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Nokia

Compare

4.1

based on 2.3k Reviews

Proud winner of ABECA 2024 - AmbitionBox Employee Choice Awards

Top Rated Large Company - 2024

4 Nokia Specialist Jobs

Core MS Specialist

Nokia Solutions and Networks India (P)Ltd.

4.1

based on 2.3k Reviews

3-6 years

Chennai, Bangalore / Bengaluru

1 vacancy

Core MS Specialist

Nokia

posted 5mon ago

Job Role Insights

Flexible timing

Key skills for the job

Telecom Linux Presales Perl IMS SIP

+ 3 more

Job Description

Managed Services support required on all EPC products for 4G & 5G NSA network at L2 level as per 24X7 availability model in very senior role

Technical requirements

Multiple years of hands on experience on EPC Network
In depth knowledge of SGSN/MME, DNS, PCRF, OCS, DRA/DEA, AMF, SMF, UPF, CSD
In depth understanding of 3G,4G, LTE, 5G Roaming call flows
Expertise in Fault and Configuration Mangement
Fully experienced with Cloud core technology
Strong Knowledge in all Telecom protocols Specially SIP, MAP,
CAMEL, Radio access & Diameter.
Good understanding of the interfaces of 3g,4g
Diameter (AVPs & result code), GTP Protocol knowledge
Comfortable in different versions of Linux and scripting both Perl and shell
Well versed with delivery requirements & Challenges in Telecom Operations and Maintenance
Be able to provide product level support and can act as Escalation 24/7 support
Must have performed SPOC level task

Experience in Nokia IMS under cloud for multiple VNFs including
CMM
CMG
CSD
ePDG
NPC/PCRF
IP Tech

AMF, SMF, UPF, CSD

Responsibilities: -

Must have performed lead & SPOC level tasks
Provide 24/7 L2 support on relevant elements
Perform L2 fault and service restoration
Perform L2 fault investigations and root cause analysis to resolve issues within SLAs.
Input into Incident Reports and Problem Management
Update TT with L2 fault information, impact analysis and rectification.
During critical and escalated major fault rectification, participate in fault management as requested by the Incident Manager and attend the bridge conferences as per the WLA.
Escalation to Vendor for L3 support in the rectification of service impacting faults and other system faults as necessary
Collect and analyses required logs and traces during and post fault investigations
Develop, maintain and perform L2 Health Checks and scripts
Develop and maintain L2 technical processes and tools
Ensure backup of all elements as per Back-Up policy
Assist performance team in troubleshooting of Network performance issues and customer faults,
Review plans and results of IOT, SW release and feature testing
Review regression test plan, specifications and results for SW updates
Implementation of SW updates including review release notes, impact/risk assessments, FAR (participate in FAR to up-skill for GAR rollout), GAR, analyze performance post change
Maintain network baseline document set eg life cycle database for all elements
Review technical documentation/notes and faults descriptions from Vendor and implement workarounds/fixes as required
Maintain known issue list/ Risk Register
Improve optimization of alarms, counters and thresholds.
Provide recommendation to the local Engineering teams on configuration, software updates and general element management as appropriate.
Review, awareness and approval of CR activity and participate in
Daily CR Review meetings
Usage data collection and control
Perform System Performance monitoring and analysis
Provide Operational Acceptance for new elements being introduced into the network
Provide data for pre-sales support