Linux Administrator

AtLognextwe have been accompanying companies and teams for more than 18 years to identify and implement the technology necessary to advance, making their challenges and objectives our own and getting closer to their reality.Therefore, being aNEXTERmeans that your career and talent become meaningful to you and those around you, allowing you to build what matters most to you and reach your next level.We are looking for a talentedUnix Administratorto join our team for a multinational leader in the banking sector located in Madrid.This role is responsible for theadministration of Unix-based servers,primarily RHEL, Ubuntu and Debian.Our environment spans alarge, hybrid infrastructure of physical and virtual serversthat supports mission-critical applications and continuous production workloads.Key responsibilities:Ensure production stability- monitor, tune and troubleshoot the server park so that all services meet theirSLA deadlinesand remain available for end-user operations.Drive process-automation- design, script and implement automated workflows (e.g., provisioning, configuration management, patching, and compliance checks) that reduce manual effort, accelerate delivery, and improve repeatability across the whole fleet.Maintain high-availability architectures- deploy, configure and support HA solutions (clustering, load-balancing, fail-over) to guarantee uninterrupted production services.Security & compliance- perform hardening, vulnerability remediation, and patch management in a timely,deadline-orientedmanner, ensuring that security controls never become a bottleneck for production.Adaptability & continuous learning- stay current with emerging tools (Ansible, Python, CI/CD, etc.) and be ready to pivot when production requirements evolve or new technologies are introducedWhat we look forProven expertise with Unix/Linux (RHEL, Ubuntu & Debian)..Strong background inhigh-availabilitytechnologies andprocess-automationframeworks.Excellent communication and planning skills - you can translate technical details into clear actions for both technical and non-technical audiences.A proactive mindset eager to learn, improve, and automate every repetitive task that touches the production line.Skills:Essential:Advanced administration & troubleshootingon RHEL, Ubuntu & Debian in large-scale environments ( >****** servers).Automation & scripting- proven expertise withAnsibleto build repeatable playbooks for provisioning, configuration, compliance and patching.Server-side networking- VLANs, bonding, TCP/IP tuning, firewall rules, etc.High-availability clustering- hands-on experience withVeritas Infoscale FoundationandOpenSVC.Additional automation platformslikePuppet(or similar).Desirable:Identity & access knowledge- Active Directory, Centrify.Enterprise patch-management tools- Satellite, Landscape.CI/CD ecosystem familiarity- Jira, Bitbucket, GitLab, Jenkins, etc.Job Conditions & Benefits:Permanent contract.Work Mode: Hybrid, 4 days onsite/ per month (Madrid)Competitive salary.Professional Development: Access to an annual budget dedicated to advancing your skills through professional certifications.Join our expert team, where creativity, commitment and the ability to bring new perspectives are essential to make a difference in a world full of opportunities.

Strong background inhigh-availabilitytechnologies andprocess-automationframeworks. Excellent communication and planning skills - you can translate technical details into clear actions for both technical and non-technical audiences. A proactive mindset eager to learn, improve, and automate every repetitive task that touches the production line. Skills: Essential: Advanced administration & troubleshootingon RHEL, Ubuntu & Debian in large-scale environments ( >****** servers). Automation & scripting- proven expertise withAnsibleto build repeatable playbooks for provisioning, configuration, compliance and patching. Server-side networking- VLANs, bonding, TCP/IP tuning, firewall rules, etc. High-availability clustering- hands-on experience withVeritas Infoscale FoundationandOpenSVC. Additional automation platformslikePuppet(or similar). Desirable: Identity & access knowledge- Active Directory, Centrify. Enterprise patch-management tools- Satellite, Landscape. CI/CD ecosystem familiarity- Jira, Bitbucket, GitLab, Jenkins, etc.

Permanent contract. Work Mode: Hybrid, 4 days onsite/ per month (Madrid) Competitive salary. Professional Development: Access to an annual budget dedicated to advancing your skills through professional certifications. Join our expert team, where creativity, commitment and the ability to bring new perspectives are essential to make a difference in a world full of opportunities.