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Modem Test Engineer Jobs in California (NOW HIRING)

Cubic Corporation

Systems Test Engineer

San Diego, CA · On-site

$82 - $102/hr

Job Summary The Systems Test Engineer will help deliver the quality and performance of military ... modem processing. * Participates in the bidding process. Minimum Job Requirements * Four-year ...

New

Cubic Corporation

Systems Test Engineer

San Diego, CA · On-site

$82K - $102K/yr

The Systems Test Engineer will help deliver the quality and performance of military communication ... modem processing. * Participates in the bidding process Minimum Job Requirements: * Four-year ...

Blue Star Families

Systems Test Engineer

San Diego, CA · On-site

$82K - $102K/yr

The Systems Test Engineer will help deliver the quality and performance of military communication ... modem processing. * Participates in the bidding process Minimum Job Requirements: * Four-year ...

Qualcomm

Sr. Modem Power Engineer

San Diego, CA · On-site

$110K - $152K/yr

As a Qualcomm Modem Software Engineer, you will design, implement, verify, validate, and ... Familiarity with commercial wireless test equipment (e.g., Keysight, R&S, Anritsu) is a plus

Protingent

Senior Engineer, Modem Software

San Jose, CA · On-site

$65 - $85/hr

Job Title : Senior Engineer, Modem Software Position Description : Protingent Staffing has an ... Analyze field and test equipment logs, debug issues and provide fix * Participate in new feature ...

Innoflight

Digital Modem Design Engineer

San Diego, CA · On-site

$116K - $140K/yr

Here, visionary minds engineer the future of space technology through pioneering, compact, and ... Ability to analyze, troubleshoot, and optimize modem performance using RF test equipment.

Viasat

System Test Engineer - Government

Carlsbad, CA · On-site

$121 - $190/hr

... modem! You will also write test documentation include test plans, procedures and test cases and ... Collaborate with system engineering, software development, project engineers and other test ...

Qualcomm

System Level Test Engineer

San Diego, CA · On-site

$94.20 - $141.20/hr

... Test group. Responsibilities Working with engineering teams for early-stage silicon bring-up and ... modem chipsets at various operating conditions. Develop effective production screens for system ...

Qualcomm

System Level Test Engineer

San Diego, CA · On-site

Engineer will also partner with development teams to create automated test content solutions that ... and modem chipsets at various operating conditions. * Work will also include working with team ...

Nutanix

System Level Test Engineer

San Diego, CA · On-site

$94 - $141/hr

Engineer will also partner with development teams to create automated test content solutions that ... modem chipsets at various operating conditions.Work will also include working with team project ...

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Modem Test Engineer information

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How much do modem test engineer jobs pay per hour?

As of Sep 7, 2026, the average hourly pay for modem test engineer in California is $62.67, according to ZipRecruiter salary data. Most workers in this role earn between $45.77 and $66.20 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 California?

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

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

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

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

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

Modem Test Engineer jobs near you
Infographic showing various Modem Test Engineer job openings in California 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 91% Physical, 1% Hybrid, and 8% Remote job distribution, with an average salary of $130,361 per year, or $62.7 per hour.

Automation Test Engineer

TrellisWare Technologies

San Diego, CA • On-site

$48.75 - $64.50/hr

Full-time

Posted 24 days ago

Job description

TrellisWare launched in 2000 with an innovative culture striving to push technological boundaries in the area of wireless communications. We are now a worldwide leader in highly advanced algorithms, waveforms, and communications systems that range from small form factor radio products to fully integrated solutions.
At TrellisWare, we connect passion with purpose and together we make an impact- on our careers, our company, and the world. And you can too. If you love to innovate and collaborate in a dynamic environment where boundaries are being pushed, you belong at TrellisWare. Where the opportunity to serve is not a challenge but a gift. Where you're never going alone. Because there's too much at stake to go solo.
Our Engineering Team is seeking an Automation Test Engineer (ATE). The ATE team leverages deep understanding of both hardware and software to design, implement, verify, and scale the complex infrastructure systems we use for cutting-edge radio development. You would be responsible for designing test cases in TrellisWare's automation scripting environment and building advanced radio automated test systems. You'll develop tools and systems for data collection and visualization and perform data-driven analysis of system behavior. Spend your days working on next generation self-networking hand-held radios for our Special Forces or help create new modem technologies for the toughest communication problems such as scalability, robustness, and maximizing throughput.
Enhancing cohesiveness and maintaining team morale is a responsibility of all our team members, as is the ambition for self-improvement and talent development. Through this dedication to unity and professional advancement, each team member is directly impacting the successful outcome of TrellisWare's deliverables and setting the tone for our core values of delivering excellence, pushing boundaries, and empowering people.
The essential duties and responsibilities include:
  • Design, maintain, and deploy an automated scripting environment and test sequencer.
  • Create and document programming API's to facilitate the rapid development of automated tests.
  • Create user interfaces that enable easy access to device capabilities.
  • Develop, document, and execute automated test scripts that characterize key performance parameters.
  • Perform detailed data analysis to diagnose and identify performance related issues.
  • Contribute to process improvement and planning of the ATE Team.
  • Support systems engineering of TrellisWare proprietary technologies.
  • Programming in VB.NET, C#, and Python in a product development environment.
  • Test infrastructure development to include programming API's, user interfaces, data collection, and data post processing.
  • Operating and programming test equipment such as spectrum analyzers, oscilloscopes, signal generators, radio emulators, network analyzers, RF switch matrixes, and multimeters.
  • Automated test case design and execution.
  • The process involved in generating a test plan from engineering designs and subsequently developing and supporting a system of software test code for units under test, including the development of a test database.

Education and work experience requirements are
  • BSEE, BSCE, BS Physics, or equivalent
  • 1- 8 years' experience
  • Experience with Mobile Ad-hoc Networked (MANET) radios and military communications is a plus.
  • Experience developing embedded software using C/C++ on a Linux platform is a plus.

To be considered for this position, you would need to meet, at a minimum, the knowledge, skills, and abilities listed here:
  • Knowledge of object-oriented design.
  • Knowledge of device drivers.
  • SW development skills with database and web experience.
  • Knowledge of common embedded Linux development tools (i.e. compilers, linkers and debuggers) and Linux subsystems.
  • Windows, Linux GUI and command line tools for software installation and diagnostics. Shell scripting or more advanced programming skills a plus.
  • The OSI 7 layers model. Advanced knowledge of layers 1, 2, 3, & 4. Layers 5-7 desirable.
  • Knowledge of RF technology, radio design, and RF test equipment.
  • Hardware design skills and test fixture development using bed of nails a plus.
  • Familiarity with IP networking.
  • Familiarity with Raspberry PI setup, configuration, and integration.
  • Familiarity with wireless telecommunications and cellular radio systems standards (FDMA,TDMA).
  • You can think on your feet. You are analytical, pay attention to detail and are able to communicate your thought process both written and verbally.
  • You thrive in a collaborative and team oriented environment.
  • You have a curiosity to know how things work and passion to learn. You want to know why something fails to work and the initiative to fix it.
  • You want to work as an experienced ATE Engineer in product and technology development programs focusing on SW/HW design integration, verification and validation. You will be spearheading design for testability (DfT) with HW and SW developers to ensure TrellisWare products have advanced capability for automated testing.
  • Strong collaborative drive.
  • Strong initiative, proactive work ethic and prioritization skills.
  • Trustable judgement and analytical problem-solving skills.
  • Effective execution and decision making.
  • Champion of change and innovation.
  • Strong written and verbal communication skills.
  • Strong interpersonal skills and the ability to foster relationships with team members based on trust and respect.

The physical demands described here represent those that must be met in order to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable those with qualified disabilities.
  • Able to frequently sit, stand, walk, use hands to fingers, handle or feel, reach within hands and arm's length, stoop, kneel, and crouch, talk and hear.
  • Regularly required to sit for extended periods of time; frequently required to use office equipment such as PC, printer, telephone, etc.
  • Able to regularly lift and/or move up to 10 pounds, frequently lift and/or move up to 25 pounds, and occasionally lift and/or move up to 50 pounds.
  • Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception, and ability to adjust focus.

Additional requirements are:
  • U.S. Citizenship or Permanent Residency.

Note: Many of TrellisWare's positions require a security clearance or the ability to obtain one. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.
TrellisWare Technologies pays competitively according to the market in an individual's geographic location, in addition to their qualifications and experience. The posted range is annually and for individuals located in the San Diego, CA area.
San Diego, California Pay Range
$105,000-$200,000 USD
Disclaimers
  • The above statements are not intended to be an exhaustive list of all responsibilities, duties and skills required of personnel so classified. Nothing in the job description restricts the company's right to change, assign, or reassign duties and responsibilities at any time for any reason.
  • As part of our onboarding process, we conduct background checks, where legally permitted and appropriate for the role, in accordance with applicable laws, regulations, and privacy requirements.

*TrellisWare Technologies, Inc. is an EEO/AA/Disability/Vets Employer.*
Check out the Careers page for more information about working at TrellisWare Technologies.

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