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We are seeking a skilled individual to oversee, support, and enhance IMS and CS Core network elements, ensuring high service availability and performance. This role involves incident resolution, proactive monitoring, configuration management, and collaboration with vendors and cross-functional teams. The individual will contribute to service reliability, performance optimisation, and seamless service introduction activity across the voice core domain.
Job Responsibility:
Support and manage IMS and CS Core network elements such as MTAS, CSCF, HSS, IPWorks, MSC, MGW, SBC, and STP
Safeguard service availability through maintenance, monitoring, and resolving incidents
Participate in a 24x7 on-call rotation to ensure timely support
Analyse service failures, conduct root cause analyses, and implement sustainable resolutions
Monitor KPIs, identify performance trends, and propose improvements to protect network availability
Perform regular health checks, resilience assessments, and proactive service assurance tasks
Configure new number ranges, support fraud barring requirements, and assist in isolating network nodes when needed
Support supplier and vendor management, SLA adherence, and audit preparations
Contribute to change management processes ensuring risk-free implementation of planned changes
Assist in software lifecycle management, including testing and rollout of new software versions
Promote knowledge sharing and provide guidance to less experienced team members
Communicate effectively with stakeholders, ensuring clarity in technical updates and issues
Requirements:
Skilled in IMS architecture (CSCF, MTAS, HSS, SBC) and CS Core network components (MSC, MGW)
Experienced in telecom protocols including SIP, Diameter, SS7, and SIGTRAN
Knowledgeable in VoLTE or VoNR call flows and IMS registration procedures
Comfortable working in virtualised environments such as VMware, OpenStack, and Linux OS
Able to apply troubleshooting skills using tools and scripting languages (Python or Bash preferred)
Adaptive, collaborative, and able to work effectively within a 24x7 operational environment
Holds experience working in multi-vendor environments (Ericsson, Huawei, Nokia)
Possesses a Bachelor’s degree in Telecommunications, Electronics, or Computer Engineering, with relevant certifications preferred
What we offer:
Opportunities to gain exposure to advanced IMS and CS Core technologies and multi-vendor environments
Experience collaborating with global teams and industry-leading partners
Engagement in innovative transformation initiatives across the telco domain
A supportive environment encouraging knowledge sharing, upskilling, and professional growth