Job Description

 Job Description

Role: Care L2/Operations Engineer- Subscriber & Signalling

Job Details: We are primarily looking for a resource with prior knowledge in managing and

troubleshooting Subscribers & Signalling/SDM Nodes on Telco Clouds.

Skills:

Technical

• Perform health checks and troubleshooting from the logs captured and provide solutions within the SLA
• Should have exp. in resolving different issues related to Node Reachability, FM/PM and other KPI's.
• Should understand troubleshooting tools like Wireshark etc.
• Good working experience in Linux, VMWare, Dockers & Containers, OpenStack, OpenShift
• Should understand the Cloud environment and understanding of how S&S solution/Nodes are deployed on cloud.

Domain:

• Working knowledge on Subscriber & Signalling Nodes like -AAA, One NDS, SDL (Shared Data Layer), Registers (HLR/HSS, UDM/AUSF), One-EIR, SCP, CSD, STP, U-DRA, NPC, EIR etc.
• Should have deep knowledge of 4G and 5G call flows- Candidate should have end to end understanding of Subscriber & Signalling domain
• Candidate should have prior experience in Maintaining and troubleshooting Subscriber and Signalling nodes, Analyse the logs, performing RCA and share Reports within the agreed SLA.

Roles & Responsibilities

• 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.

Relevant Experience

• 5+ years of overall experience, with a minimum of 2 years in the Subscriber & Signalling domain
• Strong communication, team handling, analytical, and presentation skills