Nokia Core MS Engineer 

India 

830011223

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

• 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
• Support other L2 domain teams in identifying faults
• 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, individual subscriber issues
• 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

echnical 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

AMF, SMF, UPF, CSD

Nokia has received the following recognitions for its commitment to inclusion & equality:

• One of the World’s Most Ethical Companies by Ethisphere
• Gender-Equality Index by Bloomberg
• Workplace Pride Global Benchmark