Senior Network Engineer- Sydney, New South Wales, Australia

Axiom Technologies; Sydney; On-site; AUD 140,000 - 180,000; Full time

Job summary

Axiom Technologies in Australia is seeking a Senior Network Engineer to own the design, migration, and lifecycle management of a large multi-site network. You will lead target-state designs, assess current environments and drive changes through CAB with strong Cisco routing and switching expertise.

The ideal candidate will have hands-on experience with Cisco IOS and IOS-XE, develop migration strategies, and ensure resilience, capacity planning and cost optimization across the network.

Qualifications

• 6+ years of hands-on network engineering experience with ownership of assessment, design, change and implementation.
• Strong experience with Cisco IOS and IOS-XE.
• Proven ability to design target-state networks for consolidation, migration and retirement.
• Experience in ITIL/change-management processes and CAB presentations.
• Excellent communication and ability to work with multiple stakeholders.
• Experience in large enterprise, service-provider, or multi-site networks.

Responsibilities

• Assess and optimize multi-site network infrastructure and dependencies.
• Develop target-state network designs and migration strategies.
• Lead end-to-end network changes through change-management and CAB.
• Document high/low level designs, diagrams and implementation plans.
• Mentor engineers and coordinate with field teams and third parties.
• Troubleshoot routing, switching, WAN/LAN, and network management services.

Skills

Network design

Change management

Troubleshooting

Stakeholder communication

Legacy networks

Python automation

Vendor coordination

Education

CCNP certification

Tools

Python

Ansible

Job description

Axiom Technologies is an Australia-based entity with a history of providing Managed IT solutions to medium- to large-scale enterprises globally. Please visit our website for more information about what we do at www.axiomtechnologies.com

We are looking for an experiencedSenior Network Engineerto join our team and take ownership of the design, optimisation, migration, implementation and lifecycle management of a large, multi-site network environment.

The ideal candidate will have strong hands-on expertise inCisco routing and switching, combined with experience managing complex, legacy and poorly documented network environments. You will be responsible for taking initiatives fromcurrent-state assessment and target-state design through change approval, implementation, validation and closure.

This is a hands-on engineering role that requires strong technical judgement, structured problem-solving and the ability to deliver safe, resilient changes across business-critical networks.

Key Responsibilities

• Assess existing network infrastructure, services, traffic patterns, utilisation and dependencies across multiple sites.
• Analyse existing network architecture and make recommendations toretain, consolidate, scale down, migrate, refresh or retireinfrastructure.
• Develop target-state network designs and detailed migration strategies, considering:
  • Network resilience and availability
  • Capacity and performance
  • Connectivity and routing
  • Management and out-of-band access
  • Operational and business impact
• Validate technical requirements, assumptions and dependencies with platform owners, service owners, project managers and other stakeholders.
• Produce high-quality technical documentation, including:
  • High-Level and Low-Level Designs
  • Network diagrams
  • Implementation plans
  • Risk and impact assessments
  • Validation/test plans
  • Rollback and backout procedures
• Own network changes end-to-end through thechange-management and CAB process.
• Perform hands-on configuration, troubleshooting and implementation of:
  • Routing and switching
  • WAN/LAN connectivity
  • VLANs and trunking
  • Routing protocols
  • Network management and access services
• Lead or support the migration and retirement of legacy technologies, includingX.25, serial connectivity, terminal servers and console servers.
• Coordinate implementation activities with field engineers, remote-hands teams, network carriers and third-party service providers.
• Ensure all operational records are accurately maintained, including:
  • IPAM
  • DNS
  • AAA
  • SNMP/syslog/NTP
  • CMDB
  • Asset records
  • Circuit and connectivity records
• Monitor implementation progress and provide senior-level technical escalation and troubleshooting support during critical changes.
• Analyse network configurations, traffic flows, monitoring data, logs and packet captures to identify root causes and design improvements.
• Identify opportunities to simplify network architecture, reduce technical debt, improve resilience and optimise operational costs.
• Provide technical guidance and mentoring to network engineers and implementation teams.

Required Technical Experience

• 6+ years of hands-on network engineering experience, with proven ownership of assessment, design, change and implementation activities.
• Strong hands‑on experience withCisco IOS and IOS‑XE.
• Strong understanding and troubleshooting experience with:
  • OSPF
  • BGP
  • Static Routing
  • VRFs
  • VLANs
  • 802.1Q Trunking
  • Spanning Tree Protocol
  • First-Hop Redundancy Protocols
• Proven experience developingtarget-state network designs and migration strategiesfor consolidation, scale-down, refresh, migration and infrastructure retirement.
• Strong understanding of network resilience, capacity planning, service dependencies and business impact.
• Experience working withlegacy and end‑of‑life network technologies, particularly:
  • X.25
  • Serial connectivity
  • Terminal servers
  • Console servers
• Good knowledge of network management and out‑of‑band access technologies, including:
  • SNMP
  • Syslog
  • NTP
  • TACACS+
  • RADIUS
  • ACLs
  • Jump hosts
• Strong troubleshooting skills, including the ability to analyse:
  • Network configurations
  • Traffic flows
  • Logs
  • Monitoring alerts
  • Packet captures
• Strong experience withITIL/change‑management processes, including impact assessment, implementation planning, rollback planning and CAB presentations.
• Understanding of physical network infrastructure, includingcabling, patching, circuits, rack infrastructure and carrier connectivity.
• Experience using network monitoring, documentation, diagramming,IPAM and CMDBtools.
• Excellent stakeholder communication, technical decision‑making and risk‑management skills.
• Experience working in alarge enterprise, service‑provider, carrier or multi‑site network environment.
• CCNP certificationor equivalent hands‑on technical expertise.
• Network automation experience usingPython, Ansible or similar technologies.
• Migration projects
• Refresh programmes
• Technical‑debt reduction initiatives
• Experience managing network circuits and working directly withthird‑party carriers and service providers.
• ITIL andServiceNowexperience.
• Exposure to related technologies such as:
  • Firewalls
  • DDI (DNS, DHCP, IPAM)
  • NAC
  • Network automation
  • Enterprise monitoring platforms

The successful candidate will demonstrate:

• Strong analytical and problem‑solving ability.
• Excellent understanding of enterprise network architecture.
• Confidence working incomplex, undocumented or legacy environments.
• Strong technical ownership and accountability.
• Ability to make sound engineering decisions while balancingrisk, cost, resilience and business impact.
• Excellent written and verbal communication skills.
• Ability to work effectively with technical and non-technical stakeholders.
• Ability to work independently while coordinating multiple technical teams and third parties.
• A proactive approach to identifying network improvements and reducing technical debt.