Job Description
An IMS Core Test Engineer is responsible for validating and assuring the quality, performance, and reliability of IP Multimedia Subsystem (IMS) platforms used in telecom networks for services such as VoLTE, VoWiFi, SMS over IMS, Rich Communication Services (RCS), and multimedia communications.
Location Sydney
Key Responsibilities
Develop and execute IMS test strategies, test plans, and test cases.
Validate IMS core network elements such as:
CSCF (P-CSCF, I-CSCF, S-CSCF)
HSS/UDM
SBC
Test VoLTE, VoWiFi, emergency calling, roaming, and supplementary services.
Perform SIP signaling analysis and troubleshooting.
Execute interoperability testing with RAN, EPC/5GC, and handset vendors.
Conduct performance, load, regression, and end-to-end testing.
Analyze logs, traces, KPIs, and defects.
Required Technical Skills
Strong understanding of:




SIP, SDP, Diameter protocols
VoLTE and VoWiFi call flows
LTE, EPC, and 5G Core networks
Experience with testing tools such as:
Spirent
Keysight/Ixia
Wireshark
SIPp
Knowledge of Linux/Unix environments.
Test automation using Python, Shell scripting, or Robot Framework.
Defect management tools such as Jira and HP ALM.
Typical Experience for a Senior IMS Core Test Engineer
5–10+ years in telecom testing.
Experience with operator networks in Australia is preferred.
Solid exposure to VoLTE migrations, IMS upgrades, and 5G voice services.
Interested candidates can share their CVs ******
#J-*****-Ljbffr

📌 Ims Core Test Engineer (New South Wales)
🏢 CareCone Australia
📍 New South Wales