Senior Embedded SERDES Firmware/Diagnostics Engineer

TYLsemi•San Jose, CA

8d•$180,000 - $216,000

About The Position

We're hiring a senior firmware engineer to architect, develop, and bring up embedded firmware for Ethernet SerDes, retimers, and diagnostics. The role covers SerDes, calibration, manufacturing, and test firmware. You'll work closely with ASIC, module, manufacturing, test, and reliability teams. You'll define ARM and RISC-V control architectures, write digital requirements for custom control ASICs, build a solid firmware development and CI flow, and mentor engineers across programs.

Requirements

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
Experience using AI-assisted coding, refactoring, and test generation in an embedded workflow
A track record of leading cross-functional bring-up and mentoring engineers

Nice To Haves

MACsec (802.1AE) key management or data-plane acceleration, and PTP hardware timestamping or clock recovery, in optical hardware
Root of Trust, Secure Boot, and secure firmware update (FOTA/UFOTA)
SerDes management, link-training tuning, and real-time diagnostic frameworks
Product qualification, stress testing, reliability investigations, and board-level FA

Responsibilities

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