Staff Telephony Test Engineer

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

Job Description

Telephony Test Engineer
Looking for a test engineer/tech focused on telephony. Specifically focused on Android telephony, Modem, and IMS Testing.

Required:

• Solid background in LTE, 3GPP protocol, 4G/5G test script development using protocol call boxes like Keysight, R&S, Anritsu, or similar.
• Experience with device logs analysis tools such as QCAT, QXDM, ELT, etc.
• Cellular device cert testing experience - MNO scripts, GCF PTCRB, etc.
• Strong background in analyzing failure logs and triaging the issues.
• Experience with call boxes such as – Anritsu, Keysight, Rhode & Shwartz (R&S), or similar.

Pluses:

• Sniffers and Wireshark experience.
• Ability to figure out customer's technical requirements & create test scripts on call boxes.

Estimated Min Rate : $40.00
Estimated Max Rate : $45.00/hr. Depends on work experience.

What’s In It for You?

We welcome you to be a part of the largest and legendary global staffing companies to meet your career aspirations. Yoh’s network of client companies has been employing professionals like you for over 65 years in the U.S., UK and Canada. Join Yoh’s extensive talent community that will provide you with access to Yoh’s vast network of opportunities and gain access to this exclusive opportunity available to you. Benefit eligibility is in accordance with applicable laws and client requirements. Benefits include:

• Medical, Prescription, Dental & Vision Benefits (for employees working 20+ hours per week)
• Health Savings Account (HSA) (for employees working 20+ hours per week)
• Life & Disability Insurance (for employees working 20+ hours per week)
• MetLife Voluntary Benefits
• Employee Assistance Program (EAP)
• 401K Retirement Savings Plan
• Direct Deposit & weekly epayroll
• Referral Bonus Programs
• Certification and training opportunities

Note: Any pay ranges displayed are estimations. Actual pay is determined by an applicant's experience, technical expertise, and other qualifications as listed in the job description. All qualified applicants are welcome to apply.

Yoh, a Day & Zimmermann company, is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Visit https://www.yoh.com/applicants -with-disabilities to contact us if you are an individual with a disability and require accommodation in the application process.

For California applicants, qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. All of the material job duties described in this posting are job duties for which a criminal history may have a direct, adverse, and negative relationship potentially resulting in the withdrawal of a conditional offer of employment.

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

By applying and submitting your resume, you authorize Yoh to review and reformat your resume to meet Yoh’s hiring clients’ preferences. To learn more about Yoh’s privacy practices, please see our Candidate Privacy Notice: https://www.yoh.com/privacy -notice

Stay Safe During Your Job Search
Fraudulent recruiting communications have become increasingly common. Emails from Yoh recruiters will only come from an @yoh.com email address. Yoh will never ask candidates to pay fees, purchase equipment, send gift cards, or transfer funds as part of the recruiting or hiring process. If you receive a communication that appears suspicious or requests payment, contact Yoh directly before responding or sharing personal information.

Company Description

Yoh delivers expertise, methodology, and momentum to keep work moving forward. From strategy to execution, we deliver bold ideas and big results through consulting, staffing, and enterprise solutions. Nearly a century after our founding, Yoh remains STEM-centered, collaborative, and committed to client success. Yoh is a proud member of the Day & Zimmermann family of companies. Visit us at https://www.yoh.com/

Company Description

Yoh delivers expertise, methodology, and momentum to keep work moving forward. From strategy to execution, we deliver bold ideas and big results through consulting, staffing, and enterprise solutions. Nearly a century after our founding, Yoh remains STEM-centered, collaborative, and committed to client success. Yoh is a proud member of the Day & Zimmermann family of companies. Visit us at https://www.yoh.com/