Professional Employers Private Limited, Pakistan
Responsible for IMS core project delivery and technical support for IMS core network products, including equipment commissioning and debugging, upgrade and cutover, troubleshooting, and HLD/LLD Design.
Primary Duties & Responsibilities:
- Planning and Designing of HLD/LLD Documents.
- Deployment of cloud core network elements.
- Software Installation and commissioning.
- Integration of Network Elements.
- Migration of Subscribers/traffic.
- Patch Upgrade and Expansion of Existing Network elements.
- Troubleshooting of Network issues.
- Provide technical training, technical guidance, and technical communication for on-site maintenance engineers and customer engineers.
Routine Actions:
- Supporting projects of vIMS Core entities (Knowledge of P/I/S-CSCF, HSS, SLF, TAS (ATS) BGCF, MGCF, MRFC, MRFP, AGW, IBCF) and VoLTE.
- Responsible for technical communication & clarify with the operator, provide relevant solution with support team towards customer requirement.
- Ensuring smooth delivery of IMS Core related Projects.
- Knowledge of Internet security framework like ISO 2000, Security Framework Compliance.
- Support according to project requirements based on different Time zone.
- Ready to travel anywhere as per business needs.
Job Specification
- Bachelor Degree in ECE/Computer Science (IT) / Computer Science/ or related fields.
- 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.
- Experience in TCP, IPSEC, IP protocols.
- Great Conceptual understanding of IMS evolution and trends - IMS Subsystems, functionalities and IMS SIP Services call flows.
- Working experience on IMS interworking entities (P/I/S-CSCF, HSS, SLF, TAS(ATS) BGCF, MGCF, MRFC, MRFP, AGW, IBCF) and interfaces.
- Knowledge on Session Border Controller, NAT, Firewall, Authentication Encryption, L2 Layer switches (Routers/Switches).
- Installation and commissioning experience.
- HLD and LLD Designing experience is a plus.
- Cloud SAAS, IAAS and PAAS basic knowledge.