Telecom EngineerFive9 Inc.

Job Description
Five9 provides businesses reliable, scalable, and secure cloud contact center software designed to create exceptional customer experiences, increase agent productivity, and deliver tangible business results.
We are driven by a passion to transform contact centers into customer engagement centers of excellence. Since 2001, Five9 has led the cloud revolution in contact centers, helping organizations transition from legacy premise-based solutions to the cloud.
To complement our rapid growth, Five9 is looking for an experienced Telecom Engineer to join our Telco Services team. 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.
Responsibilities:
Interface directly with customer's telecom engineers and IT teams to deploy customized solutions and trouble shoot issues
Assist in building customer and carrier SIP Trunk connectivity, including interop sessions and activations
Assist in the day-to-day operational support of the Telecommunications network, analyzing problems affecting network availability and customer quality reports
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
Respond to Telecom alerts and alarms and provide corrective actions in coordination with the Network Operations Center
Create technical documentation and call flow drawings as needed
Manage Telecommunications Service Provider & Vendors
Implement hardware and software deployments on the telephony network as required deploy new services including interop testing with telecom carriers and customers
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
Qualifications:
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.
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
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
Willing to work US time schedule
Company Benefits
Company stocks
Annual merit increase based on performance
15% night shift differential pay
Paid Leave with Cash Conversion
HMO with free dependents
Retirement Plan
Life Insurance
While on work from home setup: Internet and meal allowance are provided
Employee Assistance Program for mental and social well-being
Government-mandated Benefits (SSS, PhilHealth, PagIBIG, 13th month pay, Solo parent leave, Special leave for women)
#LI-JM2
Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer.
View our privacy policy .
California residents, view our Privacy Notice here: .
-------------------------------------------------------------------------------------------------------------------------------------
Our headquarters are located in the San Francisco Bay Area with global hubs in the United Kingdom, Germany, Philippines, Portugal, and Australia.