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Sr. Specialist NQ Roaming-2048-1

Toronto, ON
Job Description: Sr. specialist NQ Roaming

Must Have
•       Extensive experience in core & roaming network signaling and standard protocols
•       Roaming and core network parameters tuning, audit and optimization skills
•       High level of expertise in VoLTE and IoT roaming network solutions, design, deployment and testing
•       GRX & IPX  interconnect signaling protocols knowledge
•       Experience with roaming launches projects in different technologies including VoLTE roaming 
•       Strong knowledge of GSM/UMTS/LTE/5G signaling (i.e. IuCS, IuPS, GSM MAP, CAMEL, ISUP, SIP, S1AP, SGs, GTPv1, GTPv2, Sy, …) and ability to analyze call flow  traces and identify root cause of the network issues
•       Strong knowledge on IMS&LTE network architecture include SIP and Diameter protocols
•       Contribute in all phases of IREG testing process and roaming QoS performance monitoring
•       Mobile subscribers’ profile knowledge and profile provisioning skills
•       The capability of monitoring  the network performance and Identifying network issues.
•       Critical thinking and strong network troubleshooting  and analytic skills
•       Core and roaming network KPIs/KQIs deep knowledge for different network elements 
•       Report generation and strong report development skills
•       SMS/MMS intercarrier experience
•       Network probing tools hands-on experience such as NetScout and Polystar
•       Traffic taping, traffic aggregation , probing tools deployment
•       Strong data analytics skills
•       Network analytics, customer experience tools deployment
•       Build and update documentation on regular bases
•       Flexibility to work during the maintenance window
•       IP switching and routing skills
•       Linux OS hands-on experience
•       1 to 5 years of experience in cellular network
Nice to have
•       IREG testing experience such as IR24, IR32, IR35, IR38 and IR25
•       5G NSA, SA  core and roaming strong knowledge
•       Strong 5G SEPP interworking knowledge
•       Cloud infrastructure basic understanding
•       Roaming testing tool experience  such as SIGOS tool
•       Experience of SIM card provisioning and handset testing
•       Network analytics tools hands-on such as Mobileum, NetScout, Polystar etc.
•       Hands-on experience on  Dell , Cisco etc. switches and routers
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