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Modem Test Engineer Jobs in Union City, CA (NOW HIRING)

Xoriant Corporation

Firmware Engineer

San Jose, CA · On-site

Job Title: Wireless Test Engineer (301988) Location: San Jose, CA Duration: 6+ months contract ... Support Verizon/Sprint/ATT/T-Mobile modem test for Lab/Field/IOT certification. * Participate in ...

Siri InfoSolutions Inc

RF Test Engineer

Fremont, CA · On-site

Job Title: RF Test Engineer Location: Fremont , CA Onsite/ Remote: Day 1 Onsite at customer ... Strong hands-on experience in RF testing, wireless device validation, or cellular modem testing.

Ericsson

Principal Modem Engineer

Santa Clara, CA

... automated test frameworks for modem and eSIM firmware Build hardware-in-the-loop (HIL) test ... Developer Compensation and Benefits at Ericsson At Ericsson, we know that our people are the key to ...

New

Qualcomm

#Systems Test Engineer

Santa Clara, CA · On-site

Engineering Group, Engineering Group > Systems Test Engineering General Summary: ** This position ... modem (WWAN), WLAN, sensors, middleware, and application layers. * Designs and executes test plans ...

Qualcomm

#Systems Test Engineer

Santa Clara, CA · On-site

... a Systems Test Engineer to test and validate location technology systems. The role involves ... modem (WWAN), WLAN, sensors, middleware, and application layers. • Designs and executes test ...

Ericsson

Principal Modem Engineer

Santa Clara, CA · On-site

Design and implement CI/CD pipelines and automated test frameworks for modem and eSIM firmware ... Support and develop senior and mid-level engineers on modem driver and eSIM development

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All JobsModem Test Engineer JobsModem Test Engineer Jobs in Union City, CA

Modem Test Engineer information

See Union City, CA salary details

$27

$72

$218

How much do modem test engineer jobs pay per hour?

As of Sep 1, 2026, the average hourly pay for modem test engineer in Union City, CA is $72.34, according to ZipRecruiter salary data. Most workers in this role earn between $52.84 and $76.39 per hour, depending on experience, location, and employer.

What does a modem test engineer do?

A Modem Test Engineer is responsible for testing the performance, reliability, and functionality of modem hardware and software. They design and execute test cases to validate features, identify bugs, and ensure compliance with industry standards such as 4G, 5G, or Wi-Fi protocols. Modem Test Engineers work closely with development teams to troubleshoot issues and contribute to the improvement of modem products. Their role is critical to ensuring that modems deliver optimal connectivity and user experience before being released to the market.

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

To thrive as a Modem Test Engineer, you need a solid background in electrical engineering, wireless communication protocols (such as LTE/5G), and experience with testing methodologies, usually supported by a relevant degree. Familiarity with test automation tools, protocol analyzers, and debugging systems like Wireshark or QXDM, as well as certifications such as ISTQB, are typically required. Strong analytical thinking, attention to detail, and effective teamwork and communication skills help you identify issues and work efficiently with cross-functional teams. These skills and qualities are crucial to ensuring modem products meet rigorous performance, reliability, and compliance standards before reaching the market.

What are some common challenges faced by modem test engineers when validating new firmware releases?

Modem Test Engineers often encounter challenges such as identifying intermittent connectivity issues, reproducing complex network scenarios, and ensuring compatibility across a wide range of devices and network carriers. Staying updated with evolving wireless standards (like 5G and LTE) and simulating real-world usage environments can also be demanding. Effective collaboration with development teams is crucial to quickly address discovered bugs and streamline the release cycle.

What is the difference between Modem Test Engineer vs Network Test Engineer?

AspectModem Test EngineerNetwork Test Engineer
CredentialsBachelor's in Electrical Engineering or Computer Science, certifications like ISTQBBachelor's in Computer Networking, certifications like Cisco CCNA or CCNP
Work EnvironmentTesting labs, hardware labs, product development teamsNetwork operation centers, enterprise or service provider networks
Industry UsageTelecommunications, consumer electronics, hardware manufacturingIT services, telecommunications, enterprise networking
Common Search/ComparisonYesYes

The Modem Test Engineer focuses on testing and validating modems and related hardware/software, while the Network Test Engineer specializes in testing network infrastructure and connectivity. Both roles require technical certifications and work in related environments, but their primary focus and industry applications differ.

What are popular job titles related to Modem Test Engineer jobs in Union City, CA?

For Modem Test Engineer jobs in Union City, CA, the most frequently searched job titles are:

Modem Test Engineer jobs near you
Infographic showing various Modem Test Engineer job openings in Union City, CA as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 13% Part Time, 2% Contract, and 1% Nights. Highlights an 92% Physical, 1% Hybrid, and 7% Remote job distribution, with an average salary of $150,459 per year, or $72.3 per hour.

Modem System Test Engineer

Wise Equation Solutions Inc.

Foster City, CA • On-site

Other

Re-posted 10 days ago

Job description

Job Description & Skill Requirement:

  • The Modem System Test Engineer will analyze wireless performance for various use-cases for Zoox Applications in telematics domain.
  • Collect and process test data for issue debugging with modem logs. Develop, document, execute & debug system-level validation tests for network-connected devices. This includes mission-critical 4G-LTE, 5G-NR, Wi-Fi, and GNSS wireless interfaces, integrated with Zoox''s on-vehicle and cloud-based networks.
  • Collaborate with FW engineers to ensure performance meets quality of service targets and other key metrics including throughput, latency, and jitter.
  • Hands-on to develop test cases and execute test frameworks for prototypes and commercial system releases as well as conduct tests in the field, ensuring network compliance with international regulations.
  • We seek an expert, enthusiastic, innovative, and self-starting individual to join our team.

 

Required Skills:

  • Modem log analysis and triaging for telematics domain.
  • Analyze 4G-LTE, 5G-NR, Wi-Fi, GNSS, Ethernet, and IP behavior internally and with partners.
  • Identify root causes of failures, whether found internally or externally. 
  • Collaborate with Modem Vendor to discuss technical issues and drive them to closure. 
  • Be hands-on and explore opportunities for improvement, relying on diagnostics, analytics, and lab/test equipment experiments. 
  • Generate Documentation - Draft and present Test Plans, Design Reviews, Test Readiness Reviews, and Data Reviews.
  • Review and provide feedback on test plans and reports from suppliers. 
  • Develop Test Infrastructure - Select, procure, commission, and configure test cases on network emulators and related test equipment supplied by vendors such as Keysight or Rohde & Schwarz.
  • Develop custom test assets, setups, and scripts to enable efficient testing, including scripts using Python and TTCN. 
  • Construct and maintain lab infrastructure, from fixed network test harnesses to RF c.
  • Automotive experience is a plus.

 

Qualification:
B.S. in Electrical Engineering, Telecommunications, E&C

Feel free to reach out in case of any queries or clarifications.

Looking forward to your prompt response.

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