5G Device & Protocol Engineer

Astir IT Solutions, Inc.

South Plainfield, United States

23 days ago

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Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience level

Expert

Experience required

5 years minimum

Working hours

Regular working hours

Job source

www.dice.com

Tech stack

4G (Telecommunication) LTE (Telecommunication) Network Analysis Protocol Stack Network Congestion Software Debugging Python (Programming Language) Pcap Log Analysis Power BI SQL Databases Tableau (Software)

+6 more

Wireshark Scripting 5G NR Software Troubleshooting Low Latency E-UTRAN

Job description

Analyze 5G NR/LTE network performance and perform root-cause analysis (RCA).
Troubleshoot VoNR, VoWiFi, IMS, and SIP call flows end-to-end.
Perform protocol-level debugging across RRC, NAS, SIP, IMS, PDCP, RLC, and HARQ.
Analyze key performance indicators including DL/UL throughput, latency, jitter, packet loss, BLER, and MCS.
Perform log and trace analysis using QXDM, QCAT, Wireshark/PCAP, XCAL/XCAP, or similar tools.
Validate device and network performance in live-network and field environments.
Develop KPI reporting and automation using Python, SQL, Tableau, Power BI, or similar tools.
Identify network/device performance issues, conduct RCA, and provide recommendations for optimization.
Collaborate with device, modem, network, and engineering teams to resolve protocol and performance issues.

Requirements

We are seeking an experienced 5G Device & Protocol Engineer with strong hands-on expertise in LTE/5G NR performance analysis, VoNR/IMS call flows, protocol-level troubleshooting, KPI automation, and live-network validation., * Strong knowledge of 5G NR/LTE architecture and protocol stack.

Hands-on experience with VoNR, IMS, SIP, and end-to-end call-flow troubleshooting.
Strong experience in protocol debugging, KPI analysis, log analysis, and network RCA.
Experience with QXDM, QCAT, Wireshark/PCAP, XCAL/XCAP, or equivalent tools.
Strong understanding of RRC, NAS, PDCP, RLC, HARQ, SIP, and IMS protocols.
Experience with Python scripting/automation and network analytics.
Experience analyzing throughput, latency, BLER, MCS, packet loss, and other 4G/5G KPIs.
Strong troubleshooting, analytical, and communication skills.