Linux Server Administrator

Required / Mandatory Knowledge/Skills:

• Install, configure, and harden Linux operating systems (Red Hat Enterprise Linux, CentOS, Ubuntu, SUSE)
  • Manage user accounts, groups, permissions, and SSH access in accordance with security policies
  • Perform patch management, kernel upgrades, and software installations using native package managers (YUM, APT, Zypper)
  • Monitor system performance, analyze logs, and troubleshoot issues related to CPU, memory, storage, and network
  • Design, implement, and test backup, recovery, and disaster-recovery procedures
  • Automate routine tasks and deployments with shell scripting (Bash), Python, or configuration-management tools (Ansible, Puppet, Chef)
  • Deploy and manage virtualization (KVM, VMware) and containerization platforms (Docker, Kubernetes)
  • Integrate Linux servers with directory services (LDAP, Active Directory) and identity-management solutions
  • Collaborate with network, storage, security, and application teams to support infrastructure projects and migrations
  • Maintain detailed documentation of configurations, change records, and operational runbooks
  • Participate in on-call rotations and respond to incidents in a 247 support model
  • Stay current with emerging Linux technologies, security best practices, and industry standards

Required Qualifications:
• 2+ years of hands-on Linux administration in a production environment
• Deep understanding of Linux file systems, kernel parameters, boot process, and services management
• Proficiency with networking concepts (TCP/IP, VLANs, routing, firewalls) and storage integration (iSCSI, NFS)
• Strong scripting skills in Bash and familiarity with Python or Perl
• Experience with configuration-management tools (Ansible, Puppet, or Chef)
• Solid experience with virtualization (KVM, VMware) and container orchestration (Docker, Kubernetes)
• Excellent troubleshooting, problem-solving, and incident-response abilities
• Strong written and verbal communication skills; able to convey technical concepts to non-technical stakeholders

Preferred Knowledge/Skills:

Red Hat Certified Engineer (RHCE), Linux Professional Institute Certification (LPIC), or equivalent
• Experience with public cloud platforms (AWS, Azure, Google Cloud) and hybrid-cloud architectures
• Familiarity with logging and monitoring stacks (ELK, Prometheus/Grafana, Nagios)
• Knowledge of security frameworks and compliance requirements (CIS Benchmarks, NIST, PCI DSS)
• Exposure to DevOps practices and CI/CD pipelines (Jenkins, GitLab CI, Terraform)

Following are some of the key tools that the candidate should have experience with -

• . Linux
• . Jira Data Center
• . Confluence Data Center
• . GitHub
• . PowerShell Universal
• . ServiceNow (Incident, Request, Change Management)