Our client, a professional services firm located in Somerset, NJ, is looking to hire a Senior Linux Systems Administrator - Datacenter Infrastructure for a 6-month hybrid contract. The consultant will be expected to work onsite in the Somerset office 2 days per week, on Tuesdays and Thursdays.
The schedule is as follows:
Standard Hours:
- Monday - Wednesday: 7:00 am - 3:30 pm EST
- Thursday - Friday: 10:30 am - 7 pm EST
Weekend Availability:
- Participation in bi-monthly Saturday production rollouts (remote or onsite; additional compensation provided).
- On-call rotation one week per month, covering:
- Weekdays: 19:00 - 07:00
- Weekends: Full coverage, including Sunday morning triage.
The consultant will oversee a robust estate of over 2,500 Red Hat Enterprise Linux (RHEL) systems deployed on HPE ProLiant hardware, supporting high-performance environments in multiple datacenters. The client is embarking on transformative infrastructure initiatives.
Key Responsibilities:
- Lead advanced administration, configuration, and performance optimization of Red Hat Enterprise Linux (RHEL) systems.
- Design and manage RHEL KVM virtualization environments, including provisioning, troubleshooting boot issues, and fine-tuning for optimal performance.
- Oversee lifecycle management of HPE ProLiant hardware, including upgrade analysis, firmware upgrades, component replacements, and remote diagnostics via iLO.
- Design and execute robust processes for infrastructure patching, reboot orchestration, and content lifecycle management.
- Administer and enhance security posture through deployment and maintenance of EDR and SIEM agents, ensuring compliance with CVE remediation SLAs.
- Analyze and resolve kernel-level system bottlenecks and network latency, delivering actionable performance tuning strategies.
- Manage HPE storage platforms (Primera, Alletra), including SAN zoning, volume provisioning, LVM configuration, and fiber channel switch operations.
- Maintain critical datacenter services: NTP/Chrony, Elastic Stack, Puppet, Cobbler, Rundeck, Squid Proxy, DNS, and Postfix.
- Implement proactive monitoring using tools such as Nagios/Naemon, Prometheus, and PRTG, ensuring high availability and rapid incident response.
- Develop and maintain automation frameworks using Ansible, Python, Perl, and shell scripting to streamline operational workflows.
- Respond to service requests and incident tickets with precision, adhering to rigorous change management and production protocols.
- Provide detailed procedural documentation and remote guidance for external datacenter teams across geographically distributed locations.
Required Skills:
- Minimum 10 years of hands-on experience in enterprise-level Linux system administration and technical operations
- Prior experience in financial services
- Proven expertise in RHEL 7/8, including deep familiarity with KVM virtualization and system internals.
- Advanced knowledge of HPE ProLiant server architecture, diagnostics, and lifecycle management.
- Demonstrated proficiency in security operations, including EDR/SIEM agent management and vulnerability remediation.
- Experience with HPE SAN technologies, including fabric zoning, Primera/Alletra storage systems, and fiber channel networking.
- Working knowledge of Puppet and Cobbler for configuration and provisioning automation.
- Proficient in scripting languages: Python, Perl, and Bash; capable of developing scalable automation solutions.
ClearBridge Technology Group is an Equal Opportunity Employer.
We offer excellent benefits and compensation packages.
The expected hourly rate range for this role is: $49.50 - $81.25 per hour
The posted range is an estimate, the actual compensation offer will be based on the candidate's experience, skills, qualifications and will be in line with internal equity.
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