| Job Requirements |
Senior Linux Administrator
Responsibilities:
-Assist in designing, implementing and supporting a 24/7 Linux/Windows trading environment.
-Linux deployment, administration, performance tuning, monitoring, and account management.
-Linux and Windows Active Directory authentication integration.
-Disaster Recovery management and testing.
-Assist in hardware/software purchases.
-Train new employees/existing staff as directed.
-Troubleshoot advanced TCP/IP and multicast issues.
-Process, monitor and prioritize trouble tickets.
-Automate any and all tasks that can be automated.
-Datacenter management.
-On-call rotation as needed.
-Support other key initiatives as the business dictates.
Qualifications:
-Thorough knowledge (5+ years) of Linux (CentOS, Debian and/or Redhat) architecture, deployment, administration, networking, performance monitoring/tuning, security hardening, troubleshooting and production operations.
-Experience administrating Microsoft Windows servers (2003, 2008) a plus.
-In-depth knowledge of real-time operating system concepts and implementations.
-Strong knowledge of SMTP, DHCP, DNS, NIS, LDAP, CIFS, NFS, Postfix, BIND, SNMP, and Linux system security.
-Experience with packet sniffing applications (snort, wireshark, netmon, etc.).
-Linux and AD authentication integration (winbind, Kerberos, LDAP, SFU).
-Strong system configuration experience (Altiris, Puppet or CFEngine).
-Strong knowledge of Kickstart procedures.
-Fluent in Perl and Shell Scripting, with experience implementing automation and monitoring using shell scripting and other related tools.
-System monitoring experience (SNMP, Nagios, Cacti, HP OpenView, Dell Open Manage, etc.).
-Strong Linux/Unix networking knowledge required (knowledge of Cisco and IOS a plus).
-Backup experience. Veritas Netbackup preferred.
-VMWare Infrastructure experience.
-Experience with Source code control systems, and bug tracking systems like JIRA.
-Ability to manage build environment, including familiarity with source control and standard build tools (make, ant).
Technology Jobs in Chicago, Jobs, Chicago, Linux Administrator, Linux, Systems Administrator, Perl, Shell, Real time, Windows, TCP/IP, Multicast, Active Directory, Trading
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