Principal Engineer - Linux Kernel

Description :

- Develop and maintain Linux kernel, BSP, and U-Boot for industrial Ethernet switch platforms

- Execute board bring-up tasks : device tree, pinmux, clocks, power/reset sequencing

- Integrate and customize Marvell Ethernet switch SDK

- Port, debug, and optimize network and Ethernet drivers

- Perform PHY & SERDES bring-up, tuning, and debugging

- Implement and integrate L2/L3 networking protocols, including :

1. PROFINET CC-C, TCNOpen, ERPS

2. PTP (IEEE 1588) and TSN

- Develop and maintain Yocto BSPs, custom images, SDKs, and packages

- Implement low-level Linux drivers (I2C, SPI, UART, GPIO, PCIe, Ethernet, PoE)

- Develop and support manufacturing utilities (MAC flashing, factory bring-up tools)

- Execute throughput, performance, and PoE testing

- Support railway EN standards (EN50155, EN50121-4, EN61131-2) and SL-3 security validation

- Collaborate with hardware, validation, manufacturing, and silicon vendor teams

Preferred candidate profile :

MUST have :

- Linux Kernel & BSP expert (device tree, pinmux, driver development)

- Strong experience with Marvell Ethernet switch SoCs / SDKs

- Yocto Project expert (meta-layers, recipes, distro config, SDKs)

- Security : Netfilter, NAT, firewall, RADIUS, secure boot

- Industrial Ethernet switching & L2/L3 protocol integration

- PHY / SERDES bring-up and tuning

- Debugging using JTAG, crash dumps, ftrace, perf

- PoE (af/at/bt) integration and testing

- Manufacturing tools (MAC flashing, factory utilities)

- Solid understanding of schematics and hardware datasheets

Nice to have :

- Railway or rugged industrial product experience

- CI/CD with GitLab or Jenkins

- OTA / A-B update strategies