Linux / Unix Systems Expert – Obsolescence

Jobtailor; Île-de-France; Sur place; EUR 60 000 - 90 000; Plein temps

Résumé du poste

Jobtailor in Île-de-France seeks a seasoned Linux/Unix Infrastructure Specialist to lead obsolescence management projects across production environments, from analysis to action plans. You will test, script, validate procedures, and document operations for teams worldwide.

You will drive migration strategies, optimize hardware costs, and advance security and lifecycle practices, including RHEL, HP-UX, Solaris, and automation with Ansible, Satellite, and related tools.

Qualifications

• Degree in IT, systems and networks or equivalent field is required.
• Significant experience in Linux/Unix administration in complex production environments.
• Hands-on experience with obsolescence management, migration or decommissioning.
• Expertise in Linux system administration, especially RHEL (7, 8, 9).
• Knowledge of HP-UX and Solaris environments.

Responsabilités

• Lead and contribute to infrastructure obsolescence management projects for Linux and Unix environments.
• Test, script, and validate technical action plans, then document procedures for operations teams.
• Help steer obsolescence initiatives through tracking indicators and prioritization.
• Propose migration, virtualization, and replacement strategies for obsolete infrastructure.
• Define target hardware architectures and contribute to cost optimization, especially licensing costs.
• Evolve security processes and update OS images, agents, and server components.
• Assess and implement in-place OS migrations, particularly Red Hat environments.
• Monitor decommissioning plans for Solaris and HP-UX environments.
• Maintain compatibility matrices and monitor life cycles of Linux/Unix systems.
• Participate in capacity management for Compute and virtualization environments.
• Provide technical assistance to international and local IT teams.
• Prepare technical recommendations and roadmaps for project and operations teams.

Connaissances

Linux administration

Unix administration

Bash scripting

Python programming

Red Hat Satellite

Ansible automation

OS deployment

Patch management

System life-cycle management

Infrastructure migration

Capacity management

Technical documentation

Veritas Cluster

Centrify

Avamar

Formation

Higher education degree in IT, systems and networks

Outils

Red Hat Satellite

Ansible

Veritas Cluster

Centrify

Avamar

Description du poste

• Lead and contribute to infrastructure obsolescence management projects for Linux and Unix environments, from analysis through implementation of action plans
• Test, script, and validate technical action plans, then document the corresponding procedures for operations teams
• Help steer obsolescence initiatives through tracking indicators and contribute to their prioritization
• Propose migration, virtualization, and replacement strategies for obsolete infrastructure
• Define target hardware architectures and contribute to cost optimization, particularly with regard to licensing costs
• Contribute to the evolution of security processes and the updating of OS images, agents, and server components
• Assess and implement in-place OS migrations, particularly in Red\u00A0Hat environments
• Monitor decommissioning plans for Solaris and HP-UX environments
• Maintain compatibility matrices and monitor the life cycles and evolution of Linux and Unix systems
• Participate in capacity management for Compute and virtualization environments
• Provide technical assistance and support to international and local IT teams
• Prepare technical recommendations and roadmaps for project and operations teams

Requirements

• Higher education degree in IT, systems and networks, or an equivalent field
• Significant experience in Linux / Unix administration and expertise in complex production environments
• Hands‑on experience with infrastructure obsolescence management, migration, or decommissioning
• Expertise in Linux system administration, particularly Red Hat Enterprise Linux (RHEL 7, 8, and 9)
• Strong knowledge of Unix environments, particularly HP-UX and Solaris
• Proficiency in Bash scripting and good knowledge of Python
• Knowledge of Red Hat Satellite for patch management
• Knowledge of Ansible and automation practices
• Good understanding of system life-cycle management, obsolescence, migration, and decommissioning
• Knowledge of Linux OS deployment and updating
• Fluent professional English is essential
• Ability to work in an international environment and collaborate with remote technical teams
• Occasional availability for on‑call duties or work outside standard business hours
• Knowledge of Veritas Cluster, Centrify, or Avamar environments is a plus
• Experience in international and/or banking environments is a plus

Core Competencies

Demonstrates expertise in Linux and Unix administration, particularly in Red Hat environments, with a strong focus on infrastructure obsolescence management, migration strategies, and system life-cycle management. Proficient in scripting and automation practices to enhance operational efficiency and support international IT teams.

Highest‑signal resume keywords

• Linux System Administration
• Red Hat Enterprise Linux (RHEL 7, 8, 9)
• Bash Scripting
• Infrastructure Obsolescence Management
• Ansible Automation

ATS Optimization Keywords

Hard Skills

• Linux Administration
• Unix Administration
• Infrastructure Migration
• Decommissioning
• System Life-Cycle Management
• OS Deployment
• Patch Management
• Python Programming
• Technical Documentation
• Capacity Management

Soft Skills

• Collaboration
• Technical Assistance
• Communication
• Problem‑Solving
• Adaptability

Industry Keywords

• International IT Environment
• Banking Environments
• Obsolescence Management
• Virtualization Strategies
• Security Processes

Tools & Technologies

• Red Hat Satellite
• Ansible
• Veritas Cluster
• Centrify
• Avamar