible Architect Azure Bash Cloud Cisco Firmware Hardware Hyper-V InfiniBand KVM LDAP Linux Network NFS PowerShell Python RDMA REST Security SMB TCP/IP Unity VMware Windows GameDev Support RHEL Ubuntu Veeam More: We are HTC Global Services, where employees collaborate with experts and clients in high-performing teams. This senior, on-site role focuses on upgrading and optimizing critical infrastructure, including enterprise storage, Linux and Windows systems, data migration, and a new Hyper-V environment; it also partners closely with Bioinformatics teams that rely on high-throughput file access. We offer long-term career and skills development opportunities in emerging technologies, along with benefits that may include medical, dental, and vision coverage, paid time off and holidays, 401(k) matching, life and disability insurance, professional development, wellness programs, and other perks. We are committed to an inclusive workplace free from discrimination and harassment, where people are treated with dignity and respect and diverse perspectives are valued. last updated 41 week of 2026