Telephony Engineer Five9
THIS JOB HAS EXPIRED Five9, Inc. is the leading global provider of Cloud-Based Contact Center Software, growing at 50-70% over the past four years. Five9 is seeking a Telephony Engineer reporting to the Manager Telephony Engineering.
Assists in the design implementation, planning and capacity management of the telephony environment.
Troubleshoot and resolve persistent problems and escalated issues.
Respond to alerts and alarms troubleshooting and correcting problems coordinating issues with the Network Operations Center.
Interface directly with customer?s telecom engineers and IT teams to deploy customized solutions and trouble shoot issues.
Document fixes for persistent issues.
Hold vendors & telecom carriers accountable to resolve systemic issues, bugs and abnormally high failure rates.
Interop testing with the telecom carriers (Level3, XO, Global Crossing, ATT & Verizon etc)
Implement hardware and software deployments on the telephony network, servers as required.
Assist in the planning and management of all aspects of Telephony related projects.
Scale and deploy redundant collocation facilities
Provide 24x7 on-call support and escalation to Telephony carriers
5+ years experience engineering or supporting large-scale production voice networks.
Understanding of Telephone Company & Carrier procedures, trouble shooting and documentation.
Experience in supporting mission-critical 24x7 Telecom & Network services
Knowledge of telecom principals and terminology including DID?s Toll Free numbers, LATA OCN and NPA-NXX etc.
Ability to execute and use intermediate level Linux/Unix system administrator commands
Hands on experience using T1, T3. OC3, OC12 muxing, sonnet/SDH and aggregation equipment. Examples ONS, Tellabs Alcatel Lucent
Direct customer interaction trouble shooting and deploying telecom solutions
Self-starter with excellent troubleshooting skills and ability to prioritize tasks and organize workflow accordingly
Ability to grasp new concepts quickly
Ability to understand the problem and communicate it for others
Experience with voice protocols SIP/ISDN/SS7/MGCP/T.38
Desired Technology Skills:
PROTOCOLS ?IP/VOIP: TCP/IP protocols suite, 3GPP/3GPP2, IMS/NGN, SIP/SDP, STUN, H323, MGCP, BGP, HSRP, OSPF, DNS, SIP, RTP
SECURITY: IPSec, VPN, L2TP, PPTP, TLS/SSL, Digital Certificates, IPS/IDS, SSH, RADIUS, TACACS+
LAN, AND WAN: Ethernet/VLAN/ Spanning tree, Frame Relay/ISDN/Tx/OCx, Routing protocols
NETWORK ANALYSIS AND EMS: Wireshark/EtheReal, ClearSight, Kismet, CiscoWorks, OpenView
SOFTSWITCHES/GATEWAYS: Session Border Controllers/Proxies and Media Gateways ? SER/OpenSER, Asterisk, Broadsoft, Cisco CallManager/Unity, Metaswitch, Sonus, Sylantro, Coppercom, Nortel C2K, BEA Weblogic
Transport: SONET/SDH, T3,T1 Muxing, Gigabit
||San Ramon, CA |
THIS JOB HAS EXPIRED