Principal Software Engineer Jobs in Irvine, CA

Company Overview

At Motorola Solutions, we believe that everything starts with our people. We’re a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. We build and connect technologies to help protect people, property and places. Our solutions foster the collaboration that’s critical for safer communities, safer schools, safer hospitals, safer businesses, and ultimately, safer nations. Connect with a career that matters, and help us build a safer future.

Department Overview

Silvus Technologies was acquired by Motorola Solutions in 2025, and is now part of its ecosystem of safety and security technologies.

With deep roots in DARPA research, Silvus Technologies develops world-class advanced communications technologies that are reshaping the tactical communications landscape. From pure line-of-sight to extreme non-line-of-sight, Silvus radios form a self-healing, self-forming mesh network, enabling secure and reliable connectivity, including video and high-bandwidth data.

Job Description

THE OPPORTUNITY

Silvus is seeking a Principal Embedded Software Engineer to join our Engineering Group, reporting to the Senior Engineering Director for our Irvine office. The successful individual in this role will participate in the development of Silvus’ MANET radios and advanced research projects. This is an opportunity to work on all aspects of the system including device drivers, networking functions and services, encryption, and security features.

This position is fully onsite, Monday through Friday, at Silvus Technologies’ Engineering and R&D Office in Irvine, CA , near the vibrant Irvine Spectrum.

The following is a list of at least some of the current essential job functions of the position. Management may assign or reassign duties and responsibilities at any time at its discretion.

ROLE AND RESPONSIBILITIES

• Implementation of the software portion of MAC (Medium Access Control) and mobile ad-hoc networking routing protocols.
• Network management software and web interface implementation.
• Implementation of different security protocols and encryption algorithms.
• Audio streaming and push-to-talk voice application implementation.
• Analyzing and improving product security and robustness to meet certain regulatory requirements such as NIST FIPS 140-3 and NIAP Common Criteria.
• Implementation of testing software for product performance and reliability testing.
• Device driver and board support package development and maintenance for both ARM and RISC-V based systems.
• Linux system customization and scripting.

REQUIRED QUALIFICATIONS

• Bachelor of Science degree in Electrical Engineering, Computer Science, or relevant engineering fields.
• 8+ years of relevant embedded system software development experience.
• Expertise in C programming and experience in Linux kernel driver development.
• Must be a U.S. Citizen due to clients under U.S. government contracts.
• All employment is contingent upon the successful clearance of a background check.

PREFERRED KNOWLEDGE, SKILLS, AND ABILITIES

• Knowledge of and experience with different security protocols and encryption algorithms such as suite of CNSA algorithms.
• Demonstrated experience with socket programming and various Internet/Ethernet protocols.
• Understanding of MAC and Networking layer of a communication system.
• Experience in AMD UltraScale+ MPSoC and Microchip Polarfire SoC BSP support package development.
• Deep understanding of Internet Protocol Security (IPsec), network protocols, data authentication and encryption.
• Linux Interrupt Service Routine development.

COMPENSATION: $180,000 - $250,000 / annually

The pay range is NOT a guarantee, is based on market research and peer data, and will vary depending on the candidate’s experience and qualifications.

#silvuscareers

Basic Requirements

• Bachelor of Science degree in Electrical Engineering, Computer Science, or relevant engineering fields.
• 8+ years of relevant embedded system software development experience.
• Expertise in C programming and experience in Linux kernel driver development.
• Must be a U.S. Citizen due to clients under U.S. government contracts.

Travel Requirements

10-25%

Relocation Provided

Domestic

Position Type

Experienced

Referral Payment Plan

Yes

Our U.S. Benefits include:

• Incentive Bonus Plans

• Medical, Dental, Vision benefits

• 401K with Company Match

• 10 Paid Holidays

• Generous Paid Time Off Packages

• Employee Stock Purchase Plan

• Paid Parental & Family Leave

• and more!

  
  

EEO Statement

Motorola Solutions is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion or belief, sex, sexual orientation, gender identity, national origin, disability, veteran status or any other legally-protected characteristic.

We are proud of our people-first and community-focused culture, empowering every Motorolan to be their most authentic self and to do their best work to deliver on the promise of a safer world. If you’d like to join our team but feel that you don’t quite meet all of the preferred skills, we’d still love to hear why you think you’d be a great addition to our team.

We’re committed to providing an inclusive and accessible recruiting experience for candidates with disabilities, or other physical or mental health conditions. To request an accommodation, please complete this Reasonable Accommodations Form so we can assist you.