ROLE & RESPONSIBILITIES:

• Responsible for the day-to-day operation and support in one specific IMS domain.
• Provide Level 2 support for Nokia products, troubleshooting and resolving technical issues related
to Diameter, VOLTE, SIP, and other associated protocols.
• Manage and resolve complex customer issues escalated from the Monitoring support team.
• Monitor and troubleshoot voice and messaging related incidents to identify the root cause and
ensure swift and effective resolution.
• Perform regular technical analysis to ensure the optimization and quality of the services.
• Collaborate with internal teams, partners, and vendors to resolve escalated technical issues and
implement corrective actions.
• Conduct testing and verification of any implemented changes in configurations to ensure they
meet regulatory and service requirements.
• Generate reports, analyse service/operational KPIs, and contribute to the improvement of
processes and procedures.
• Document and maintain detailed records of all support activities, including resolutions,
troubleshooting steps, and partner interactions.
• Change implementation.
• Handle communications with other domains.
• Build knowledge and manage daily operation activities to high efficiency.
• Collaborate with our Partners and internal stakeholders to identify issue and fixes incidents within the agreed service SLA.
• Be part of an on-call shift rotation pool.
• Availability to work occasionally during nights and weekends to provide support for urgent issues
or scheduled maintenance.

REQUIRED SKILLS, AND EXPERIENCE:

Bachelor’s degree in Telecommunications, Engineering, or a related field.

5+ years of experience in mobile core network operations / Planning.

Deep understanding of mobile network related protocols and technologies such as SS7, Diameter,
GTP, MAP, SIP, RTP, IP-based protocols.

Strong technical knowledge on VoIP, LTE, VoLTE/IMS, including core network elements andarchitecture.

Hands on in one of the below domains or 3 products or more from below Nokia products:
• IMS Core: Nokia TAS, Nokia ASBC, CFX (CSCF).
• Ribbon: GSX 9000, PSX, I-SBC, SGX 4000.
• SDM: MSS, One-MNP , Nokia HSS,SDL ,One-EIR ,HSM , Nokia AAA, Mmtel, NetNumber
TITAN.
• DSI: SPS PCRF – OCS, NPC, NCC, Flowone, Data Refinery, NWR, CSD.
• OSS: NetAct, Zabbix, DSI.
• Other: NLS, CBAM, Radisys MRF, TelesySTP, CMREPO, NGIN, Oracle CHF/PCF.

Experience with monitoring tools, troubleshooting techniques, and performance analysis.

Excellent analytical and problem-solving skills with a focus on delivering high-quality results.

Strong communication and interpersonal skills to collaborate effectively with internal and external stakeholders.

Ability to work under pressure and prioritize tasks in a fast-paced and dynamic environment.

Familiarity with trace reading and troubleshooting.

Working experience on Openstack or Kubernetes.