Asterisk OpenSER expert needed

need openser, asterisk and linux developer. we want to set up OpenSER to communicate with our asterisk servers implementing load balance and fail over. developer must have a strong knowledge of OpenSER and Asterisk knowledge of asterisk billing solutions not required. job is mostly install and configuration. developer will - install and configure OpenSER on 2 servers - install and configure asterisk+mysql with g729 and g723 support on 3 servers - set up mysql db on current asterisk server - peform asterisk support, consulting and recommendations tech must be able to communicate effectively. tech must satisfactorily demonstrate the working implementation/testing of the job. time is also of essence in this project. some php scripting job is also available when this project is completed.