Senior 5G Device & Protocol Engineer - Live Network Performance

Astir IT Solutions, Inc.

Bellevue, Northern (WA, KY)

Hybrid

USD 140,000 - 180,000

Full time

14 days+

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Job summary

Astir IT Solutions, Inc. in Bellevue, WA, seeks a contracted 5G Device & Protocol Engineer to apply hands-on LTE/5G NR performance analysis, VoNR/IMS call flows, and protocol troubleshooting for live networks.

Responsibilities include RCA, KPI automation, end-to-end troubleshooting across RRC, NAS, SIP, IMS, PDCP, RLC, HARQ, and validation in field environments using QXDM/QCAT and Wireshark.

Qualifications

Strong knowledge of 5G NR/LTE architecture and protocol stack.

Responsibilities

Analyze 5G NR/LTE network performance and RCA.

Skills

5G NR/LTE architecture

VoNR/IMS call flows

protocol debugging

KPI analysis

log analysis

QXDM/QCAT

Wireshark/PCAP

Python scripting

RRC/NAS/PDCP/RLC/HARQ

SIP/IMS protocols

KPI automation

Tools

QXDM

QCAT

Wireshark

PCAP

XCAL

XCAP

Job description

Responsibilities include RCA, KPI automation, end-to-end troubleshooting across RRC, NAS, SIP, IMS, PDCP, RLC, HARQ, and validation in field environments using QXDM/QCAT and Wireshark.

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