Senior Cisco Telephony & Network Engineer

Leaders; Sydney; On-site; AUD 140,000 - 190,000; Full time

Job summary

Leaders IT in Sydney seeks a Senior Cisco Telephony & Network Engineer to design, implement, and support enterprise voice and unified communications solutions. You will ensure high-performance voice quality, reliability, and seamless integration with core network environments, supporting both BAU and project delivery.

The role requires extensive Cisco UC and networking expertise, with responsibilities spanning design, deployment, troubleshooting, and documentation in a large enterprise setting.

Qualifications

• Extensive experience with Cisco Collaboration platforms (CUCM, Unity Connection, UCCX/UCCE, Webex Calling).
• Strong knowledge of Cisco networking (Catalyst, VXLAN/EVPN) and wireless infra.
• Proven expertise managing SIP trunks, dial plans, gateways, and enterprise voice configurations.
• Familiarity with Cisco licensing models and collaboration migration projects; certifications desirable.

Responsibilities

• Design, deploy, and support Cisco Unified Communications and VoIP environments.
• Administer voice platforms, call routing, dial plans, and system upgrades.
• Monitor and troubleshoot voice quality, connectivity, and network performance.
• Maintain telephony and core network documentation; support incident management and service improvements.

Skills

CUCM

Unity Connection

UCCX/UCCE

Webex Calling

VXLAN/EVPN

Cisco Collaboration

Job description

Senior Cisco Telephony & Network Engineer

About the Company: Our client is a large Australian organisation that is a leader in their field. The work culture is collaborative and supportive of each other. They look after their people and provide some of the best benefits, workspaces, and facilities in the industry.

About the Role: Seeking a Cisco Telephony & Network Engineer to design, implement, and support enterprise voice and unified communications solutions. Responsibilities include BAU support, project delivery, and optimisation of Cisco Collaboration and core network environments, including Catalyst, VXLAN/EVPN, and wireless technologies, ensuring high-performance voice quality, connectivity, and network reliability.

Responsibilities

• Design, deploy, and support Cisco Unified Communications and VoIP environments
• Administer Cisco voice platforms, call routing, dial plans, and system upgrades
• Monitor and troubleshoot voice quality, connectivity, and network performance issues
• Maintain telephony, call flow, and core network technical documentation
• Support incident management, root cause analysis, and service improvement initiatives

Skills and Experience

• Extensive experience with Cisco Collaboration platforms, including CUCM, Unity Connection, UCCX/UCCE, and Webex Calling
• Strong knowledge of Cisco networking technologies, including Catalyst switching, VXLAN EVPN, and wireless infrastructure
• Proven expertise managing SIP trunks, dial plans, gateways, and enterprise voice configurations
• Familiarity with Cisco licensing models, subscription management, and collaboration migration projects
• Cisco certifications desirable, with ability to manage BAU and project priorities in enterprise environments

Peoplebank and Leaders IT are committed to creating a diverse and inclusive workplace where everyone belongs. We welcome applications from people of all backgrounds, identities, and experiences. If you need adjustments to the recruitment process due to your circumstances, please let us know—we’re here to support you.