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VoIP Service Automation

Company: Itw
Location: Elmhurst
Posted on: May 10, 2022

Job Description:

Overview: The subject matter expert (SME) will act as the Single Point of Contact for multiple services in the AT&T Converged Services portfolio. He/she will handle escalations for customer/production issues from Operations (Tier 2) and Advanced Technical Support (Tier 3) groups as well as execute Network Verification Testing (NVT) for capacity augments and/or new features/functionalities for the service(s). The individual will be responsible for change management governance of the VoIP network. The individual must be adept in understanding complex enterprise-grade VoIP architectures, partnering with peer organizations, and leading cross-functional teams in this critical role. The candidate should possess 5+ years of experience in Network Operations, Engineering, IT operations, and technical product/program management of VoIP and/or Mobility services. The individual must have a strong background in networking protocols, design, and principles of data and packet based networks. He/she must possess strong organizational skills, be action oriented, results driven, and work with minimal direction. Attention to detail and ability to work under pressure are critical in this role. Key Responsibilities Include: Responsible for Tier 4 problem and troubleshooting/diagnosis and resolution Responsible for test planning and execution for network/field validation testing in a large telecommunications environment. End to End call flow testing of VoIP services which may require coordination with other teams (Domestic and International) Fulfilling the duties associated with customer cut-overs and migrations Developing test scripts and plans; Perl and / or Shell scripting experience is a plus Provide Lab environment test support Debugging packets with Tektronix IRIS, Radcomm or Wireshark Test SIP call traces and SIP call flow Develop Method of Procedure for field implementation Attend project meetings to review system and test requirements Provide production and escalation support to Operations and Service teams Report and analyze Change Management activities across the VoIP network Conflict identification, exception approvals, freeze administration and emergency requests for all changes hitting the VoIP network. Track and report on Outage Remediation action items until completion Provide on-call support for after hour emergencies and exceptions Required Skills/Experience: Strong development of maintainable and testable code in multiple programming languages (preferably Python, Shell Script, Perl, JavaScript, Java) Hands-on experience in working with Open Source frameworks and tools (preferably Robot Framework, Protractor, Selenium Webdrivers, Selenium Grid, Appium, JMeter, Jenkins, SVN/Git, Cucumber, Asterisk PBX, SIPp) Deep experience in testing applications on different OS (iOS/Android/Windows/MAC OS) and web browsers (IE, Chrome, Firefox) simultaneously Knowledge of OSI Model (specifically SIP/RTP/Networking/Mobility) to support VoIP test automation 5 years of testing and field support experience in various VoIP and/or Mobility products and technologies Strong Tier 4 problem and troubleshooting/diagnosis and resolution experience. Testing and field support after hours may be needed Extensive knowledge/experience with various protocols/architectures (SIP, H.323, SS7, Diameter, IMS, T.38) wrt implementation, interworking, troubleshooting, and support Hands-on operational and engineering experience with key VoIP and/or Mobility network element platforms: Cisco (Routers, Switches, WLAN infrastructure), VoIP Gateways, Sonus Gateways and Soft switches, ACME SIP proxy, BroadSoft Application Servers, Avaya PBX, Edgemarc, Devices (Samsung, Apple, Sonim, NEC, Blackberry, ZTE, HTC etc), Ericcson and/or Alcatel Lucent IMS platforms Experience with VoIP and/or Mobility Solutions with extensive knowledge of Dial Plans, Call Features and Media Resources Deep understanding of IP based network systems (VLANs) and protocols (NTP, DHCP) HCP using both IPv4 and IPv6) Experience with gathering, analyzing, and troubleshooting complex customer/network (VoIP and/or Mobility) sessions at the packet level, using tools such as Wireshark and Tektronix. Strong communications skills required for working directly with vendors, customers, and manage/direct outage bridges. Proven experience and success with voice over LAN, WAN and QOS design and implementation. Issue management and tracking (good project management and record keeping skills) Knowledge of quality/bug tracking systems (i.e. HP Quality Center, TMATS) and testing processes Bachelors degree in Computer Science, Information Technology, Management Information Systems, or a related field Understanding IPSec in SIP based mobile telecommunication networks is a plus Understand and able to configure Cisco voice gateways and Avaya Communications Manager is a plus Experience with updates / troubleshooting of mobile devices / UEs (using QXDM or other UE log file tracer tools) is a plus Prior Telecom Business VOIP service delivery (Test and Turn) experience is a plus Bachelors degree in Computer Science, Information Technology or related fieldby Jobble

Keywords: Itw, Elmhurst , VoIP Service Automation, IT / Software / Systems , Elmhurst, Illinois

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