Senior Embedded SERDES Firmware Lead - Remote-Friendly

TylSemi, Inc.; San Jose (CA); Remote; USD 180,000 - 216,000; Full time

Job summary

TylSemi, Inc. in San Jose, CA is seeking a Senior Embedded SERDES Firmware/Diagnostics Engineer to architect, develop, and bring up firmware for Ethernet SerDes, retimers, and diagnostics.

You will collaborate with ASIC, module, manufacturing, test, and reliability teams to define ARM and RISC-V control architectures and build a solid firmware development flow. You will own firmware for Ethernet, PCIe, and SerDes interfaces, including telemetry, MACsec, and PTP timing, with emphasis on

Qualifications

• BS/MS/PhD in EE, CE, CS, or equivalent, with 8+ years in embedded firmware.
• Expert C and C-based SDK development; exposure to modern C++ or Rust.
• Experience defining MCU requirements (ARM, RISC‑V) and working with I2C, I3C, SPI, MDIO, and GPIO.
• Strong Python for test automation, data processing, and firmware QC.
• Hands-on with GCC/Make, Git/GitHub, Doxygen, CI/CD, and hardware-in-the-loop automation.
• A track record of leading cross‑functional bring-up and mentoring engineers.

Responsibilities

• Architect, develop, debug, and release production firmware for next-generation optical engines and module platforms (SFP/QSFP/OSFP).
• Define digital requirements for custom control ASICs, including MCU selection, memory maps, boot sequence, peripherals, telemetry, diagnostics, MACsec engines, and PTP hardware timestamping.
• Partner with ASIC, RTL, and verification teams on architecture, board bring-up, and system-level debug.
• Build and maintain firmware for Ethernet, PCIe, and SerDes (link training, interop, compliance), PTP/IEEE 1588, MACsec, and host interfaces.
• Bring-up and diagnostics: lead first firmware bring-up on new modules and ASICs, drive root-cause analysis across labs and field returns.
• Manufacturing & calibration: deliver firmware for manufacturing test, screening, calibration engines, and lookup tables for high-yield production.
• DevOps & CI/CD: own firmware workflow, including build/release pipelines, automated tests, regression coverage, and CI.

Skills

Embedded firmware

C/C++ SDK development

ARM/RISC-V

Python for test automation

Education

BS/MS/PhD in EE/CE/CS

Tools

GCC/Make

Git/GitHub

Doxygen

CI/CD

Job description

TylSemi, Inc. in San Jose, CA is seeking a Senior Embedded SERDES Firmware/Diagnostics Engineer to architect, develop, and bring up firmware for Ethernet SerDes, retimers, and diagnostics.

You will collaborate with ASIC, module, manufacturing, test, and reliability teams to define ARM and RISC-V control architectures and build a solid firmware development flow. You will own firmware for Ethernet, PCIe, and SerDes interfaces, including telemetry, MACsec, and PTP timing, with emphasis on