Embedded Software Engineer – Cellular Modem - 26-00599

LeadStack Inc. is an award-winning, one of the nation’s fastest-growing, certified minority-owned (MBE) staffing services provider of contingent workforce. As a recognized industry leader in contingent workforce solutions and Certified as a Great Place to Work, we’re proud to partner with some of the most admired Fortune 500 brands in the world.

Job Title: Embedded Software Engineer – Cellular Modem (L1/PHY)

Location: San Jose, CA - 5 days Onsite

Duration: 6 Months

PR: $65/hr - $85/hr on W2

Job Summary

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 .

Key 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.

Required Qualifications

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

Key Skills

• Embedded C/C++
• Cellular Modem Software
• 3GPP L1/PHY
• Embedded Systems & HAL
• PDCCH, PDSCH, PBCH
• LTE/5G Technologies
• Log Analysis & Debugging
• Feature Development & Validation
• MAC, RLC, PDCP, RRC (Preferred)
• Wireless Communication Technologies

Experience: 3–5+ Years (based on educational qualifications)