Join Five9 as a Senior Telecom Engineer to bring joy to customer experience. As a full-time remote role based in the UK, you'll work in a 24/7 production support environment, deploying customized solutions and troubleshooting issues with VoIP, SIP, and RTP.
Requirements
- 3-5 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.
- Experience with ribbon SBCs and PSX.
- Working knowledge of VoIP principles, protocols and CODECs such as H.248, SIP, G.711, G.729, WebRTC, MPLS, VPN, UDP, RTP, MTP etc.
- Knowledge of SIP call routing, Least Cost Routing, Security Controls (TLS, IPSEC, ACLs) with Session Border Controllers.
- 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.
- Excellent organizational and follow-through skill sets are essential.
- Ability to 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.
- Ability to execute and use intermediate level Linux/Unix system administrator commands.
- 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.
Benefits
- Generous Paid Time Off
- 401k Matching
- Retirement Plan
