CrawlJobs Logo

Linux Red Hat Expert

https://www.inetum.com Logo

Inetum

Location Icon

Location:
Portugal , Lisbon

Category Icon

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

Not provided

Job Description:

Inetum is hiring a Linux Red Hat Expert to provide advanced support, automation, and lifecycle management for critical RHEL environments in virtualized and physical platforms.

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
  • Document system architecture, standards, procedures, and troubleshooting workflows

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)

Nice to have:

  • RHCE or Red Hat Certified Specialist in Satellite/IdM
  • Experience with container platforms such as OpenShift, Docker, or Kubernetes
  • Understanding of ITIL processes for incident and change management

Additional Information:

Job Posted:
July 17, 2025

Employment Type:
Fulltime
Job Link Share:

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Linux Red Hat Expert

Red Hat OpenStack Subject Matter Expert

We are seeking a highly skilled Red Hat OpenStack Subject Matter Expert to desig...
Location
Location
India , Bangalore
Salary
Salary:
Not provided
https://www.hpe.com/ Logo
Hewlett Packard Enterprise
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • In-depth knowledge of Red Hat OpenStack components and architecture
  • Strong Linux administration skills, especially Red Hat Enterprise Linux
  • Proficiency in virtualization technologies (KVM, VMware)
  • Scripting skills (Python, Bash) and familiarity with automation tools (Ansible, Puppet, Terraform)
  • Shell, PowerShell, Python, Golang, Repositories and code review tools
  • In-depth technical knowledge of the Cloud industry, private (OpenStack) and public cloud environments, virtualization, and cloud management
  • Enterprise virtualization (VMware, KVM), Container orchestration & Kubernetes distributions, VMware Tanzu, Other enterprise-grade Kubernetes engines
  • Good knowledge in network TCP/IP, IPv4, expertise in IPv6, VLAN, VXLAN, Bridging, routing, IP Tables, DNS, DHCP
  • Manage and monitor OpenStack and OpenShift to ensure high availability and performance
  • Troubleshoot and resolve OpenStack and OpenShift issues and optimize load for speed and reliability
Job Responsibility
Job Responsibility
  • Lead the architecture and design of Red Hat OpenStack environments to meet the organization’s technical and business needs
  • Collaborate with internal stakeholders to design scalable and reliable OpenStack infrastructure solutions
  • Create documentation and architecture diagrams for all proposed designs
  • Deploy, configure, and optimize Red Hat OpenStack clusters and associated components
  • Manage the setup and integration of OpenStack services, including Nova, Neutron, Cinder, Glance, Keystone, and Swift
  • Automate deployments and configurations using scripting languages (e.g., Python, Bash) or configuration management tools (e.g., Ansible, Puppet)
  • Ensure operational stability and efficiency of OpenStack environments by implementing monitoring and alerting solutions
  • Perform regular system updates, patches, and upgrades in line with best practices
  • Troubleshoot and resolve complex issues in OpenStack environments, leveraging deep knowledge of Linux and virtualization
  • Implement and manage security best practices, including access controls, identity management, and data encryption
What we offer
What we offer
  • Health & Wellbeing
  • Personal & Professional Development
  • Unconditional Inclusion
  • Fulltime
Read More
Arrow Right

SC cleared Red Hat OpenStack Engineer

This role focuses on designing, deploying, troubleshooting a secure grade privat...
Location
Location
United Kingdom , London
Salary
Salary:
Not provided
welovesalt.com Logo
Salt
Expiration Date
Until further notice
Flip Icon
Requirements
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
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)
Read More
Arrow Right

Unix System Integration Advisor

The Unix System Integration Advisor role requires a senior-level Linux engineer ...
Location
Location
India , Bangalore
Salary
Salary:
Not provided
nttdata.com Logo
NTT DATA
Expiration Date
Until further notice
Flip Icon
Requirements
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
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
Read More
Arrow Right

Openshift Subject Matter Expert

Openshift Subject Matter Expert. This role has been designed as ‘Hybrid’ with an...
Location
Location
India , Bangalore
Salary
Salary:
Not provided
https://www.hpe.com/ Logo
Hewlett Packard Enterprise
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • In-depth knowledge of Red Hat OpenStack components and architecture
  • Strong Linux administration skills, especially Red Hat Enterprise Linux
  • Proficiency in virtualization technologies (KVM, VMware)
  • Scripting skills (Python, Bash) and familiarity with automation tools (Ansible, Puppet, Terraform)
  • In-depth technical knowledge of the Cloud industry, private (OpenStack) and public cloud environments, virtualization, and cloud management
  • Good knowledge in network TCP/IP, IPv4, expertise in IPv6, VLAN,VXLAN, Bridging, routing, IP Tables, DNS, DHCP
  • Hands-on exp. in K8s services, load balancing & networking modules
  • Proficient in security, firewall, storage concepts
  • Experience with networking, storage, and security as it relates to OpenStack
  • Excellent problem-solving abilities and troubleshooting skills
Job Responsibility
Job Responsibility
  • Lead the architecture and design of Red Hat OpenStack environments
  • Collaborate with internal stakeholders to design scalable and reliable OpenStack infrastructure solutions
  • Create documentation and architecture diagrams
  • Deploy, configure, and optimize Red Hat OpenStack clusters and associated components
  • Manage the setup and integration of OpenStack services
  • Automate deployments and configurations
  • Ensure operational stability and efficiency of OpenStack environments by implementing monitoring and alerting solutions
  • Perform regular system updates, patches, and upgrades
  • Troubleshoot and resolve complex issues in OpenStack environments
  • Implement and manage security best practices
What we offer
What we offer
  • Health & Wellbeing
  • Personal & Professional Development
  • Unconditional Inclusion
  • Fulltime
Read More
Arrow Right

PostgreSQL Database Administrator

The primary role of the Database Administrator is managing Database management o...
Location
Location
Australia , Sydney
Salary
Salary:
Not provided
darumatic.com Logo
Darumatic
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Expert Postgres Enterprise and/or Community knowledge
  • Red Hat Cluster experience, preferred in use of Postgres Databases
  • Extensive experience implementing and supporting streaming replication between different sites
  • Strong implementation and support experience of SQL and Postgres (e.g .PGPool, PGBouncer, PEM, DRITA, Failover Manager, Data Adapters, Replication Server, Migration Toolkit)
  • Must have a strong understanding of the architectural and operational complexities of solutions deployed within a Postgres and MS-SQL environments
  • RAC,rman,ASM,DG broker,Performance analysis
  • High level Linux administration skills
  • Experience with OEM
  • Engineered systems experience (Exadata and ODA)
  • PostgresSQL (locted on RHEL)
Job Responsibility
Job Responsibility
  • Responsible for ensuring availability and performance of the Clearing database environment
  • Manage non-production, production and disaster recovery database environments
  • Works closely with support team colleagues to ensure that the associated hardware resources for the database environment are configured for optimum performance and availability
  • Proactively monitors database environment to ensure minimum downtime
  • Provides regular trend analysis to track database performance and throughput, for capacity planning purposes
  • Responsible for enhancements, maintenance and upgrades to the database environment
  • Works with business, architecture, development and technical colleagues to manage and implement changes
  • Carries out analysis of potential hardware problems prior to contacting third-party support
  • Ensures all system and application changes are approved via the appropriate Change Control methods
  • Develop and maintain runbooks for High Availability and Disaster Recovery tests and is responsible for planning and running these tests
Read More
Arrow Right

Info Security Tech Sr Analyst

Authentication Platforms Level 3 (L3) Operation Support team is responsible for ...
Location
Location
India , Chennai
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 8+ Years in support business and work with System administrators, developers, and analysts with troubleshooting issues
  • 3-5 years of relevant industry experience in one or more of the following: Enterprise Single Sign On (SSO), Authentication and Authorization Products
  • Identity and Access Management tools and processes
  • Strong ability to utilize Unix and Linux systems like Red hat Enterprise Linux 8.x/7.x/ 6.x.
  • Supporting complex, multi-tier, distributed systems - Webservers, App Servers, Network topologies (Demilitarized Zone, Firewall rules etc.) required to support applications utilizing the authentication infrastructure
Job Responsibility
Job Responsibility
  • Perform change management and incident management utilizing documented procedures through Service Now (SN) or similar change management tools
  • Support service recovery procedures
  • Be the point of contact for the Level 2 Team escalation
  • Participate in Problem Management processes to identify solutions for recurring problems
  • Document problem resolutions and publish knowledgebase
  • Work with vendor support, System administrators / architects on a regular basis and track issues to closure as a Subject Matter Expert
  • Support maintenance and migrations on the SSO infrastructure
  • Fulltime
Read More
Arrow Right

Lead Mantas Engineer

The Mantas Lead Engineer is accountable for developing high quality Mantas Scena...
Location
Location
India , Pune
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 9 to 11 years’ experience implementing data-intensive solutions using agile methodologies
  • Experience of relational databases and using SQL for data querying, transformation and manipulation
  • Experience of modelling data for analytical consumers
  • Expert in Oracle Mantas/FCCM, Scenario Manager, Scenario Development
  • Strong in Oracle Database, PL/SQL and performance tuning
  • Experience with Red Hat Linux and UNIX Bash Shell Scripting
  • Thorough knowledge and hands on experience in Mantas FSDM, DIS, Batch Scenario Manager
  • Knowledge of Build and Deployment tools like Bit Bucket, Jenkins, RLM, Service Now
  • Good to have knowledge on Python and Big Data Stack
  • A passion for learning new technologies, and a desire for personal growth, through self-study, formal classes, or on-the-job training
Job Responsibility
Job Responsibility
  • Own development projects end to end, working with team and stakeholders to deliver quality products per stringent timelines
  • Design and develop Mantas Scenarios and implement
  • Hands on Mantas expert throughout the full development life cycle, including: requirements analysis, functional design, technical design, programming, testing, documentation, implementation, and on-going technical support
  • Analyse specifications and perform program/database design activities
  • Translate business needs (BRD) into effective technical solutions and documents (FRD/TSD)
  • Utilize Mantas Data Miner tools and any other necessary tools necessary for performing daily maintenance and project implementation for the Mantas AML program
  • Nurture talent and contribute towards knowledge development of team
  • Ability and willingness to learn newer tools used for build and deployments and contribute in SIT/UAT deployments as well
  • Fulltime
Read More
Arrow Right

Modeling and Simulation Software Engineer

The DCS Air & Space Technology (AST) Sector is seeking a Modeling and Simulation...
Location
Location
United States , Dayton
Salary
Salary:
Not provided
dcscorp.com Logo
DCS Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • U.S. Citizenship is required
  • Bachelor of Science degree or higher in related engineering or science discipline
  • Must be able to obtain and maintain a DOD Secret clearance
  • 2–10 years (Journeyman) or 10+ years (Senior) professional software development experience
  • Using and developing in the Joint Simulation Environment (JSE)
  • Hands-on with DevSecOps practices and toolchains (CI/CD, automated testing, git, Visual Studio, container tooling)
  • Experience with containers and orchestration: Docker, podman, helm charts, Kubernetes/Openshift
  • Familiarity with Windows and Red Hat Linux environments and VMware administration
  • Experience integrating modeling & simulation software into larger systems preferred
  • Strong test planning, V&V and documentation skills
Job Responsibility
Job Responsibility
  • Design, develop, sustain, and integrate software in a government DevSecOps environment on government-owned systems in support of modeling & simulation and operational/experimental systems
  • Participate in Agile ceremonies, sprint planning, backlog grooming, and triage
  • assist government teams with workload prioritization
  • Perform software integration and installation at government facilities (may require travel)
  • Produce software test plans, execute V&V and lifecycle testing, and generate test reports of the applications developed
  • Support R&D activities to integrate advanced models, simulations, and hardware into legacy and new platforms (JSE, VATS, F‑16 examples)
  • Fulltime
Read More
Arrow Right