Job Description for L2 IMS Core Engineer(Network Part) :
- Rich Experience in VoIP/IMS Core entities(Knowledge of P/I/S-CSCF, HSS, SLF) and VoLTE.
- Extensive experience with SIP Call processing and SIP Supplementary Services.
- In-depth understanding of Telecom Protocols and technologies like SIP,SDP,H.248,MGCP,DIAMETER etc.
- Great Conceptual understanding of IMS evolution and trends - IMS Subsystems, functionalities and IMS SIP Services call flows.
- Experience in TLS, TCP, IPSEC, IP protocols.
- Experience in integrating/working with various components of a distributed next generation IP based architecture including soft switches, Gateways, SIP Proxies, Route Engines, IP Media Servers, IP Phones/IADs is a Plus.
- Working experience on IMS interworking entities(BGCF, MGCF, MRFC, MRFP, AGW, IBCF, TrGW) and interfaces.
- Knowledge on Session Border Controller, NAT, Firewall, Authentication Encryption, L2 Layer switches(Routers/Switches).
- Media handling, transcoding, call modeling CS, SMS, MMS and need to have knowledge on the MGW’s.
- Good Analytical and Log debugging Skills(Scripting knowledge is a value added)
- Need to have knowledge on the Class4/5 Switches and Strong exposure to Unix/Linux OS.
Job Description for L2 IMS Application Engineer(Application Part) :
- Should have ability and good understanding on IMS Subsystems interfaces and protocols used.
- In-depth Knowledge on Telecom Protocols and working experience SIP,SDP,H.248, DIAMETER and IP Protocols(TCP/UDP, TLS over TCP, IPSEC ).
- Experience in integrating/working with various components of a distributed next generation IP based architecture including soft switches, Gateways, SIP Proxies, Route Engines, IP Media Servers, IP Phones/IADs is a Plus.
- Working Experience on the IMS interworking entities GUI configurations(IMS Core entities – P/I/S-CSCF’s, BGCF, MGCF, MRFC, MRFP, AGW, MGW, IBCF, TrGW) and interfaces.
- Need to have configuration knowledge on SBC’s, NAT, Firewall, Authentication Encryption, L2 Layer switches(Routers/Switches).
- Knowledge on WebRTC/WebSockets.
- Ericsson’s MTAS, MIO and WCG.
- Need to have knowledge on Ericsson IMS Application Servers(CAMEL/IS41), EMS/NMS interfaces.
- Need to have knowledge on the DHCP and DNS Server Configurations.
- Exposure to project/product QA life cycles(release/build management, defect management, configuration control)
- Need to have knowledge on debugging application layer logs(GUI logs – JAVA, SNMP, DB logs).
Hi,
We have multiple openings for different location, for different clients. If you are interesting in plz find the attached details.
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