Fullduplex is a small VoIP and software technology house based in London UK.
We are looking for a good highly experienced Linux admin on a part time contract 4-5 times a week for a few hours. You can do in conduction of full time job but must be motivated and work smart. You must have very good experience (4 years plus) and fully understand the world of Linux, and have good understanding on bash and shell scripting.
They have to know some programming including Perl,
A understand on VMware, replication, HA proxy, asterisk and other VoIP applications, ldap, mysql, security, redundancy operations, samba, redis file clustering and windows server.
The person I am looking for has to be sharp and should know some of the above technologies already,
Must speak good English.
Excellent understanding of VOIP
How some idea of asterisk AMI and SIP
Excellent understanding of networking and firewall
Linux security, Harding on machine to make them un-hackable,