System Administrator (Unix/Linux)

STAFFXPERT LLC is seeking a System Administrator (Unix/Linux) on behalf of our client in New York, NY. The ideal candidate will have extensive experience managing, securing, and maintaining enterprise-scale Unix/Linux infrastructure, with a strong focus on Oracle Linux environments, high availability, disaster recovery, and system performance optimization. The successful candidate will collaborate with Oracle Database Administrators, WebLogic Administrators, network security teams, and other IT professionals to ensure reliable system operations, maintain infrastructure security, and support business-critical applications. Key Responsibilities

• Install, configure, secure, maintain, and support Linux/Unix servers, storage systems, and enterprise infrastructure.
• Monitor system performance, analyze resource utilization, and optimize operating system performance.
• Develop and implement server patching strategies, including regular security updates and vulnerability remediation.
• Support operating system security initiatives, intrusion detection, and compliance with established security policies.
• Manage system changes in accordance with established change management procedures.
• Maintain disaster recovery configurations, conduct recovery testing, and document disaster recovery procedures.
• Perform file system backups and recovery testing using Symantec NetBackup and Veeam.
• Administer, monitor, and troubleshoot high-availability server environments running on Oracle Exadata.
• Support the integration and configuration of Oracle Database, WebLogic, and application infrastructure components.
• Configure and monitor scheduled batch jobs, system alerts, and monitoring tools to support system availability and reliability.
• Troubleshoot Unix/Linux infrastructure issues involving networking, storage, hardware, software, and applications.
• Coordinate with Oracle and other technology vendors to resolve technical issues.
• Manage service desk tickets, document incidents, communicate system outages, and escalate critical issues when necessary.
• Maintain system configuration documentation, technical procedures, infrastructure inventories, and operational records.
• Provide technical guidance, knowledge transfer, and support to team members and other IT stakeholders.
• Provide after-hours and weekend support as required to maintain service continuity., This is an onsite contract position based in New York, NY. The standard work schedule is Monday through Friday, 9:00 AM to 5:00 PM, with a one-hour unpaid lunch break. Flexibility to provide after-hours and weekend support is required as business needs arise. Ideal Candidate

• 6 8 years of experience in Unix/Linux system administration, preferably supporting large-scale Oracle Linux environments.
• Strong hands-on experience installing, configuring, maintaining, and troubleshooting Linux/Unix operating systems.
• Experience with shell scripting and automation for system administration tasks.
• Working knowledge of networking services and protocols, including TCP/IP, DNS, DHCP or NIS, NFS, LDAP, SSH, SMTP, SNMP, SSL/TLS, SFTP, HTTP, and Sendmail.
• Experience supporting high-availability systems, system monitoring, performance tuning, and infrastructure troubleshooting.
• Knowledge of operating system security, patch management, backup and recovery, disaster recovery, and change management processes.
• Ability to diagnose and resolve complex hardware, software, networking, and application-related issues.
• Strong analytical, problem-solving, communication, and customer service skills.
• Ability to work independently and collaboratively in a fast-paced, high-pressure environment.

Preferred Qualifications

• Experience with Oracle virtualization technologies, including Logical Domains (LDoms), Solaris Zones, and containers.
• Knowledge of ZFS file systems and Solaris/Unix administration in on-premises and cloud environments.
• Experience supporting Oracle WebLogic, Oracle Application Server, and Oracle Database environments.
• Hands-on experience with Oracle Storage Area Network (SAN) technologies, Automatic Storage Management (ASM), and Oracle Cluster File System (OCFS).
• Experience with Symantec NetBackup and Veeam backup and recovery solutions.
• Familiarity with Oracle Exadata infrastructure and high-availability configurations.
• Experience working with enterprise IT service management, incident reporting, and infrastructure documentation processes., The ideal candidate is a proactive Unix/Linux infrastructure professional with strong Oracle ecosystem experience, a security-first mindset, and the ability to maintain reliable, highly available enterprise systems. They should be comfortable troubleshooting complex technical issues, collaborating across IT teams, and supporting critical infrastructure in a demanding operational environment.