Linux Engineer/Systems Engineer

4+ years Linux administration experience is required

BS degree in engineering, computer science, or a technical field is preferred

Experience in a trading firm

Must be advanced in scripting and Linux

Must be able to write a simple program

Skills

Expert in Linux including most of the following:

• Experience with Red Hat Enterprise Linux or a derivative such as Centos (required!)
• Scripting with python and/or perl and/or shell (required!)

• Experience with performance tuning

• Experience with other distributions such as Debian, Ubuntu, Gentoo, and other variants of Unix such as Solaris, FreeBSD, etc.
• Package management and automated system installation and patch management
• Filesystem management including partitioning, LVM, hardware and software RAID
• Expert understanding of TCP/IP networking including Ethernet, IP, ARP, IP, TCP, UPD, etc
• Network administration including configuring IP unicast and multicast operation, dhcp, dns, and network servers such as FTP, NFS, Samba and Apache
• Configuring and monitoring system security including user/group administration, authentication, auditing, packet filtering, etc.
• Experience tracing network activity using tools such as tcpdump, snoop, wireshark, sniffer, etc
• Compiling applications and kernels to optimize system performance
• Performance monitoring and optimization including latency measurement and reduction
• System monitoring with SNMP and tools such as Cactus, Nagios, etc.
• Time synchronization with NTP, PTP, PPS or IRIG
• Automating installations with kickstart or related products
• System automation with Puppet, cfengine, or related products
• Virtualization with KVM, Xen or a related product
• Experience with databases such as MySQL, Oracle, Sybase, MS-SQL etc.