Linux Systems Engineer

The Clearing House Payments Company L.L.C.; United States; On-site; USD 120,000 - 170,000; Full time

Job summary

The Clearing House Payments Company L.L.C. is seeking a Linux Systems Engineer to design, engineer, and support large-scale Red Hat Enterprise Linux infrastructure in a 24x7 enterprise environment.

The role emphasizes hands-on RHEL work across on-premises virtualization and AWS cloud contexts, with a focus on security hardening, patch management, and reliable operations. Ideal candidates will have extensive RHEL experience, strong troubleshooting skills, and the ability to collaborate with

Qualifications

• Bachelor's degree or equivalent professional experience in a related field.
• Extensive hands-on RHEL administration in large enterprise environments.
• Cloud fundamentals and enterprise cloud design patterns are required.
• Experience with RHEL 8.x/9.x on x86_64, VMware, and AWSis preferred.

Responsibilities

• Design, engineer, implement, and support enterprise RHEL server platforms across physical, virtual, and cloud environments.
• Establish and maintain engineering standards, including build processes, baselines, hardening, and lifecycle requirements.
• Collaborate with Security and Architecture teams to implement RHEL security baselines and patches.
• Integrate RHEL servers with monitoring, security, backup, logging, and config management tools.
• Validate patches and OS updates in alignment with change management and remediation requirements.
• Evaluate upgrades and components before production deployment.
• Implement Linux security configurations to meet PCI DSS/ISO or equivalent controls.
• Partner with Operations, Architecture, Security, and other teams to design future-state Linux platforms.
• Participate in on-call rotations and after-hours support for incidents and maintenance.
• Document configurations and procedures for governance and audits.

Skills

RHEL expertise

Troubleshooting

On-call

Documentation

Security hardening

Education

Bachelor's degree in CS/IT/ENG or related field

Tools

VMware

Dell PPDM

AWS

Job description

Position summary:

Linux Systems Engineer responsible for engineering, building, supporting, securing, and maintaining large-scale Red Hat Enterprise Linux (RHEL) server infrastructure in a highly available, 24x7 enterprise production environment. This role requires extensive hands-on RHEL experience, strong troubleshooting skills, and the ability to support complex distributed infrastructure across on-premises virtualization and AWS cloud environments.

Essential Functions and Responsibilities:

• Design, engineer, implement, and support enterprise Red Hat Enterprise Linux server platforms across physical, virtual, and cloud environments.
• Establish, implement, and maintain enterprise Linux engineering standards, including server build processes, configuration baselines, hardening standards, supported package levels, firmware, drivers, and lifecycle requirements.
• Collaborate with Information Security and Architecture teams to implement, validate, and maintain RHEL security hardening standards and configuration baselines.
• Integrate RHEL servers with enterprise infrastructure management and security platforms, including monitoring, endpoint security/anti-malware, file integrity monitoring, vulnerability management, backup, logging, and configuration management tools.
• Validate, test, deploy, and troubleshoot RHEL security patches and operating system updates in accordance with enterprise patching, change management, and vulnerability remediation requirements.
• Evaluate and test upgrades to operating systems, packages, drivers, firmware, microcode, and other server components before production implementation.
• Implement and validate Linux security configurations to meet enterprise security, regulatory, and audit requirements. Experience supporting environments governed by standards such as PCI DSS, ISO, or comparable control frameworks is preferred.
• Partner with Operations, Architecture, Security, application teams, and other infrastructure teams to maintain the current environment and design future-state Linux platforms and services.
• Participate in scheduled on-call coverage and provide after-hours support for production incidents, maintenance, upgrades, and critical infrastructure activities.

Qualifications Required:

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent relevant professional experience.
• Extensive hands-on experience administering Red Hat Enterprise Linux in a large enterprise environment, including installation, configuration, upgrades, lifecycle management, troubleshooting, performance analysis, and production support.
• Strong understanding of cloud fundamentals, infrastructure provisioning, and enterprise cloud design patterns.
• Extensive experience with RHEL 8.x and 9.x on x86_64 platforms, including RHEL workloads hosted on VMware and AWS.
• Strong working knowledge of enterprise infrastructure dependencies, including SAN storage (Dell/EMC), TCP/IP networking, DNS, LDAP, Active Directory integration, and firewalls.
• Working knowledge of enterprise backup and recovery technologies, including Dell PowerProtect Data Manager (PPDM).
• Experience provisioning, configuring, and supporting Linux virtual machines in VMware environments.
• Working knowledge of Linux authentication and identity integration with LDAP and Active Directory, as well as enterprise DNS services.
• Excellent verbal and written communication skills, including the ability to create clear technical documentation and communicate effectively with technical and non-technical stakeholders.
• Ability to participate in a 24x7 on-call rotation and perform planned maintenance or incident response during nights, weekends, and other off-hours as required.
• Demonstrated ability to work professionally and collaboratively with infrastructure, application, security, architecture, operations, and other enterprise technology teams.

Qualifications Desired:

• Experience supporting enterprise Linux workloads across VMware virtualization and AWS cloud environments.
• Experience with VMware infrastructure concepts, including virtual networking, VLANs, compute, storage, and virtual machine lifecycle management.
• Demonstrated ability to analyze and resolve complex infrastructure and operating system issues using structured troubleshooting and root-cause analysis.
• Experience with AWS services and cloud-based Linux infrastructure is preferred.
• Experience with Linux automation and scripting, such as Bash, Python, Ansible, or comparable tools.
• Experience with enterprise monitoring, performance management, vulnerability management, configuration management, and security tooling.

Physical Demands and Work Environment:

The working environment is generally favorable. Lighting and temperature are adequate, and there are no hazardous or unpleasant conditions caused by noise, dust, etc. Work is generally performed within an office environment, with standard office equipment available. Travel may be required. Candidates wi