CS core

We are seeking an experienced CS Core Engineer to join a major telecommunications project in Saudi Arabia on a 12-month renewable contract
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The successful candidate will be responsible for the operation, maintenance, configuration, troubleshooting and performance of Core network infrastructure, working closely with network engineering and operational teams to maintain network reliability and service quality.

• Perform daily O&M across MSC, MGW, HLR, IPSTP, HSS, UDC, DSC/EIR/PG/UPG, CCDM, CCRC, CCSM, CCES, SC, EDA2 and NeLS.
• Troubleshoot network faults and support Core network performance optimisation.
• Manage, implement and verify configurations across Core nodes.
• Analyse and maintain Core component performance.
• Perform software updates and patch management.
• Develop maintenance schedules to minimise downtime and service disruption.
• Collaborate with network engineering teams on network performance and reliability.
• Document incidents and technical resolutions.
• Participate in network design discussions.
• Ensure 5GC nodes comply with required security protocols and regulatory requirements.
• Conduct configuration and compliance audits.
• Provide technical support and guidance to Field Engineers and Front Office teams.
• Perform E2E protocol/interface analysis and troubleshooting.

• Bachelor's degree in Telecommunications, Electrical Engineering or a related IT field.
• Proven Core network operations and maintenance experience.
• Experience with vHSS/vHLR, UDC, DSC/EIR/PG/vUPG, CCDM, CCRC, CCSM, SC, EDA2 and NeLS.
• Strong knowledge of MSS, CPP, UDM and 5G Core technologies.
• Knowledge of EPC, 5GC and NFV.
• Strong protocol analysis and E2E troubleshooting capabilities.
• Experience with network management tools and software.
• Relevant UDM/5G Core certification.
• Strong analytical and problem-solving skills.
• Good stakeholder communication and teamwork skills.

Experience with scripting or programming for network automation would be beneficial.