[PLUG-JOBS] Full Time Sr. Linux Systems Administrator (Centos/RHEL)

[David Gibbons]

Do you...

* Have a passion for solving technical problems, from the network to the 
application stack?
* Want to build and manage solutions that provide infrastructure for 
deploying, managing, and maintaining hundreds of servers?
* Desire to design and implement fully-automated systems infrastructure?
* Prefer to understand how something works, versus simply being content 
with knowing it does work?

Team members of the Rentrak Infrastructure Systems Group thrive on the 
scale and mission-critical nature of our complex 24/7 transactional 
systems as well as the challenge that comes along with their operation. 
Our workgroup functions as a highly collaborative cross-trained unit. 
All team members utilize their significant UNIX systems experience, 
network knowledge, troubleshooting skills, and scripting abilities to 
design, deploy, monitor, and automate all operational aspects of 
Rentrak's revenue-critical platforms. The ideal candidate will have 
skills ranging from IT architecture and operations to tool development.

Responsibilities

o Function as a technical generalist within a team responsible for the 
overall health and performance of our systems.
o Work with development teams to design, document, implement, maintain, 
and improve corporate projects.
o Participate in a 24/7 on-call rotation.

Requirements

o Strong scripting skills in one or more languages: Bash, Python, Perl, 
Ruby.
o Strong background in root cause analysis of large scale, high volume 
services with multiple dynamic components including web servers, SQL 
databases, application servers, and LAMP environments.
o Applied knowledge of TCP/IP, HTTP, DNS, SMTP, DHCP, SNMP, LDAP, SSL, 
IPSEC, and other core protocols for systems administration.
o Knowledge of Internet fundamentals. (e.g. RFCs, DNS architecture, best 
practices, security, etc.).
o Familiarity configuring and supporting routers, layer3 switches, 
hardware load balancers, and firewalls.
Preferred Experience:
o Experience with automation frameworks such as Cfengine, Puppet, 
Kickstart, PXE.
o Experience with systems monitoring tools such as Nagios, Splunk, Cacti 
and similar solutions.
o Understanding of storage fundamentals and experience with NFS, EXT, 
XFS, ZFS, and SANs.
To Apply
Please email your cover letter, resume, salary expectations, and 
complete answers to the questions below in one of the following formats 
(RTF, TXT, or ODT) to HR at rentrak.com. If you have a technical blog or 
on-line examples of your work, please include links in your cover 
letter. The answers to the questions should take no more then 20 minutes 
to complete. Feel free to use as much or as little detail as you deem 
reasonable. All applications with complete answers will be considered.

Application Questions:
1. You don't want to type your password when you ssh into a machine. 
What can you use to accomplish this? Are there any security concerns 
with your approach?
2. A server is described as being “really slow”. What are the first 
couple of things you would check?
3. Write a one-line command that prints a unique list of users running 
processes on the system. Can you number them on a per-user basis? Are 
there any exceptions or “gotchas” to your solution?
4. Describe a project you were really excited about. This could be a 
custom Linux install, a hardware hack... anything you were real excited 
to work on. (limit this answer to 2 paragraphs.)

-- 
David Gibbons |System Administrator 
o 503.284.7581| david.gibbons at rentrak.com
RENTRAK | www.rentrak.com | NASDAQ: RENT

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