Subject Matter Expert - IMS

Nokia; Bengaluru; On-site; INR 1,800,000 - 2,800,000; Full time

Job summary

Nokia Bengaluru is seeking a senior professional to lead Live Network Intervention delivery assurance. You will ensure quality artifacts, procedures, and scripts, guiding execution and supervising teams during maintenance windows.

Candidates should bring 10+ years in software/IT/telecom architecture, deep Mobile Core expertise, and strong knowledge of 4G/5GSA interfaces, TCP/IP, and cloud technologies. This role demands cross-domain collaboration and advanced scripting capabilities.

Qualifications

• Bachelor’s degree in computer science or a related field is required.
• Proven experience in defining architecture and delivering solutions to market.
• Extensive telecom experience (4G/5GSA) with Mobile Core network elements and technologies.

Responsibilities

• Own and be accountable for all aspects of the LNI activity as SME in Delivery Assurance.
• Leverage Mobile Core expertise, best practices, and lessons learned across product domains.
• Review and approve LNI plans, data sources, procedures, scripts, and artifacts prior to customer deployment.
• Establish KPIs to measure network impact from LNI work.
• Capture and share review findings and lessons learned for best practices.
• Execute and supervise services delivery teams during maintenance windows and incidents.
• Join or lead troubleshooting groups for Live Network Intervention as needed.
• Contribute to automation programs focused on LNI prep and execution.
• Monitor delivery KPIs, execution plans, and overall project performance to ensure quality.

Skills

Mobile Core expertise

Java/J2EE

Linux

DBMS

Web technologies

Cloud/Virtualization

Kubernetes

Containers

SDN

Data analytics

Unix/Linux OS

Aerospike

MariaDB

Oracle

SQL

Networking protocols

3GPP/ETSI

VMware/OpenStack

Scripting/Automation

AI tooling

Education

Bachelor’s degree in computer science or related field

Job description

Job Description

Driving quality execution for our customers is critical for the long-term success of Nokia and customer satisfaction is the main measure of this objective. In this role, you will ensure the success of a Live Network Intervention by taking responsibility for the quality and accuracy of the LNI artifacts, procedures, scripts needed to execute the planned activities and supervise LNI execution.

Job Description

Driving quality execution for our customers is critical for the long-term success of Nokia and customer satisfaction is the main measure of this objective. In this role, you will ensure the success of a Live Network Intervention by taking responsibility for the quality and accuracy of the LNI artifacts, procedures, scripts needed to execute the planned activities and supervise LNI execution.

How You Will Contribute And What You Will Learn

• As a subject matter expert in the Delivery Assurance team, you will own and be accountable for all aspects of the LNI activity.
• You will accomplish this by leveraging your extensive Mobile Core expertise, best practices, and lessons learned. This role will require you to look across product domains and measure the impact and risks of LNI activities at a solution level.
• Review and approve LNI plans including data sources like CiQ, implementation procedures, scripts and other LNI artifacts prior to implementation on the customer network.
• Review and establish the Key Performance Indicators (KPI) that will be used to measure impacts to the network based on LNI work to be performed.
• Capture details of the review and as needed contribute findings to lessons learned and best practices.
• Execute (as needed ) & supervise the services delivery teams during the maintenance window and manage incidents during the activity.
• If needed, join/ lead troubleshooting group for specific Live Network intervention
• Contribute to Automation programs focused on LNI preparations and executions.
• Ensure high-quality project delivery by monitoring delivery KPIs, execution plans, and overall project performance.

Key Skills And Experience

You have

• Bachelor’s degree in computer science or a related field, with 10+ years of experience in architecting software, IT, or telecom solutions.
• Proven experience in defining architecture and delivering those solutions to the market.
• Extensive experience in telecommunications (4G/5GSA) with a deep understanding of Mobile Core network elements and technologies, their evolution, and the latest industry trends.
• Understanding of the interfaces and interactions between Mobile Core solution elements including 3rd parties.
• Hands-on experience with IMS Core functions: A-SBC, I-SBC CFX-5000, CNCS, NTAS, SMSF, ENUM, MRF and LIMS Competences on TCP/IP & main Protocols: Diameter (Gx-Rx-Sy)/ HTTP2/ SIP / Sigtran / SOAP-XML / SNMP.
• Competences in Java/J2EE, Linux, DBMS, web technologies, cloud/virtualization, Kubernetes, containers, SDN, and data analytics.
• Hands on experience of Unix/Linux OS’s & Databases (Aerospike/MariaDB/Oracle/SQL)
• Advanced competence of NW Architectures/Products & International standards: 3GPP/ETSI.
• Hands on Cloud experience (VNF, CNF) & related products (CBIS/CBAM – NCS/NCOM) or platform VMware/OpenStack.
• Ability to develop scripts / automation using AI tools as needed and high degree of proficiency in Kubernetes

Nice to have

• Ability to work independently, manage multiple projects simultaneously, and thrive in a fast-paced, dynamic work environment.
• Good Communication skills which shall enable appropriate articulation of Issues / risks and their mitigation