Core Operations Engineer

Join our Team

Join Ericsson’s Network Operations Centre (NOC) Back Office team and help deliver reliable, high-performing mobile core and IP network services. You will provide deep technical expertise, lead complex investigations, support customers, and improve operational performance, processes, and service quality.

You will

• Provide technical support across packet-core, IP, security, and infrastructure environments.
• Investigate and resolve complex hardware, software, performance, and service issues in live networks.
• Lead incident investigations with customers, system design, support, front-office, project, and field teams.
• Prepare and validate implementation proposals, corrective actions, system changes, and preventive maintenance activities.
• Represent Ericsson in technical customer meetings and contribute to network-performance improvements.
• Support service, incident, customer, project, process, security, audit, and operational reporting activities.
• Coach less-experienced engineers and promote consistent operational practices.
• Prioritize work and make timely decisions that protect service quality, availability, and SLA commitments.
• Participate in emergency call-out and 24x7 support rotations as required.

To be successful in this role, you must have

• A degree or equivalent experience in telecommunications, information technology, computer engineering, or a related field.
• At least five years of experience in telecommunications, IT operations, network engineering, or a similar environment.
• Strong knowledge of LTE and dual-mode core networks, packet-core elements, signaling, and network topology.
• Understanding of LTE protocols, including IP, S1AP, SCTP, GTP, Diameter, LDAP, and SOAP.
• Strong TCP/IP and routing knowledge, including MPLS, OSPF, BGP, IS-IS, EVPN, GRE, VRRP, and QoS.
• Experience troubleshooting routers, switches, firewalls, load balancers, and Linux-based systems.
• Excellent knowledge of Kubernetes architecture and operations in a core-network environment.
• Experience with Cisco technologies; knowledge of Juniper, Ericsson-Redback, F5, Wireshark, or MRTG is an advantage.
• Proven complex-problem-solving ability and strong written and spoken English communication skills.
• Customer focus, analytical thinking, planning, collaboration, and the ability to perform under pressure.
• Willingness to work shifts, on-call assignments, and other hours required by the operation.

Leadership and operational excellence

• Demonstrates deep technical expertise and guides teams through complex issues.
• Communicates clearly with engineers, management, and customers.
• Builds team capability through mentoring, constructive feedback, and development support.
• Makes timely, evidence-based decisions during incidents and operational challenges.
• Owns outcomes, manages priorities, and ensures service, quality, and SLA objectives are achieved.

Additional experience that would be an advantage

• Experience with Ericsson core-network solutions, Mini-Link TN, LTE/5G eNodeB or gNodeB environments.
• Knowledge of TCP/IP WAN configuration, capacity planning, and managed-services operations.
• Scripting or programming experience in Unix shell, Perl, C++, or Visual Basic.

What happens once you apply?Click Here to find all you need to know about what our typical hiring process looks like.We encourage you to consider applying to jobs where you might not meet all the criteria. We recognize that we all have transferrable skills, and we can support you with the skills that you need to develop.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. learn more.

Primary country and city: Australia (AU) || Sydney

Job details: Network Engineer

Job Stage: Job Stage 5

Primary Recruiter: Sushmita Centeno

Hiring Manager: Glenn Kent