Wireless Firmware Engineer – LTE/5G Connectivity

Zoox; Northern, Foster City (KY, CA); Hybrid; USD 220,000 - 265,000; Full time

Benefits offered by this job

Stock appreciation rights

Amazon RSUs

Health insurance

Paid time off

Long-term care insurance

Disability insurance

Life insurance

Job summary

Zoox is seeking a seasoned Software Engineer for the Firmware team to own the integration, performance, and debugging of the TCU connectivity stack. You will collaborate with cellular vendors, architect cross-layer interfaces, and develop robust host-side software in C/C++ within embedded Linux.

You will shape telemetry, analysis, and automation to ensure safe, reliable, and scalable connectivity for Zoox autonomous fleets across 4G/5G, Wi-Fi, and Bluetooth, bridging hardware, cloud, and test

Qualifications

• Minimum 10+ years in embedded Linux systems and cellular/wireless stack software/firmware
• BS/MS in Computer Engineering, CS, Physics, Electrical Engineering or equivalent
• Exceptional programming skills in C/C++, Linux, and Python/Shell scripting
• Deep knowledge of LTE/5G protocol stacks and 3GPP specs
• Proven experience integrating third-party cellular modems and stacks with Qualcomm ecosystems
• Strong OS, hardware, data structures, and algorithm fundamentals
• Experience porting/patching open-source packages in Yocto
• Understanding of networking concepts: Ethernet, TCP/IP, IP routing, VLANs, firewalls, IPv4/IPv6

Responsibilities

• Develop and enhance the connectivity stack (LTE/5G) across hardware generations
• Integrate cellular chipset vendors' firmware and SW stacks into embedded Linux
• Define interfaces between RF baseband, vendor protocol stack, and host system
• Write host-side glue code for Linux networking stack
• Prototype and evaluate next-gen wireless platforms for Zoox products
• Investigate field issues and perform root-cause analysis across host and vendor firmware
• Support test automation and drive best practices across teams

Skills

Embedded Linux

C/C++

Python scripting

LTE/5G stacks

Vendor integration

Education

B.S./M.S. in Computer Engineering/CS/Physics/EE

Tools

QXDM

Wireshark

Yocto Project

Git

Job description

Zoox is seeking a seasoned Software Engineer for the Firmware team to own the integration, performance, and debugging of the TCU connectivity stack. You will collaborate with cellular vendors, architect cross-layer interfaces, and develop robust host-side software in C/C++ within embedded Linux.

You will shape telemetry, analysis, and automation to ensure safe, reliable, and scalable connectivity for Zoox autonomous fleets across 4G/5G, Wi-Fi, and Bluetooth, bridging hardware, cloud, and test