Engineer/Senior Engineer-Packet Core

Ericsson is currently seeking a dynamic Senior Engineer Packet Core. To ensure configuration/Trouble Tickets/Troubleshooting/Security Compliances on various Core nodes on Ericsson Network Architecture.

Responsibilities

To ensure configuration/Trouble Tickets/Troubleshooting/Security Compliances on various Core nodes on Ericsson Network Architecture; To ensure configuration/upgrades/updates on various CS Core nodes monitoring and review of TT, CR and AT on daily basis; To ensure MSTOP Processes are followed in the Workplace; To ensure Password policies, security policies and audits are properly & periodically followed; To contribute in the creation and improvements to procedures and routines within the department / group

Requirements

Good understanding and experience on 3GPP standards and PS Core protocols; Sound level domain knowledge around 2G, 3G, 4G, 5G, VoWifi; In-depth product knowledge of Cisco/Huawei/Nokia/Ericsson (At-least 2) Packet Core N/W Elements; Configuration and troubleshooting experience of Packet Core Network Elements like SGSN, GGSN, PCRF, DNS, SGW, PGW, EPDG, AAA; Knowledge of VOLTE/IMS related configuration in MME/GGSN; Configuration knowledge of creation of OSPF, IP pool addition, OCS/DRA/PCRF definition, LAC Barring, CSFB, SRVCC, APN creation, BSC/RNC migration, TAI-DB management; Understanding of SS7 network, GPRS call flow, 3G call flow, EPC/LTE/volte call flows and RF network of GPRS; Understanding of Gb, Gr, Gi, Gn, IUPS, Gx, Gy, Gz, S1, S6a, S11, SGs, S10, Gi configuration & integration; Understanding of Deep Packet Inspection configurations; Should be well versed with important PACO related KPIs, their analysis & improvement plans; Good understanding of Service Awareness and differentiated charging related concepts; Knowledge of Latest Paco Nodes/Technologies – CUPS, F5, Cloud, 5G NSA, 5G SA, VoWifi; Expertise on Protocols (i.e. SS7, ISUP, BICC, SIGTRAN, INAP, CAP, TCAP, MAP, SCCP, SIP, SDP, GTP, Diameter signaling); Call flows and Call scenarios, Multiple Test Cases, AT and clear understanding; Expertise on Ericsson and Huawei MSC, M-MGw, I-SBC etc.; Hands on experience on AXE 810, APZ 214 01/03, APG 43L, M-MGw GMPv3 & GMPv4, SIS-BC, BSP-BC; Hands on experience on Huawei MSOFTX3000, UMG8900, SE2900; 2G/3G/LTE/4G, VoLTE/IMS, call flows; All academic credentials must be from recognized and accredited institutions and are further subject to verification