Unix System Administrator

Job Title: Unix System Administrator
Location:- Jacksonville, FL (Day1 Onsite)
Type- FTE

Job Summary: We are seeking a skilled Unix Administrator to install, configure, maintain, and support Unix/Linux server environments. The ideal candidate will be responsible for ensuring system availability, performance, security, and reliability while providing operational support for business-critical applications.
Key Responsibilities:
Install, configure, and maintain Linux/Unix operating systems (RHEL, CentOS, Ubuntu, SUSE, AIX, Solaris).
Perform server administration, patching, upgrades, and troubleshooting.
Monitor system performance, availability, and capacity planning.
Manage user accounts, permissions, file systems, and security policies.
Configure and maintain DNS, NFS, FTP, SSH, LDAP, and other infrastructure services.
Implement backup, recovery, and disaster recovery procedures.
Automate administrative tasks using Shell scripting (Bash, Korn Shell, Python).
Manage storage, LVM, RAID, and server virtualization platforms.
Troubleshoot hardware, OS, network, and application-related issues.
Support production, development, and testing environments.
Perform vulnerability remediation and security hardening.
Prepare system documentation, SOPs, and operational reports.
Work closely with application, database, network, and cloud teams.
Required Skills
Strong knowledge of Linux/Unix Administration.
Experience with RHEL, CentOS, Ubuntu, SUSE, AIX, or Solaris.
Hands-on experience in Shell scripting (Bash/KSH).
Knowledge of server performance tuning and troubleshooting.
Experience with backup tools and disaster recovery.
Familiarity with networking concepts (TCP/IP, DNS, DHCP, NTP).
Experience with monitoring tools such as Nagios, Zabbix, Splunk, Prometheus, or Grafana.
Knowledge of security hardening and compliance standards.
Experience with virtualization technologies (VMware, Hyper-V, KVM).
Basic understanding of cloud platforms (AWS, Azure, Google Cloud Platform).
Preferred Skills
Automation using Ansible, Puppet, Chef, or Terraform.
Knowledge of Docker and Kubernetes.
Experience with DevOps and CI/CD tools.
Linux certifications such as RHCSA, RHCE, or LPIC.
Education & Experience
Bachelor’s degree in computer science, Information Technology, or related field.
8+ years of experience in Unix and Linux Administration.
Relevant certifications are preferred.
Key Competencies
Strong troubleshooting and analytical skills.
Excellent communication and teamwork.
Ability to work in a 24x7 support environment.
Ability to handle critical incidents and escalations.
Keywords: Linux Administration, Unix Administration, RHEL, CentOS, Ubuntu, AIX, Solaris, Shell Scripting, Ansible, VMware, AWS, Azure, Troubleshooting, Monitoring, Security, Automation.
Design, test and certify patching solutions, patch catalogues and platform enhancements.
Support OS patch engineering, patch tooling integration and automation capabilities across infrastructure platforms.
Validate, test and release patches to meet production, compliance and operational requirements.
ITIL process, incident Management, change Management.