Red Hat Enterprise Linux (RHEL) Systems Administrator Job at Robert Half (Washington)

Linux Red Hat Expert

Inetum is hiring a Linux Red Hat Expert to provide advanced support, automation,...

Location

Portugal , Lisbon

Salary:

Not provided

Inetum

Expiration Date

Until further notice

Requirements

Minimum of 5 years of experience in Red Hat Linux administration
Bachelor’s degree in Computer Science or equivalent
Expert-level proficiency in RHEL system administration, both virtual and physical
Hands-on experience in patch and lifecycle management using Red Hat Satellite
Strong skills in access control, SUDO, Kerberos, LDAP, and SSSD
Proficient in automation and scripting with Ansible, Shell, and Python
Proven ability to resolve complex issues and lead root cause investigations
Strong communication skills to work effectively with cross-functional teams
Fluent in English (B2–C1 level)

Job Responsibility

Provide L3 support and resolve complex incidents in Red Hat Enterprise Linux (RHEL) across VMware, bare-metal, and IBM Power (LE) systems
Administer and troubleshoot RHEL platforms, ensuring performance, stability, and reliability
Manage Red Hat Satellite Server for patching, provisioning, and subscription lifecycle
Operate and secure Red Hat Identity Management (IdM) for centralized authentication and host-based access control
Conduct performance tuning, log analysis, and implement system optimizations
Maintain and engineer SUDO authorizations and access control policies
Perform root cause analysis and implement corrective and preventive actions
Collaborate with security teams to integrate RHEL systems with Active Directory and IdM
Build and maintain Ansible playbooks for automated patching, provisioning, and configuration management
Plan and execute kernel upgrades, OS updates, and manage package lifecycles

Fulltime

Senior Linux Systems Administrator – Datacenter Infrastructure

The consultant will oversee a robust estate of over 2,500 Red Hat Enterprise Lin...

Location

United States , Somerset

Salary:

49.50 - 81.25 USD / Hour

ClearBridge Technology Group

Expiration Date

Until further notice

Requirements

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

Job Responsibility

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

What we offer

Excellent benefits and compensation packages
Additional compensation provided for bi-monthly Saturday production rollouts

Fulltime

Linux Systems Administrator

Barbaricum is seeking a Linux Systems Administrator to manage and maintain missi...

Location

United States , Fort Eustis

Salary:

Not provided

Barbaricum

Expiration Date

Until further notice

Requirements

Active DoD Top Secret/SCI clearance required
Experience with Red Hat Enterprise Linux (RHEL) or similar distributions
Proficiency in scripting languages such as Bash, Python, or Perl
Familiarity with security compliance, including DISA STIGs

Job Responsibility

Manage Linux-based systems, ensuring stability, security, and compliance
Perform software updates, system hardening, and patch management
Troubleshoot hardware and software issues in secure environments
Develop scripts to automate routine administrative tasks
Document system configurations and maintenance procedures

Tactical Integrator (Systems Administrator)

Knight Federal Solutions is seeking a Cyber Systems Engineer to support Tactical...

Location

United States , Newport, RI

Salary:

Not provided

Knight Federal Solutions

Expiration Date

Until further notice

Requirements

Bachelor’s degree with 2 years' experience or High School Diploma / Equivalent with 6 years' experience may be considered in lieu of degree
Demonstrated skills in Linux operating systems, preferably Red Hat Enterprise Linux RHEL or Community Enterprise Operating System (CentOS) distributions
Ability to identify operating system issues and produce patches to fix issues as required
Scripting skills (e.g., bash shell scripts)
Good communication skills
Computer System/Networking troubleshooting skills

Job Responsibility

Design, develop, install, and integrate submarine training systems
Install, configure, test, and maintain operating systems, system services, application software and system management tools for Linux and Windows based systems, both natively and within virtual machines
Monitor and test application performance to identify issues with installation and performance and to identify possible solutions and work with developers to implement fixes
Troubleshoot Information Technology (IT) Systems to diagnose and suggest/implement potential solutions
Support physical hardware installation of IT computing equipment and cabling at both local and remote sites

Fulltime

SC cleared Red Hat OpenStack Engineer

This role focuses on designing, deploying, troubleshooting a secure grade privat...

Location

United Kingdom , London

Salary:

Not provided

Salt

Expiration Date

Until further notice

Requirements

Expert-level Red Hat Enterprise Linux (RHEL) administration, including networking, security, storage, and performance tuning
Deep knowledge of core services (Nova, Neutron, Cinder, Keystone, Glance, Swift)
Experience of Ansible for configuration management and orchestration, and scripting with Python or Go
Expertise in KVM (the hypervisor used by OpenStack) and related concepts
Hands-on experience with Red Hat Ceph Storage for OpenStack integration
Advanced networking skills (TCP/IP, VLANs, VXLANs, routing) and OpenStack Neutron configuration
Experience of RED HAT and WINDOWs integration. Including active directory

Job Responsibility

Architecture & Design: Leading the design and planning of highly available, scalable OpenStack cloud solutions
Deployment & Configuration: Installing and configuring the core OpenStack services (Nova, Neutron, Cinder, Glance, Keystone, etc.) often using Red Hat OpenStack Director (the installer/manager)
Automation: Automating cloud provisioning, configuration, and orchestration using tools like Ansible, Python, or Bash scripting
Integration: Integrating OpenStack with other critical services, especially Red Hat Ceph Storage for persistent storage and Red Hat Enterprise Linux (RHEL) as the underlying operating system
Delivery: Performing advanced troubleshooting, patching, upgrades, capacity planning, and performance tuning of the OpenStack environment
Container Integration: Increasingly, this role involves enabling container platforms like Red Hat OpenShift to run on top of the OpenStack virtual machines (VMs)

Red Hat OpenShift Engineer

Ivy Partners is a Swiss consulting firm that supports companies in their strateg...

Location

Portugal , Porto

Salary:

Not provided

IVY Partners

Expiration Date

Until further notice

Requirements

Over 5 years of experience in OpenShift administration
Extensive knowledge in system administration, design, and operation of OpenShift platforms
Experience with Red Hat Enterprise Linux (RHEL) and CI/CD tools
Experience in managing Storage Servers and SAN Switches
Knowledge of infrastructure services and networking topologies
Strong organizational, multi-tasking, and time-management skills
Excellent communication and interpersonal skills
Proficiency in English (both written and oral)
Quick learner, eager to learn and apply new concepts
Great team player

Job Responsibility

Manage, configure, upgrade, and troubleshoot Red Hat OpenShift infrastructure
Ensure high availability, performance, and security of our OpenShift environments to meet business needs
Apply security policies and compliance rules within the OpenShift infrastructure
Manage changes through automation platforms and interact with various teams to understand and implement business requirements, security policies, and network connectivity

What we offer

Supportive environment where everyone is valued
Training and career advancement opportunities both in Switzerland and internationally
Relationship based on transparency, professionalism, and commitment
Opportunity to combine technology and creativity to drive significant digital transformations
Positive impact through collective action

Fulltime

Unix System Integration Advisor

The Unix System Integration Advisor role requires a senior-level Linux engineer ...

Location

India , Bangalore

Salary:

Not provided

NTT DATA

Expiration Date

Until further notice

Requirements

Expert knowledge on RedHat Linux OS, Kernel, infrastructure and security
Expert knowledge in Linux Base Build, Kickstart, and BM / BMR Functions
SME RedHat / equivalent applications (AWX (Open Source) / Ansible Tower, Foreman (Open Source) / Satellite, RH Insights, Pacemaker, OpenShift Concepts)
Proficiency in RedHat patching and security
Can demonstrate proficiency in several SHELL scripting languages (ex., bash)
Can demonstrate proficiency in hands-on unassisted troubleshooting
Can demonstrate knowledge with RHEL OS history, development, and roadmap
Can demonstrate a working technical knowledge of several mid-range server models
Can demonstrate implement, support and maintain Open-Source software
Excellent communication skills, both verbal and written

Job Responsibility

Design, implement, and maintain scalable and secure Linux infrastructure across on-premises and hybrid environments, ensuring high availability, performance, and compliance
Function as the Linux platform owner, escalation point, and tech lead in cross-functional environment
Mentor and lead technical staff, drive documentation and knowledge sharing, and serve as the primary subject matter expert for Linux systems within the organization
Own Linux system lifecycle management, including patching, upgrades, monitoring, incident response, and remediation aligned with InfoSec and audit requirements
Document Infrastructure and Operations
Maintain up-to-date documentation for system configurations, operational procedures, deployment processes and architecture diagrams for internal teams
Plan and Execute Upgrades
Evaluate and implement OS, and software upgrades as per lifecycle requirements
Security Monitoring and Response
Apply patches, mitigate risks, and generate security compliance reports for InfoSec or audit teams

Fulltime

New