Senior Network Engineer

Ericsson GmbH; Sydney; On-site; AUD 150,000 - 190,000; Full time

Job summary

Ericsson Australia is seeking a Senior Network Engineer to lead Core and EMS architecture across a large multi-vendor environment. You will drive design reviews, handovers to operations, and ensure stability with cloud-native core deployments.

You will mentor teams, advance security and lifecycle upgrades, and support presales for Core offerings. Strong hands-on with Cisco/Juniper IP cores, Kubernetes/OpenShift, Docker, and Ansible is required.

Qualifications

• Bachelor’s degree in Engineering or equivalent technical qualification.
• 10+ years in cellular networks, including 3+ years in 5G SA/NSA.
• 10+ years across telecom core operations, design, or architecture, ideally EPC/Cloud Native Core.

Responsibilities

• Lead as the technical authority for Core and EMS across new projects, from impact assessment and design reviews to acceptance and handover to operations.
• Create clear work instructions for Ericsson Dual Mode Core, including disaster recovery and orchestration of containerized network functions.
• Introduce and integrate new core network elements, cloud native capabilities, and lifecycle upgrades with delivery and project teams.
• Identify and implement network automation using Python, Shell, and Ansible to remove repetitive tasks.
• Provide 2nd level escalation support to Core, IP Transport, and OSS operations teams.
• Oversee security vulnerability management, certificate lifecycle, and monthly technical and installed base audits.

Skills

Core network

EMS

5G expertise

Python

Ansible

Bash/Shell

Automation

Education

Bachelor’s degree in Engineering

Tools

Cisco IP core

Juniper IP core

Kubernetes

OpenShift

Docker

Helm

Job description

Join our Team

About this role Join our Managed Services team supporting a Tier‑1 fixed wireless operator. As a Senior Network Engineer, you will be the subject matter expert for Cloud Native Core and Element Management Systems, driving integration, stability, and continuous improvement across a large‑scale, multi‑vendor environment. The work spans design, delivery, automation, and operational excellence.

What you will do

• Lead as the technical authority for Core and EMS across new projects, from impact assessment and design reviews to acceptance and handover to operations
• Create clear work instructions for Ericsson Dual Mode Core, including disaster recovery and orchestration of containerized network functions
• Introduce and integrate new core network elements, cloud native capabilities, and lifecycle upgrades in partnership with delivery and project teams
• Identify and implement network automation using Python, Shell, and Ansible to remove repetitive tasks and enable autonomous operations
• Provide 2nd level escalation support to Core, IP Transport, and OSS operations teams
• Oversee security vulnerability management, certificate lifecycle, and monthly technical and installed base audits
• Share knowledge and mentor operational teams to uplift capability
• Support end‑to‑end presales for Core portfolio offerings with the local Managed Services team
• Review and approve Methods of Procedure for test and production environments
• Execute network changes, software upgrades, and updates on core network elements when required
• Maintain deep knowledge of core network elements, solution architecture, and EMS platforms
• Investigate and resolve northbound interface and statistical file integration issues
• Maintain a clear view of end‑to‑end topology and interworking across network elements
• Facilitate the introduction of new products, software, applications, and services
• Run quarterly network‑wide parameter audits to ensure consistency

What you will bring

• Bachelor’s degree in Engineering or equivalent technical qualification
• 10+ years in cellular networks, including at least 3 years in 5G SA or NSA
• 10+ years across telecom core operations, design, or architecture, ideally in EPC, Cloud Native Core, or IP MPBN environments
• Strong hands‑on experience with Ericsson Core Network products and EMS
• Proven delivery across managed services, network modernization, integration, or solution architecture programs
• Solid experience with Cisco and Juniper IP core infrastructure
• Deep knowledge of MPLS, BGP, OSPF, and Segment Routing, including SR‑MPLS or SRv6
• Proficiency in Python, Bash or Shell, and Ansible for automation
• Experience with cloud‑native core deployments, for example Kubernetes, OpenShift, Helm, Docker
• Good knowledge of UNIX and Windows server platforms, preferably at admin level
• Strong understanding of IP networking, security, and telecom networks

Why join Ericsson?

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.

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

Req ID: 788665