Domain Support Specialist

Ericsson GmbH; Dadri; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

Ericsson Noida is seeking a skilled L2 Network Operations Engineer to support Sandvine-based policy control and DPI in a 24/7 managed services setting. You will troubleshoot Diameter, RADIUS, and 3G/4G/5G packet core interactions, while ensuring subscriber quality and policy enforcement.

Strong Linux, Wireshark, and database skills are required, with ITIL-aligned incident handling. The role emphasizes cross-functional collaboration with NOC and engineering teams, and offers exposure to Dynatrace

Qualifications

• Hands-on experience with Sandvine TSP and policy control mechanisms.
• Strong knowledge of Diameter, RADIUS, Gx, and Gy.
• Understanding of PCEF, PGW, EPG, and 3G/4G/5G packet core architectures and call flows.
• Experience in DPI, traffic management, and traffic shaping.
• Working knowledge of Linux, Wireshark, TCPDump, PostgreSQL, and Vertica.
• Experience in NOC/telecom operations or managed services.

Responsibilities

• Provide L2 operational support for Sandvine TSP and policy control solutions.
• Monitor and troubleshoot incidents involving Diameter, RADIUS, Gx, and Gy interfaces.
• Analyze 3G/4G/5G core call flows and DPI-related issues.
• Perform traffic shaping and policy enforcement across networks.
• Configure subscriber mappings, quotas, and service plans using Sandvine GUI/CLI.
• Conduct packet-level troubleshooting with Wireshark and TCPDump.
• Monitor system performance using tools like Dynatrace; support PostgreSQL/Vertica operations.
• Manage incidents and ticket lifecycle per ITIL using Remedy/Helix or equivalent.
• Collaborate with NOC, engineering, and customers for timely resolution.
• Contribute to problem management, RCA, and knowledge base updates.
• Participate in back-office and critical incident support activities.

Skills

Sandvine TSP

Diameter

RADIUS

Gx/Gy

Packet core

DPI

Traffic shaping

Linux

Wireshark

TCPDump

PostgreSQL

Vertica

ITIL

Remedy/Helix

Tools

Sandvine GUI/CLI

Dynatrace

Job description

Join our Team

About the OpportunityWe are seeking a skilled and detail-oriented L2 Network Operations Engineer with hands‑on experience in Sandvine solutions, policy control, traffic management, and telecom packet core technologies. The role will support policy enforcement, network performance, and subscriber experience across 3G, 4G, and 5G environments within a 24/7 managed services operation.

What You Will Do

• Provide L2 operational support for Sandvine Traffic Steering Platform (TSP) and policy control solutions.
• Monitor, troubleshoot, and resolve incidents involving Diameter, RADIUS, Gx, and Gy interfaces.
• Analyze 3G/4G/5G packet core call flows involving PCEF, PGW, and EPG components.
• Perform Deep Packet Inspection (DPI), traffic analysis, traffic shaping, and policy enforcement.
• Configure subscriber mapping, quotas, policies, rules, and service plans using Sandvine GUI/CLI.
• Conduct packet-level troubleshooting using Wireshark, TCPDump, and network diagnostic tools.
• Monitor system performance using tools such as Dynatrace and support operational activities involving PostgreSQL and Vertica.
• Manage incidents, escalations, and ticket lifecycle in line with ITIL processes using Remedy/Helix or equivalent tools.
• Collaborate with NOC, engineering, operations, customers, and other stakeholders for timely resolution.
• Contribute to problem management, RCA, knowledge management, documentation, and continuous service improvement.
• Participate in back-office and managed services activities, including operational handovers and critical incident support.

What You Will Bring

• Hands‑on experience with Sandvine TSP and policy control mechanisms.
• Strong knowledge of Diameter, RADIUS, Gx, and Gy.
• Good understanding of PCEF, PGW, EPG, and3G/4G/5G packet core architectures and call flows.
• Practical experience in DPI, traffic management, and traffic shaping.
• Working knowledge of Linux, Wireshark, TCPDump, PostgreSQL, and Vertica.
• Experience in NOC, telecom/network operations, or managed services environments.
• Knowledge of ITIL Incident, Problem, and Change Management.
• Strong analytical, troubleshooting, problem‑solving, and communication skills.Proven ability to manage customer/stakeholder interactions professionally.

Preferred Qualifications

• Experience with Dynatrace or similar monitoring tools.
• Exposure to telecom operator/service provider networks and 24/7 critical incident management.
• Familiarity with service assurance, policy & charging control, and subscriber management platforms.

Core Competencies

• Strong ownership, accountability, customer focus, collaboration, attention to detail, and operational excellence, with the ability to work effectively under pressure and in a structured, process-driven environment.

Why join Ericsson?

At Ericsson, you´ll have an outstanding opportunity. The chance to use your skills and imagination to push the boundaries of what´s possible. To build solutions never seen before to some of the world’s toughest problems. You´ll be challenged, but you won’t be alone. You´ll be joining a team of diverse innovators, all driven to go beyond the status quo to craft what comes next.

Encouraging a diverse and inclusive organization is core to our values at Ericsson, that’s why we champion it in everything we do. We truly believe that by collaborating with people with different experiences we drive innovation, which is essential for our future growth. We encourage people from all backgrounds to apply and realize their full potential as part of our Ericsson team. Ericsson is proud to be an Equal Opportunity Employer. learnmore.

Primary country and city: India (IN) || Noida