Embedded Software Engineer – Cellular Modem (L1/PHY)

LeadStack Inc. • San Jose, CA

2d • Onsite

About The Position

We are seeking an Embedded Software Engineer to develop and commercialize cellular modem software for the North American market. The ideal candidate will have strong expertise in cellular technologies, L1/PHY protocols, and embedded software development.

Requirements

• Bachelor's degree with 5+ years, Master's degree with 3+ years, or PhD with relevant experience in wireless communication technologies.
• Strong programming skills in C/C++ within embedded environments.
• Solid understanding of embedded systems concepts and Hardware Abstraction Layer (HAL).
• Strong knowledge of 3GPP L1 protocol specifications.
• Hands-on knowledge of physical layer channels, including PDCCH, PDSCH, and PBCH.
• Experience using test equipment to verify and debug assigned features and issues.
• Strong ownership mindset, problem-solving skills, and ability to innovate in commercial modem software development.

Nice To Haves

• Familiarity with MAC, RLC, PDCP, and RRC protocols is preferred.

Responsibilities

• Develop and support commercialization of cellular modem software.
• Analyze field and test equipment logs, debug issues, and implement fixes.
• Participate in new feature development and verification activities.
• Understand and optimize existing embedded software to improve overall performance.
• Work with test equipment and vendor drops to validate and troubleshoot features.
• Collaborate with cross-functional teams and customers to deliver end-to-end solutions.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level