Telecom Engineer

To complement our rapid growth, we are actively sourcing for an experienced Telecom Engineer to join our cloud operations organization on a full-time basis. The ideal candidate is someone who has worked in a 24/7 production support environment and has a strong working knowledge of VoIP, SIP, and RTP. This position is based at our headquarters in San Ramon, CA or can be located in the continental US.

Key Responsibilities:

• Interface directly with customer’s telecom engineers and IT teams to deploy customized solutions and trouble shoot issues
• Escalation point of contact for the Network Operations Center to resolve critical alerts generated by the SBC’s
• Analyze history of telecommunication related incidents and perform preventive measures
• Assist in the day-to-day operation of the telecommunications network, where necessary analyzing problems affecting network availability and customer/vendor service quality
• Provide root-cause analyses on service outages
• Implement hardware and software deployments on the telephony network as required; deploy new services including interop testing with telecom carriers and customers
• Capacity Management of telecom carrier SIP trunks
• Capacity Management on telephony hardware including Session Border Controllers
• Software licensing management of all telephony hardware including but not limited to Session Border Controllers & Policy Servers, Network Monitoring Tools
• Reporting and tracking of capacity management and licensing on telephony carriers and hardware
• Provide emergency assistance and technical recovery in the event of an emergency situation affecting the availability and/or service quality of the network
• Participate in on-call emergency rotation

Requirements:

• 2+ years of telecom engineer experience with VoIP/SIP voice applications
• Must have a detailed, working and theoretical knowledge of voice and data communications, including traditional switching, signaling and routing systems to include SIP, TCP/IP, MPLS etc.
• Strong theoretical and working knowledge of VoIP principles, protocols and CODECs such as H.248, SIP, G.711, G.729, WebRTC, MPLS, VPN, UDP, RTP, MTP etc.
• Strong knowledge of SIP call routing, Least Cost Routing, Security Controls (TLS, IPSEC, ACLs) with Session Border Controllers
• Excellent knowledge of telecom principals and terminology including DIDs, Toll Free numbers, LATA OCN and NPA-NXX etc.
• Experience with International Routing including ITFS, iDID’s and local termination policies
• Ability to build, interop and maintain direct connect SIP Trunks to customers and carriers
• Review, Assess, Critique and Implement Telecom Architecture design changes in Lab and Production environments
• Document, troubleshoot and resolve a multifaceted and complex Global voice network
• Maintain the telephony environment to assure delivery of Cloud applications, voice and customer connectivity and availability to target 99.99% SLA
• Experience with Softswitch, Session Border Controllers (preferably Sonus/Ribbon, Audio Codes), SIP proxies, Media Servers (preferably AudioCodes IPM-6310 and FreeSWITCH)
• In depth knowledge of Wireshark, Empirix or other network protocol analyzers
• Ability to capture and analyze RTP streams as related to voice quality traditional KPI’s such as MOS, Jitter, Latency, Packets Loss
• Excellent working knowledge of telecommunications, maintenance processes and systems
• Proven ability to resolve complex issues in an efficient and timely manner and provide clients with consultative explanations and advice
• Self-starter with excellent troubleshooting skills and ability to prioritize tasks and organize workflow accordingly
• Excellent verbal and written communication skills are required
• Excellent documentation skills are required

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