Linux System Administrator

Linux System Administrator

Posted 2 weeks ago by Thebes Group

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Negotiable
Undetermined
Onsite
London Area, United Kingdom
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Ansible Automation Bash (Scripting Language) Enterprise Application Software Hardening Linux Management Oracle Database Administration (DBA) Oracle Databases Oracle Linux Patch Management Performance Tuning Python (Programming Language) Red Hat Enterprise Linux Root Cause Analysis Scripting Solaris (Operating System) Stakeholder Management Virtualisation VMware Certified Associate VMware Virtualisation

Summary: We are seeking an experienced Linux System Administrator to support the migration of a key enterprise application from Solaris to Red Hat Enterprise Linux (RHEL). The role requires extensive experience in Unix-to-Linux migrations, Oracle database environments, and strong troubleshooting and automation skills. The ideal candidate will collaborate with cross-functional teams to ensure a seamless transition and maintain system performance and security. This position is critical for the successful execution of the migration project over a 6-month duration.

Key Responsibilities:

  • Lead and support the migration of enterprise applications from Solaris to Red Hat Enterprise Linux (RHEL).
  • Collaborate with the DBA team to support the Oracle database migration during the platform transition.
  • Plan, configure, and maintain RHEL servers in physical and virtualized environments (e.g., VMware).
  • Develop and maintain infrastructure-as-code and automation scripts using tools such as Ansible, Shell scripting, or Python.
  • Ensure system security, availability, and performance by applying patches, monitoring systems, and conducting regular audits.
  • Work with application owners, developers, and other infrastructure teams to ensure a seamless migration.
  • Perform root cause analysis on system failures and implement long-term fixes.
  • Maintain documentation for system configurations, processes, and standard operating procedures.

Key Skills:

  • 9+ years of experience as a Linux System Administrator (preferably in enterprise environments).
  • Proven experience with Unix-to-Linux migration projects.
  • Strong knowledge of Red Hat Enterprise Linux (RHEL) administration.
  • Experience with Oracle database environments in Linux.
  • Proficiency in automation tools such as Ansible and scripting languages (Shell, Bash, Python).
  • Solid understanding of VMware virtualization technologies.
  • Expertise in system performance tuning, security hardening, and patch management.
  • Strong troubleshooting and root cause analysis skills.
  • Ability to work collaboratively with cross-functional teams during large-scale migrations.

Salary (Rate): undetermined

City: London

Country: United Kingdom

Working Arrangements: on-site

IR35 Status: undetermined

Seniority Level: undetermined

Industry: IT

Detailed Description From Employer:

Role: Linux Systems Administrator

Location: London – 5 days on-site

Duration : 6 months

Key Essential Skills:

  • 9+ years of experience as a Linux System Administrator (preferably in enterprise environments).
  • Proven experience with Unix-to-Linux migration projects.
  • Strong knowledge of Red Hat Enterprise Linux (RHEL) administration.
  • Experience with Oracle database environments in Linux.
  • Proficiency in automation tools such as Ansible and scripting languages (Shell, Bash, Python).
  • Solid understanding of VMware virtualization technologies.
  • Expertise in system performance tuning, security hardening, and patch management.
  • Strong troubleshooting and root cause analysis skills.
  • Ability to work collaboratively with cross-functional teams during large-scale migrations.

Desirable Skills:

  • Experience with Solaris administration prior to migration.
  • Strong communication skills for effectively explaining technical concepts to non-technical stakeholders.
  • Collaboration and teamwork mindset, especially in cross-functional environments.
  • Adaptability to work in dynamic, fast-changing migration projects.
  • Analytical thinking for diagnosing complex issues and anticipating potential migration challenges.

Overview:

We are seeking an experienced Linux System Administrator to join our Infrastructure team. This role is critical in supporting the migration of a key enterprise application from Solaris to Red Hat Enterprise Linux (RHEL), including the associated Oracle database migration. The ideal candidate will have hands-on experience with Unix-to-Linux migrations, Oracle database environments, and strong troubleshooting and automation skills.

Role & Responsibilities:

  • Lead and support the migration of enterprise applications from Solaris to Red Hat Enterprise Linux (RHEL).
  • Collaborate with the DBA team to support the Oracle database migration during the platform transition.
  • Plan, configure, and maintain RHEL servers in physical and virtualized environments (e.g., VMware).
  • Develop and maintain infrastructure-as-code and automation scripts using tools such as Ansible, Shell scripting, or Python.
  • Ensure system security, availability, and performance by applying patches, monitoring systems, and conducting regular audits.
  • Work with application owners, developers, and other infrastructure teams to ensure a seamless migration.
  • Perform root cause analysis on system failures and implement long-term fixes.
  • Maintain documentation for system configurations, processes, and standard operating procedures.
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