Principal Modem Architect: Lead 5G Firmware

Ericsson; San Diego (CA); On-site; USD 234,000 - 293,000; Full time

Benefits offered by this job

401(k) plan

Health benefits

Paid vacation

Family leave

Job summary

Ericsson Enterprise Wireless Solutions is building its modem engineering team, leading end‑to‑end modem baseband, platform, and firmware architecture for next‑generation enterprise and industrial IoT solutions. This Principal Modem Architect role owns the complete modem firmware architecture for LGA modem modules and guides the technology direction for a global-scale 5G platform.

You will lead software stack integration, drive architectural guidelines, and partner with chipset, hardware, and

Qualifications

• 10+ years of experience in embedded systems architecture, with 3+ years in modem or wireless domains.
• Hands-on experience with modem chipset platforms.
• Deep understanding of modem subsystem architecture, including ARM cores, DSP, and hardware accelerators.
• Expert knowledge of modem software stacks and integration models.
• Strong proficiency in C/C++ for large-scale, real-time embedded systems.
• Experience with system-level debugging using JTAG, trace tools, and lab instrumentation.
• Ability to lead technical discussions, reviews, and cross-team design alignment.
• Experience across multiple modem generations and carrier deployments (preferred).
• Linux kernel or embedded driver development experience (preferred).
• Solid fundamentals in wireless and RF concepts (preferred).
• Experience in mentorship or technical leadership (preferred).
• Master's degree or higher in Electrical Engineering, Computer Engineering, or a related field (preferred).

Responsibilities

• Own and define the end-to-end modem firmware architecture for LGA modem modules
• Lead modem software stack integration, customization, and long-term upgrade strategy
• Define architectural guidelines for baseband platform, RF, power management, and system interfaces
• Drive cross-team technical alignment across firmware, hardware, RF, and platform teams
• Serve as the primary technical contact with modem chipset and hardware partners
• Review and guide complex design decisions, trade-offs, and performance optimizations
• Debug and resolve critical system-level issues across hardware, firmware, and software boundaries
• Influence modem roadmap decisions, technology choices, and future platform evolution

Skills

Embedded architecture

Modem/wireless

Modem chipset platforms

Modem subsystem architecture

C/C++ embedded

JTAG/trace debugging

Technical leadership

Cross-team alignment

Carrier deployments

ARM/DSP cores

Education

Masters in EE/CE

Tools

Job description

Ericsson Enterprise Wireless Solutions is building its modem engineering team, leading end‑to‑end modem baseband, platform, and firmware architecture for next‑generation enterprise and industrial IoT solutions. This Principal Modem Architect role owns the complete modem firmware architecture for LGA modem modules and guides the technology direction for a global-scale 5G platform.

You will lead software stack integration, drive architectural guidelines, and partner with chipset, hardware, and