network discovery and network monitoring

I am looking for a freelancer to assist me with network discovery and network monitoring. I am primarily looking for a service that will help me with Observation Scanning, Full Network Scanning, and Specific Host Scanning, using SNMP and up/down stats for active monitoring. In addition to this, I require that the freelancer monitor and track data from Network Resources. If a freelancer is able to provide such a service, please reach out to me.