Care L2/Operations Engineer- Subscriber & Signalling

About the Role Role focuses on end-to-end L2/L3 operations for Subscriber and Signalling/SDM/SDL on Telco Cloud (4G/5G). The role involves troubleshooting complex subscriber and signalling issues, analyzing logs, performing RCA, and coordinating with engineering, deployment, and vendor teams to ensure service availability. What You'll Do

• Own end-to-end L2/L3 operations for Subscriber and Signalling/SDM/SDL solutions on Telco Cloud (4G/5G) platforms, ensuring service availability and stability.
• Lead advanced troubleshooting of complex subscriber and signalling issues using logs, alarms, KPIs, and protocol analysis tools such as Wireshark, ensuring resolution within SLA.
• Handle critical issues related to node reachability, FM/PM alarms, performance degradation, and service impact, and coordinate recovery actions during major incidents.
• Perform detailed Root Cause Analysis (RCA) for recurring and high-impact issues, propose corrective and preventive actions, and present reports to customers and internal stakeholders.
• Work extensively on Linux and cloud environments (VMware, OpenStack, OpenShift, Docker/Containers) to support troubleshooting, maintenance, and operational activities.
• Provide deep operational expertise on Subscriber & Signalling nodes such as AAA, One-NDS, SDL (Shared Data Layer), HLR/HSS, UDM/AUSF, SCP, STP, One-EIR, NPC, CSD, etc.
• Apply strong understanding of 4G and 5G call flows and subscriber signalling procedures while diagnosing and resolving customer-facing issues.
• Act as a technical escalation point for L1/L2 teams and collaborate closely with engineering, deployment, and vendor teams for complex problem resolution.
• Mentor and guide junior engineers, review their troubleshooting approach, and support skill development within the operations team.
• Drive operational improvements, including SOP updates, automation opportunities, and proactive monitoring strategies.
• Communicate effectively with customers and internal teams, providing clear status updates, incident communications, and technical explanations during normal operations and outages. What We're Looking For
• 4+ years of overall experience, with a minimum of 2 years in the Subscriber & Signalling domain.
• Strong communication, team handling, analytical, and presentation skills.
• Prior knowledge in managing and troubleshooting Subscribers & Signalling/SDM Nodes on Telco Clouds.
• Proficiency in health checks and troubleshooting from logs and providing solutions within SLA.
• Experience resolving issues related to Node Reachability, FM/PM alarms, and KPI degradation; familiarity with Wireshark.
• Working experience in Linux, VMware, Docker/Containers, OpenStack, OpenShift; cloud environment understanding for S&S deployments.
• Deep understanding of Subscriber & Signalling Nodes (AAA, One-NDS, SDL, HLR/HSS, UDM/AUSF, SCP, STP, One-EIR, NPC, CSD, etc).
• Strong knowledge of 4G/5G call flows and subscriber signalling procedures.
• End-to-end understanding of Subscriber & Signalling domain; ability to maintain and troubleshoot nodes, perform logs RCA, and share reports within SLA.
• Technical escalation point for L1/L2 teams; collaboration with engineering, deployment, and vendor teams.
• Ability to mentor junior engineers and drive operational improvements, SOP updates, automation, and proactive monitoring.
• Excellent communication with customers and internal teams during normal operations and outages.