TrellisWare Technologies

Oct 14, 2026

Software Engineer, Modem BSP

United States

San Diego, California, United States

PythonC++Go

Disclaimers *

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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 $115,000—$200,000 USD

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. *

By submitting your application, you acknowledge that TrellisWare Technologies may collect, process, use and obtain your personal information for recruiting and hiring purposes in accordance with applicable data protection and privacy laws. Please review our Employee-Applicant Privacy Notice trellisware.com/wp-content/uploads/2023/06/TW-CCPA-CPRA-Employee-Applicant-Notice.pdf for more information.

*TrellisWare Technologies, Inc. is an EEO/AA/Disability/Vets Employer.*

Check out the Careers page trellisware.com/careers/ for more information about working at TrellisWare Technologies.

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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 Radio Products Team is seeking a hybrid Software Engineer, Modem BSP.

You would be responsible for working on next generation self-networking hand-held radios for domestic and foreign defense forces. A typical day might start with you working in your personal office designing and implementing an initialization routine, hardware driver/abstraction layer, or a real-time operating system abstraction layer. It could move into one of our many state-of-the-art labs with your teammates to bring up your design on physical hardware. 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, implement, integrate, and maintain: *

Hardware adaptation, device drivers, bootloader configuration. *

System initialization. *

Customization and optimizations for specific hardware and operating systems. *

Perform feasibility studies, and performance analysis of real-time operating system performance and portability on specific hardware targets. *

Document and present design alternatives using standard professional practices and corporate defined engineering processes. *

Develop relationships with team members built on trust and respect.

Education and work experience requirements are: *

Bachelor's degree in Electrical/Computer Engineering, Computer Science or related field of study required. *

Minimum of four years’ experience integrating with a real-time operating system (Nucleus, FreeRTOS, VxWorks) and four years of embedded software development experience. *

Deep proficiency in C and C++. *

Expertise in embedded systems architecture, hardware/software interaction, inter-processor communications, asymmetric multiprocessing, and Linux sub-system interaction. *

Experience using debugging tools such as oscilloscopes, logic analyzers, JTAG debuggers, test script usage. *

Experience with Object-oriented design, data link layer and device drivers as well as ARM based processors.

To be considered for this position, you would need to meet, at a minimum, the knowledge, skills, and abilities listed here: *

Real-time operating systems for embedded products. *

Integrating with hardware drive driver adaptations, operating system abstractions and boot sequencing. *

General Linux sub-system fundamentals. *

C/C++ and Python. *

Distributed revision control systems (GitHub), and common RTOS development tools (i.e. compilers, linkers, and debuggers). *

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 are able, and enjoy working independently as well as in a team environment. *

Strong collaborative drive and interpersonal skills. *

Strong initiative, proactive work ethic and prioritization skills. *

Trustable judgement and analytical problem-solving skills. *

Effective execution and decision making. *

Champion of change and promotes innovation. *

Strong written and verbal communication skills.

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.

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Software Engineer, Modem BSP

Disclaimers *

The essential duties and responsibilities include: *

Education and work experience requirements are: *

Additional requirements are: *

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