What are the responsibilities and job description for the Linux Administrator - Naperville, IL position at Thunderhawk Technology Partners?
Job Titles: Linux Administrator
Location: Naperville, IL
Duration: 6 Months
Job Summary:
Seeking a highly experienced Senior Windows & Linux Administrator with 15 years of enterprise infrastructure experience. The ideal candidate should possess strong expertise in Windows Server, Linux administration, security hardening, patch management, backup & recovery, virtualization, monitoring, authentication systems, and production support for mission-critical environments.
Must-Have Screening Questions:
Key Skills:
System Administration:
Location: Naperville, IL
Duration: 6 Months
Job Summary:
Seeking a highly experienced Senior Windows & Linux Administrator with 15 years of enterprise infrastructure experience. The ideal candidate should possess strong expertise in Windows Server, Linux administration, security hardening, patch management, backup & recovery, virtualization, monitoring, authentication systems, and production support for mission-critical environments.
Must-Have Screening Questions:
- How do you troubleshoot a Linux server experiencing high CPU utilization?
- Explain your approach to Windows Server patch management in a production environment.
- How do you troubleshoot Kerberos authentication failures?
- What steps do you follow to validate backup and disaster recovery readiness?
- Describe your experience with VMware snapshots and recovery scenarios.
- How do you identify and remediate security vulnerabilities on Windows and Linux servers?
Key Skills:
- Windows Server Administration
- Linux Administration (RHEL, CentOS, Ubuntu)
- Active Directory (AD)
- Kerberos Authentication
- VMware / Hyper-V
- Patch Management
- Security Hardening
- Vulnerability Remediation
- Backup & Recovery
- Antivirus / EDR Solutions
- System Monitoring & Performance Tuning
- Production Support (L2/L3)
System Administration:
- Install, configure, upgrade, and maintain Windows and Linux servers.
- Perform OS patching, upgrades, firmware updates, and driver installations.
- Manage .NET, Java, and enterprise application runtime environments.
- Manage system and application backups.
- Configure and maintain VM snapshots.
- Validate backup success and perform recovery testing.
- Implement security hardening standards.
- Manage Antivirus/EDR platforms.
- Maintain certificates and resolve vulnerabilities.
- Ensure compliance with enterprise security policies.
- Monitor CPU, memory, storage, and application performance.
- Analyze logs and troubleshoot performance issues.
- Configure monitoring and alerting tools.
- Troubleshoot firewall, port, and connectivity issues.
- Resolve AD, LDAP, and Kerberos authentication problems.
- Support identity and access management integrations.
- Provide L2/L3 production support.
- Perform root cause analysis (RCA).
- Resolve application compatibility and runtime issues.
- Implement preventive measures for recurring incidents.
- 15 years of Windows & Linux Administration.
- Strong expertise in RHEL, CentOS, Ubuntu, and Windows Server.
- Hands-on experience with VMware/Hyper-V.
- Experience supporting enterprise production environments.
- Strong troubleshooting and incident management skills.
- Enterprise Monitoring Tools
- Vulnerability Management Tools
- Automation/Scripting (PowerShell, Bash)
- ITIL / Change Management Experience