Linux System Adminstrator

Quantum Technologies LLC; Wilmington (DE); In loco; USD 95.000 - 130.000; Tempo pieno

Descrizione del lavoro

Quantum Technologies. LLC seeks an experienced Linux System Administrator to manage, configure, and support Linux-based server environments.

The role emphasizes enterprise-grade reliability, security, and automation, based in Wilmington, Delaware, on-site. You will install and maintain RHEL/CentOS and Ubuntu servers, automate tasks with Bash, manage network services (DNS, DHCP, SSH, NFS), and oversee backups, patching, and disaster recovery.

Competenze

• Strong experience administering Linux servers (RHEL/CentOS, Ubuntu, SUSE) in enterprise environments.
• Experience with shell scripting and automation.
• Solid knowledge of networking (TCP/IP, DNS, DHCP) and security updates.
• Experience with web servers Apache/Nginx and storage management.

Mansioni

• Install, configure, and maintain Linux operating systems across enterprise server environments.
• Monitor system performance and troubleshoot issues.
• Manage user accounts, groups, file permissions, and access controls.
• Configure and maintain DNS, DHCP, SSH, NFS, and TCP/IP services.
• Implement backup, restoration, and disaster recovery procedures.
• Maintain system documentation and operational procedures.

Conoscenze

Linux administration

RHEL/CentOS

Ubuntu

Shell scripting

Networking

Security hardening

Apache/Nginx

Automation

Descrizione del lavoro

Work Authorization

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Job Summary

We are seeking an experienced Linux System Administrator responsible for managing, configuring, maintaining, and supporting Linux-based server environments. The ideal candidate should have strong expertise in Linux administration, server monitoring, system troubleshooting, security management, networking, and automation.

Key Responsibilities

• Install, configure, and maintain Linux operating systems across enterprise server environments.
• Manage Red Hat Enterprise Linux (RHEL), CentOS, Ubuntu, and SUSE Linux servers.
• Perform daily system administration, monitoring, and maintenance activities.
• Manage user accounts, groups, file permissions, and access controls.
• Configure and maintain file systems, disk partitions, LVM, and storage devices.
• Perform operating system upgrades, kernel patching, and security updates.
• Monitor system performance, CPU utilization, memory, disk space, and network activities.
• Troubleshoot server issues, system failures, and application performance problems.
• Configure and manage DNS, DHCP, SSH, NFS, FTP, and TCP/IP services.
• Implement backup, restoration, and disaster recovery procedures.
• Manage system security, firewall configurations, and vulnerability remediation.
• Automate routine administration tasks using Shell and Bash scripting.
• Configure and maintain Apache and Nginx web servers.
• Support production environments and resolve infrastructure-related incidents.
• Maintain system documentation and operational procedures.

Required Technical Skills

• Ubuntu and CentOS Administration.
• Linux Server Installation and Configuration.
• Shell Scripting and Bash.
• User and Group Management.
• File Systems, LVM, and Disk Management.
• Kernel Management and OS Patching.
• TCP/IP, DNS, DHCP, SSH, NFS.
• Apache and Nginx.
• Linux Performance Monitoring and Troubleshooting.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.