Linux System Administrator
5 hours ago
Job Summary
CIS Secure Computing is seeking a highly skilled Linux System Administrator to join our team. As a Linux System Administrator, you will be responsible for providing Red Hat Enterprise Linux (RHEL) and Linux system administration support to our clients.
Responsibilities
- Provide Linux system administration and maintain Linux server builds.
- Utilize ticketing systems such as Atlassian Jira, Atlassian Jira Service Desk, Atlassian Confluence, ServiceNow and Microsoft Service Manager.
- Administer BIND DNS, FTP, and NTP as required.
- Configure directory service parameters.
- Maintain and update custom authentication services (SAMBA, VAS).
- Manage group shares and home directories.
- Monitor system usage and perform system tuning.
- Coordinate with various stakeholders to analyze requirements and determine hardware and software needs for automated solutions.
- Implement system enhancements to boost performance and reliability, covering installation, patching, monitoring, and configuration management.
- Ensure data integrity through backup and recovery services, proactive management of storage devices, and regular updates of virus and malware protection.
- Manage user and computer accounts, overseeing file permissions and security access lists.
- Conduct thorough testing of new releases to minimize user impact and ensure compatibility.
- Develop and document technical processes and procedures as necessary.
- Provide recommendations for hardware, software, and system component purchases.
- Engage with vendors to troubleshoot issues, evaluate products and services, and implement suggestions.
- Uphold Information Systems security guidelines rigorously, with expertise in DoD STIGs and vulnerability mitigation according to RMF and DoD standards.
- Maintain security audit and logging information for classified networked and standalone computers as directed.
- Prepare security documentation for Computer Security input and report project status as required.
Requirements
- Active Top Secret / SCI clearance.
- High school diploma or equivalent.
- Active IAT Level II (CompTIA Security+ or equivalent) Certification.
- Linux+, LPIC, LFCS, or RHCSA certification.
- Minimum of eight (8) years of experience with Linux System Administration.
- Minimum of eight (8) years Installing and maintaining security/update patches for Linux.
- Experience with Programming/scripting languages such as Python, C, C++, C#, Bash, Perl, Go, and Java.
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