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ektello • Berkeley Heights, New Jersey, United States
Role & seniority: Mobile Field Network Tester, entry-level (0–2 years).
Stack/tools: 4G/5G (LTE/NR) knowledge; field testing tools: QXDM, QCAT, TEMS, Nemo (or similar); KPI analysis (RSRP, SINR, CQI, throughput).
Conduct field and lab testing across 4G/5G, VoLTE, and NR; perform drive tests to assess coverage, throughput, latency, mobility, and call performance.
Capture, analyze, troubleshoot, and document issues from labs, field sites, and live networks; analyze performance KPIs and recommend RAN improvements.
Support software/firmware evaluations; document results and produce reports; collaborate with cross-functional teams (dev, QA, carriers, field engineers) and provide technical input during pre-sales/technical evaluations.
Bachelor’s degree in CS or related field
0–2 years in field network testing, mobile QA, or telecom engineering
Strong analytical, problem-solving, and communication skills
Ability to work independently in a fast-paced environment
Solid understanding of LTE/NR architecture (RAN, Core, IMS) and air interface protocols
Experience with field testing tools (QXDM, QCAT, TEMS, Nemo)
Familiarity with KPIs (RSRP, SINR, CQI, throughput) and safety requirements
Coding experience (Python or SQL)
Ability to communicate in Korean (not required)
Location & work type: Location not specified; work type is field testing (on-site drive tests, field equ
The Mobile Field Network Tester is responsible for validating mobile device and network performance in live 4G/5G environments. This role focuses on testing wireless connectivity, call processing, and data performance across various network configurations and geographic locations. You will execute drive tests, analyze logs, and evaluate RAN and air interface protocols to ensure reliable device performance and an optimal user experience.
All work must be performed in strict compliance with safety protocols and field operation guidelines.
Key Responsibilities
Translate customer and project requirements into system and field test requirements
Perform field and lab testing for mobile devices and network features across 4G/5G, VoLTE, and NR technologies
Conduct drive tests to evaluate coverage, throughput, latency, mobility, and call performance
Capture, analyze, troubleshoot, and document issues from labs, field sites, and live network environments
Analyze performance KPIs and recommend improvements to RAN network performance
Support evaluation of new software and firmware releases
Document test results and prepare reports using tools such as QXDM, QCAT, TEMS, Nemo, or similar
Collaborate with cross-functional teams including development, QA, carrier partners, and field engineers
Provide technical feedback during pre-sales or technical evaluation phases as needed
Follow all safety procedures when operating vehicles and field testing equipment
Required Skills & Qualifications
Bachelor’s degree in Computer Science or a related field
0–2 years of experience in field network testing, mobile QA, or telecom engineering
Strong analytical, problem-solving, and communication skills
Ability to work independently, manage time effectively, and adapt in a fast-paced environment
Solid understanding of LTE/NR network architecture (RAN, Core, IMS)
Knowledge of 4G/5G air interface protocols, signaling, and call processing
Hands-on experience or exposure to field testing tools (QXDM, QCAT, TEMS, Nemo, or similar)
Familiarity with KPIs such as RSRP, SINR, CQI, and throughput
Strong safety awareness and responsible equipment handling
Nice to Have
Coding experience with Python or SQL
Ability to communicate in Korean (not required)