Position: Junior Telco Engineer (IREG)
Company: Infopulse
Experience required: 1y
English level: intermediate

Areas of Responsibility

○ Roaming Hub provisioning (operators implementation according to design; numbering plan updates; opening roaming agreements)
○ Testing GSM, GPRS, CAMEL, LTE, LTE-M, NB-IoT, 5g NSA services in roaming (such as MO/MT calls, SMS, call forward, data transfer, online charging, etc)
○ Troubleshooting of failed GSM/CAMEL scenarios (based on SCCP, MAP, CAP, SIP/ISUP traces and logs)
○ Troubleshooting of failed GPRS/LTE/LTE-M/NB-IoT/5g NSA scenarios (based on GTP and DIAMETER traces and logs)
○ BICS MVNE testing and troubleshooting (IoT service)
○ Multi-IMSI Roaming testing
○ Communication with the mobile networks worldwide for technical issues resolving
○ IREG testing (IR24/35/60/48/38, NG.112 etc)
○ TADIG testing (TAP flow and TAP files validation)

Qualifications

○ Relevant work experience in a mobile service provider environment
○ SS7 stack knowledge (SCCP, MAP, SIP/ISUP) is a must
○ Basic CAMEL/GRX/GTP/DIAMETER knowledge
○ GSM/LTE networks architecture knowledge
○ Understanding of billing systems, CDR’s, TAP flows, TAP files
○ MS/BS degree in IT, Telecommunications or equivalent
○ Intermediate level of English

Will be an advantage

○ Basic LTE-M/NB-IoT, 5g or VoLTE knowledge
○ Understanding open connectivity roaming hub and/or working experience with Data Clearing Houses
○ Knowledge of and experience with core network data implementation on mobile network nodes