Telephony Test Engineer - LTE/5G Protocols & Test Scripts

Yoh, A Day & Zimmermann Company; San Diego (CA); On-site; USD 55,000 - 62,000; Full time

Benefits offered by this job

Medical, Prescription, Dental & Vision

Health Savings Account (HSA)

Life & Disability Insurance

401K Retirement Savings Plan

Direct Deposit & weekly epayroll

Certification and training

Referral Bonus Programs

Payment for training

Job summary

Yoh, a Day & Zimmermann company, is seeking a Telephony Test Engineer focused on Android telephony, modem, and IMS testing. The role emphasizes LTE/3GPP protocol testing, test-script development, and log analysis using tools like QCAT and QXDM.

Ideal candidates have experience with MNO scripts and cert testing (GCF/PTCRB), strong fault triage skills, and familiarity with test equipment from Keysight, R&S, and Anritsu. This contract role pays $40–$45 per hour in California.

Qualifications

• Solid background in LTE and 3GPP protocol testing.
• Experience developing test scripts for 4G/5G networks.
• Strong skills in analyzing device logs and triaging failures.

Responsibilities

• Analyze telephony test results and triage issues across LTE/4G/5G.
• Develop and maintain test scripts for protocol testing on call boxes (Keysight, R&S, Anritsu).
• Collaborate with QA and test teams to reproduce and resolve defects.

Skills

LTE testing

3GPP protocol

Test script development

Log analysis

Call boxes experience

Tools

Keysight

R&S

Anritsu

QCAT

QXDM

ELT

Job description

Yoh, a Day & Zimmermann company, is seeking a Telephony Test Engineer focused on Android telephony, modem, and IMS testing. The role emphasizes LTE/3GPP protocol testing, test-script development, and log analysis using tools like QCAT and QXDM.

Ideal candidates have experience with MNO scripts and cert testing (GCF/PTCRB), strong fault triage skills, and familiarity with test equipment from Keysight, R&S, and Anritsu. This contract role pays $40–$45 per hour in California.