Subject Matter Expert - IMS

Subject Matter Expert - IMS

India

(Onsite)

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.

Your responsibilities

• 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.

Your skills and experience

You have

• Bachelor’s degree in computer science or a related field, with 7+ 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

At Nokia, we want every candidate to be able to perform their best. If you need any adjustments or support during the recruitment process, please let us know. All requests are treated confidentially.

Job Info

Job Category Customer Services

Posting Date 10/07/2026

Degree Level Bachelor’s degree

Job Schedule Full time

Job Type Experienced

Job Identification 41006

Will NSA/CAPS approval be required? (E.g., accessing a US Customer Network?) Yes

Role Type Individual contributor

Laptop - support with ordering needed Yes

Experience level Experienced

Locations

B9, Green Boulevard, Sector 62, Noida, Uttar Pradesh, 201301, IN

Manyata Embassy Business Park, Bangalore, Karnataka, 560045, IN

(Onsite)

Regular or Temporary Regular