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Cellular Test Engineer Jobs in California (NOW HIRING)

Snap, Inc.

RF Test Engineer

Los Angeles, CA · On-site

We're looking for a RF Test Engineer to join the Spectacles team! What you'll do: * Develop test ... Understanding the test methodology for wireless standards such as WiFi, Bluetooth, BLE, cellular ...

Snapchat

RF Test Engineer

Los Angeles, CA · On-site

We're looking for a RF Test Engineer to join the Spectacles team! What you'll do: * Develop test ... Understanding the test methodology for wireless standards such as WiFi, Bluetooth, BLE, cellular ...

Qualcomm

Modem Integration & Test Engineer

San Diego, CA · On-site

$89K - $133K/yr

Engineering Group, Engineering Group > Cellular System Test Engineering General Summary: As a member of the Modem SW Image Integration & Test (I&T) team, you will be responsible for the integration ...

Qualcomm

Modem Integration & Test Engineer

San Diego, CA · On-site

$89K - $133K/yr

Engineering Group, Engineering Group > Cellular System Test Engineering General Summary: As a member of the Modem SW Image Integration & Test (I&T) team, you will be responsible for the integration ...

Skylo

Senior System Test Engineer

Mountain View, CA · On-site

The engineer will be responsible for test planning, execution, and analysis to validate network ... Strong understanding of 3GPP cellular protocols (LTE/ 5G/ NBIOT-NTN), with a strong emphasis on RAN ...

CalAmp

Engineer I, Test

Carlsbad, CA · On-site

Currently, we are seeking an Engineer I, Test based in Carlsbad, CA. This is an exciting ... Experience with cellular modems, GPS technology, Wi‑Fi, and Bluetooth/BLE This position provides ...

Nutanix

Sr. Engineer, RF Test Development

San Diego, CA · On-site

$111K - $166K/yr

Job Area Engineering Group, Engineering Group > Hardware Engineering General Summary Scope of work ... Understanding of Test methodology for cellular standards. * Develop software using Java, C#, C ...

New

Qualcomm

Sr. Engineer, RF Test Development

San Diego, CA · On-site

$111K - $166K/yr

Job Area: Engineering Group, Engineering Group > Hardware Engineering General Summary: Scope of ... Understanding of Test methodology for cellular standards. * Develop software using Java, C#, C ...

Qualcomm

Sr. Engineer, RF Test Development

San Diego, CA · On-site

$111K - $166K/yr

Job Area Engineering Group, Engineering Group > Hardware Engineering General Summary Scope of work ... Understanding of Test methodology for cellular standards. * Develop software using Java, C#, C ...

Apple

Wireless System Automation and Test Engineer

Irvine, CA · On-site

$49.50 - $65.25/hr

Strong knowledge of wireless communication systems, with emphasis on WiFi; cellular technologies experience is a plus. Strong programming skills in Python, Shell scripting, and/or C/C++/C# for test ...

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All JobsCellular Test Engineer JobsCellular Test Engineer Jobs in California

Cellular Test Engineer information

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How much do cellular test engineer jobs pay per hour?

As of Sep 15, 2026, the average hourly pay for cellular test engineer in California is $43.66, according to ZipRecruiter salary data. Most workers in this role earn between $32.98 and $51.73 per hour, depending on experience, location, and employer.

What is a cellular test engineer?

Cellular Test Engineers are professionals who design, conduct, and analyze tests to ensure the quality and performance of cellular devices and networks. They work with mobile phones, modems, and network infrastructure to verify compliance with industry standards such as 3G, 4G, and 5G. Their job often involves troubleshooting, documenting test results, and collaborating with hardware and software teams to resolve issues and improve product reliability. Cellular Test Engineers play a critical role in the development and maintenance of wireless communication technologies.

What are some typical challenges a cellular test engineer might face when working with new network technologies?

Cellular Test Engineers often encounter challenges when validating and troubleshooting new network technologies like 5G or IoT protocols. These can include adapting to rapidly evolving standards, ensuring device compatibility across different carriers, and diagnosing complex issues that arise from interoperability between hardware and software. The role requires strong analytical skills and a proactive approach to learning, as well as effective communication with cross-functional teams such as hardware, software, and network operations to resolve issues efficiently. Staying up-to-date with industry developments is essential to succeed in this dynamic environment.

What are the key skills and qualifications needed to thrive as a cellular test engineer, and why are they important?

To thrive as a Cellular Test Engineer, you need a solid understanding of wireless communication principles, RF testing, and protocol analysis, typically supported by a degree in electrical engineering or a related field. Familiarity with cellular test equipment (such as spectrum analyzers, signal generators, and protocol analyzers), as well as knowledge of 3G/4G/5G standards and relevant certifications, is commonly required. Strong analytical thinking, problem-solving, and effective communication skills help you diagnose issues and collaborate with cross-functional teams. These competencies ensure reliable device performance, regulatory compliance, and successful product launches in a rapidly evolving wireless industry.

What is the difference between Cellular Test Engineer vs RF Test Engineer?

AspectCellular Test EngineerRF Test Engineer
CredentialsBachelor's in Electrical Engineering or related; certifications like FCC or RF testing certificationsBachelor's in Electrical Engineering; RF certifications often preferred
Work EnvironmentTesting labs, R&D departments, field testing for cellular devicesTesting labs, RF labs, manufacturing facilities, field testing
Industry UsageTelecommunications, mobile device manufacturing, network providersWireless communications, telecom, RF component manufacturing
Common Search/ComparisonCellular Test Engineer vs RF Test Engineer

The Cellular Test Engineer focuses on testing cellular devices and networks, ensuring compatibility with cellular standards. The RF Test Engineer specializes in radio frequency testing, which includes a broader range of wireless technologies. While both roles require knowledge of RF principles and certifications, the Cellular Test Engineer is more specific to cellular technologies, whereas the RF Test Engineer covers a wider spectrum of wireless systems.

What are popular job titles related to Cellular Test Engineer jobs in California?

For Cellular Test Engineer jobs in California, the most frequently searched job titles are:

What job categories do people searching Cellular Test Engineer jobs in California look for?

The top searched job categories for Cellular Test Engineer jobs in California are:

What cities in California are hiring for Cellular Test Engineer jobs?

Cities in California with the most Cellular Test Engineer job openings:

Cellular Test Engineer jobs near you
Infographic showing various Cellular Test Engineer job openings in California as of September 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $90,822 per year, or $43.7 per hour.

Firmware Validation Test Engineer

Foster City, CA • On-site

CYNET SYSTEMS
IT Services • 501 - 1,000 employees
Learn more about CYNET SYSTEMSexternal

$65 - $70/hr

Contractor

Medical, Dental, Vision, Life, Retirement

Posted 4 days ago

Job description

Job Overview:

Pay Range: $65.00hr - $70.00hr

Requirement/Must Have:

  • 8+ years in a hands-on validation/QA engineering role on firmware or embedded products.
  • Demonstrated experience writing and executing test plans/cases, identifying and closing coverage gaps, and managing defects through the full lifecycle.
  • Hands-on validation experience in at least one connectivity domain — Bluetooth, Wi-Fi, cellular (LTE/5G), GNSS, or vehicle networking.
  • Strong log triage and debugging instincts; comfortable with Wireshark, DLT, ADB, and similar tooling.
  • Track record of reproducing and isolating defects reported from production/field environments.
  • Python scripting sufficient to automate repetitive checks and parse logs; comfortable on Linux/Ubuntu.
  • Strong defect-tracking discipline (JIRA/Confluence) and experience in agile release cycles.

Responsibilities:

  • Execute functional, integration, regression, and exploratory testing for Audio and streaming features on bench and in-vehicle.
  • Author new test cases, expand existing test suites, and keep test documentation current as features evolve.
  • Identify untested or under-tested paths in the existing suites and systematically add coverage; track coverage health for each feature track.
  • Reproduce defects, capture and analyze logs (Wireshark, DLT, ADB, HCI/Bluetooth traces, vehicle logs), and isolate root cause before handing off to firmware owners.
  • Own first-line triage for Audio and Streaming feature fleet issues — reproduce in lab, narrow scope, and drive issues to closure in partnership with fleet support, diagnostics, and firmware teams.
  • Manage defects end-to-end in JIRA — clear reproduction steps, attached logs, severity rationale, fix verification, and regression follow-up.
  • Maintain test benches, in-vehicle rigs, and diagnostic setups so they stay release-ready.
  • Partner with firmware leads, product managers, and integration partners to align on feature readiness and defect priority.

Nice to Have:

  • Prior experience with in-cabin entertainment and/or media casting frameworks.
  • Bluetooth stack validation (pairing, A2DP/HFP/AVRCP, interop).
  • Background and experience in wireless connectivity technologies.
  • Prior exposure to autonomous-vehicle or robotaxi fleet environments.

Skills:

  • Firmware Validation.
  • QA Engineering.
  • Python.
  • Linux.
  • Ubuntu.
  • Wireshark.
  • DLT.
  • ADB.
  • HCI/Bluetooth traces.
  • JIRA.
  • Confluence.
  • Bluetooth.
  • Wi-Fi.
  • Cellular (LTE/5G).
  • GNSS.
  • Vehicle Networking.

Qualification And Education:

  • Bachelor’s or Master’s degree in Computer Science, Computer or Electrical Engineering, Mathematics, or a related field.

Benefits:

Our Benefits Include:

  • Medical, Dental, and Vision Insurance
  • 401(k) Retirement Plan
  • Health Savings Account (HSA)
  • Disability Insurance (Short-Term and Long-Term)
  • Life and AD&D Insurance
  • Paid Sick Leave (where required by applicable state or local law)
  • Supplemental Insurance Plans
  • Identity Theft Protection
  • Pet Insurance
  • Employee Wellness Programs
  • Employee Assistance Program (EAP)
  • Career Growth and Professional Development Opportunities

Disclaimer: Benefits eligibility, accrual rates, and usage limits may vary based on employment status, length of service, and work location. Paid Sick Leave is provided in strict accordance with applicable state and municipal mandates. Cynet Systems Inc. reserves the right to modify, amend, or terminate any benefit plans at any time in accordance with applicable laws.


About Cynet Systems


Founded in 2010 and headquartered in the Washington, DC metro area, Cynet Systems Inc. is a leading technology staffing and workforce solutions company serving Fortune 500 companies, government agencies, and enterprise organizations across the United States and Canada. We deliver agile, scalable talent solutions across IT, engineering, life sciences, clinical, and professional staffing, powered by a high-performing recruitment engine operating across North America and Asia.

As a nationally and locally certified Minority Business Enterprise (MBE), Cynet Systems is committed to helping organizations build high-performing teams while empowering professionals to grow rewarding careers. Our organization is certified to ISO 9001, ISO 14001, ISO 27001, and SOC 2 Type II standards, reflecting our commitment to quality, security, operational excellence, and customer success.

Cynet Systems logo

About Cynet Systems

Sourced by ZipRecruiter

Cynet Systems Inc is a staffing and recruiting corporation nestled in Ashburn, VA, USA. Established in 2010, the company operates within the Information Technology and Services sector, specializing in providing effective workforce solutions to different business needs, including IT consulting, direct hire, and contract staffing services. Through the years, Cynet Systems has built an impressive portfolio, going beyond borders and expanding its operations internationally in Canada and India. Rooted in its core values of teamwork, leadership, and commitment, Cynet Systems helps businesses unlock their full potential by providing versatile and competent professionals that perfectly align with their needs. Fueled by their unwavering mission to deliver top-tier talent to businesses worldwide, Cynet Systems garnered various recognitions including SIA's fastest-growing staffing firms and Best Place to Work in Virginia for 2019.

Industry

It services

Company size

501 - 1,000 Employees

Headquarters location

Sterling, VA, US

Year founded

2010

Social media

Twitter

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