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Linux Administrator


Rapidly growing Chicago-based proprietary trading firm seeks a Linux Administrator to join the IT team to assist, monitor and progressively improve the infrastructure of the firm’s professional electronic trading environment.  The ideal candidate has worked within the financial industry and has a strong background in Linux Administration and Support.  This position interacts with all IT functional areas (e.g. architecture, design, network engineering, Helpdesk/Desktop Support, Application Development and Support) on a daily basis.  Work in a dynamic, heterogeneous environment and have an extensive technical background including experience in troubleshooting, monitoring, maintenance and networking.  The successful candidate must be highly motivated, excel at multitasking, and comfortable working in a demanding, state-of-the-art trading environment.


-Help support a 24x7 Linux/Windows trading environment
-Conduct Linux deployment, administration, monitoring, and account management
-Perform Linux and Windows Active Directory authentication integration
-Conduct Disaster Recovery management and testing
-Assist in hardware/software purchases
-Troubleshoot basic TCP/IP connectivity issues
-Process, monitor and prioritize trouble tickets
-Automate any and all tasks that can be automated
-Provide Datacenter management
-Be on-call for overnights, weekends and holidays on a rotational basis with willingness to change schedules as needed
-Support other key initiatives as the business dictates


-2+ years of Linux (RedHat, CentOS) architecture, deployment, administration, networking, performance monitoring, security hardening, troubleshooting and production operations
-Strong knowledge of SMTP, DHCP, DNS, NIS, LDAP, CIFS, NFS, Postfix, BIND, SNMP and Linux system security
-Linux and AD authentication integration (Winbind, Kerberos, LDAP, SFU)
-Packet sniffing applications (snort, wireshark, netmon, etc.)
-VmWare Infrastructure/Backup administration
-Perl and Shell Scripting, including implementing automation and monitoring using shell scripting and other related tools
-System configuration (Altiris, Puppet, Spacewalk, etc.)
-System monitoring (SNMP, Nagios, Cacti, HP OpenView, Dell Open Manage, etc.)
-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)
-Excellent written and verbal communication skills
-Thorough documentation of implementations, modifications and removals
-Highly organized, self-motivated, able to multi-task, and work independently or as part of a team
-Willing to work some weekend maintenance shifts and be on-call for overnights, weekends and holidays on a rotational basis and change duties on an as-needed basis
-Able to lift 50 lbs.
-Bachelor’s Degree in Computer Science, Information Science or related technical field
-Strong GPA (3.5 or higher)

Extensive Experience Required:

-Microsoft Windows Server Administration (2008/R2) and Active Directory
-Active or near completion of RHCT, RHCE, MCSE, CCNA, or similar IT certification
-VB, VBA, .Net, C# and/or Access Programming


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