Launch Recruitment are supporting a well-established Australian organisation in the search for a Senior Infrastructure Engineer to take ownership of voice and communications systems.
This is a pivotal role for a seasoned infrastructure professional with deep expertise across both traditional and modern voice technologies.As the subject matter expert for all real-time communications platforms, you will lead the design, implementation and optimisation of business-critical systems The successful candidate will bring a strong blend of RF and IP-based communications knowledge, helping to drive reliability, scalability and innovation across the technology estate.
Key Responsibilities Act as the lead engineer for all voice and communications infrastructure across in-store environments.
Oversee end-to-end lifecycle management of CUCM, Zebra PTT, and Motorola radio systems.
Develop and implement the communications technology roadmap in line with operational needs.
Enhance platform security through authentication, encryption (SRTP), SSO and voice-focused cyber hardening.
Automate operational processes and MACDs using scripting and API integration (e.g., Cisco AXL).
Collaborate with networking teams to ensure QoS and network optimisation for real-time communications.
Produce high-quality technical documentation, solution designs, and support materials.
Essential Experience Minimum 5 years' experience in enterprise voice and unified communications engineering.
Expert-level knowledge of Cisco CUCM (v12.x+), Unity Connection, IM & Presence, and SIP.
Strong experience with Zebra Workforce Connect / PTT Pro or similar PTT-over-Wi-Fi tools.
Hands-on expertise in LMR/DMR systems (e.g., Motorola MOTOTRBO), including RF fundamentals and fleet management.
Deep understanding of enterprise networking principles — particularly VLANs, QoS (DSCP, CoS), and SIP/RTP/MGCP protocols.
Scripting experience (Python, PowerShell, Bash) with demonstrable automation of voice infrastructure tasks.
Experience integrating radio solutions with IoT systems is highly advantageous.
This role presents an excellent opportunity to join a forward-thinking infrastructure team, modernising communication tools to support customer-facing teams at scale.
If you're an experienced engineer passionate about bridging legacy and next-gen voice platforms, please apply for immediate consideration.