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ION · 1 day ago

Senior Linux Systems Administrator - Datacenter Infrastructure

Somerset, NJ

Full-time

Onsite

Senior Level, Lead/Staff

10+ years exp

ION Markets is seeking an accomplished and driven Senior Linux Systems Administrator to join our Datacenter Systems Administrative Team. This role offers a compelling opportunity to contribute to mission-critical infrastructure across North and South America by overseeing a robust estate of over 2,500 Red Hat Enterprise Linux systems and managing transformative infrastructure initiatives.

AccountingAsset ManagementFinanceFinancial ServicesSoftware

H1B Sponsor Likely

Responsibilities

Lead advanced administration, configuration, and performance optimization of Red Hat Enterprise Linux (RHEL) systems

Architect 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

Qualification

RHEL 7/8KVM virtualizationHPE ProLiantEDR/SIEM managementHPE SAN technologiesPuppetCobblerPythonPerlBashNetworking fundamentalsRHCSA/RHCE certificationCommunication skillsProblem-solving skillsMentoring skills

Required

Minimum 10 years of hands-on experience in enterprise-level Linux system administration and technical operations; prior experience in financial services is highly advantageous

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

Solid understanding of networking fundamentals, including VLANs, trunking, routing, multicast, and NAT

Exceptional communication and collaboration skills across cross-functional teams and remote support personnel

Strategic problem-solving acumen with a focus on reliability, scalability, and performance in high-availability environments

Ability to lead and mentor junior engineers, fostering a culture of continuous improvement and technical excellence

Preferred

Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) certification preferred

Company

ION

Glassdoor3.3

ION Group provides solutions for electronic trading, position management, pricing, risk management, and downstream processing for clients.

Founded in 1998

New York, New York, USA

10001+ employees

https://iongroup.com

H1B Sponsorship

ION has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

Represents job field similar to this job

Trends of Total Sponsorships

2025 (2)

2024 (1)

2022 (2)

2021 (4)