Senior 4G/5G RAN Test Engineer – LTE/NR Validation

TeleWorld Solutions; Plano (TX); On-site; USD 120,000 - 190,000; Full time

Job summary

Teleworld Solutions in Plano, Texas is seeking an experienced 4G/5G RAN Test Engineer III with 8 to 10+ years of wireless experience to join our engineering team. You will own validation, testing, and optimization of LTE and 5G RAN solutions, analyzing air interface performance and call processing.

You will leverage XCAL, QXDM, and Wireshark to troubleshoot network issues, develop robust test cases from 3GPP specs, and produce detailed reports for clients.

Qualifications

• 8–10+ years of professional engineering experience in wireless telecommunications, RF testing, or RAN validation.
• Strong understanding of LTE and 5G NR technologies, including Beamforming, MIMO, EN-DC, DL/UL Scheduling, and LTE Power Control.
• Deep technical knowledge of RAN architecture and wireless protocol stacks across PHY, MAC, RLC, RRC, and PDCP.
• Hands-on operational experience with professional wireless test and diagnostic tools (XCAL, QXDM, Wireshark, Channel Emulators).
• Proven ability to analyze protocols, debug complex network anomalies, and isolate root causes of performance degradation.
• Excellent technical report writing, documentation, and stakeholder presentation capabilities.
• Mandatory eligibility to work in Plano, Texas, United States.
• Bachelor’s Degree in Electrical Engineering (EE), Computer Science (CS), or a related technical discipline (Master’s preferred).

Responsibilities

• Execute feature, system, interoperability (IOT), and performance testing for advanced LTE and 5G RAN products and features.
• Analyze air interface performance, call processing workflows, and end-to-end network behavior across wireless testbeds.
• Develop and execute robust test cases and test scripts based on customer requirements and 3GPP telecommunications standards.
• Perform deep protocol analysis and root-cause troubleshooting across PHY, MAC, RLC, RRC, and PDCP protocol layers.
• Utilize advanced wireless test and diagnostic tools including XCAL, QXDM, Wireshark, Protocol Analyzers, and Spectrum Analyzers.
• Create detailed technical test reports, performance metrics summaries, and client-facing presentation deliverables.
• Support new product rollouts, software upgrades, element management systems (EMS), and Method of Procedure (MOP) verification.
• Collaborate with cross-functional R&D, product management, and systems engineering teams to optimize RAN performance.

Skills

LTE & 5G NR knowledge

RAN testing & validation

Protocol analysis

Root-cause troubleshooting

Technical report writing

Test planning & execution

Education

Bachelor's Degree in Electrical Engineering or Computer Science

Master's Degree (preferred)

Tools

XCAL

QXDM

Wireshark

Channel Emulators

Spectrum Analyzers

Job description

Teleworld Solutions in Plano, Texas is seeking an experienced 4G/5G RAN Test Engineer III with 8 to 10+ years of wireless experience to join our engineering team. You will own validation, testing, and optimization of LTE and 5G RAN solutions, analyzing air interface performance and call processing.

You will leverage XCAL, QXDM, and Wireshark to troubleshoot network issues, develop robust test cases from 3GPP specs, and produce detailed reports for clients.