Core Support Engineer

About the role

Ericsson is seeking a Core Support Engineer to provide technical service and support to its customers. You will troubleshoot and resolve problems to stabilize and optimise customer networks, working with a range of telecom and datacom hardware, software and network solutions.

Key responsibilities

• Handle customer issues as dedicated support, 24x7 based on roster
• Lead and resolve technical issues and conduct Root Cause Analysis
• Manage software updates and load IPA/EPA/EP packages on Ericsson core nodes
• Drive CSR review meetings with Service Delivery Managers
• Perform preventive maintenance and MOP preparation with impact analysis

Required profile

• Bachelor’s degree in engineering
• 5+ years of experience in CS Core domain
• Hands‑on experience with MSC‑S, M‑MGW, STP/IP‑STP, CSCF, MTAS, SBG/BGFU, CUDB, HSS‑FE, HLR‑FE, EIR‑FE
• Strong understanding of mobile call flows and protocols (MAP, SCCP, SIP, Diameter, LDAP)
• Experience with IMS/VoLTE, SRVCC and CS fallback procedures
• Knowledge of cloud/virtualisation, VNF/CNF management

Required skills

• Software Update Management (SUM)
• Loading IPA/EPA/EP packages
• Root Cause Analysis
• Preventive maintenance
• Cloud and virtualisation concepts
• VNF/CNF management

What we offer

• Opportunity to work with a global leader in telecom technology
• Exposure to cutting‑edge network solutions and a diverse international environment
• Continuous learning and professional development