Embedded Firmware/Software Engineer, USB-C Power Delivery for Fastwater Staffing and Recruiting

Hikinex; Bellevue (WA); On-site; USD 110,000 - 160,000; Full time

Job summary

Hikinex is seeking an embedded firmware engineer to bring up new hardware built around USB-C Power Delivery controllers. You will develop firmware for 32-bit ARM MCUs, configure ICs over I2C/SPI/UART, and work hands-on at the bench with the hardware team to move from PCB to production-ready software.

You will debug firmware on ARM Cortex-M MCUs, work from datasheets, and document configurations while collaborating to isolate hardware vs. firmware issues.

Qualifications

• Strong embedded C on 32-bit MCUs, with interrupt and peripheral handling.
• Experience with USB-C/USB-PD negotiation and role management.
• Proficient in I2C/SPI/UART for peripheral control and debugging.
• Hands-on hardware bring-up from power-on to functioning firmware.
• Ability to read datasheets/schematics and configure parts accordingly.
• Proficient in bench debugging tools: oscilloscope, logic analyzers, SWD/JTAG.

Responsibilities

• Bring up new PCBs and validate power/clocks, enabling firmware on hardware.
• Develop and debug embedded C firmware for ARM Cortex-M MCUs.
• Configure companion ICs via I2C/SPI/UART.
• Implement and debug USB-C/USB-PD behavior including negotiation and fault handling.
• Debug at bench with tools and document decisions.
• Collaborate with hardware engineers to isolate issues.

Skills

Embedded C

USB-C/USB-PD understanding

I2C/SPI/UART

Hardware bring-up

Datasheet literacy

Bench debugging

Git

MCU SDK/IDE familiarity

Bootloader/DFU

Power-path firmware

USB subsystem experience

PD controllers familiarity

Tools

ModusToolbox

STM32Cube

Job description

Role Description

We're bringing up new hardware built around USB-C Power Delivery controllers and are looking for an embedded firmware engineer to help take these boards from bare PCB to working, production-quality firmware. You'll write and debug firmware on 32-bit ARM microcontrollers, configure companion ICs over I2C/SPI/UART, and work hands-on at the bench in collaboration with our hardware team.

Job Responsibilities

• - - Bring up new PCBs: validate power/clocks, connect a debugger, enable peripherals, and get firmware running on new hardware
• - Develop and debug embedded C firmware on ARM Cortex-M-class MCUs
• - Configure and drive companion ICs over I2C or other peripheral buses
• - Implement and debug USB-C / USB-PD behavior (power negotiation, source/sink roles, fault handling, etc.)
• - Debug at the bench with oscilloscope, protocol/logic analyzer, multimeter, and SWD/JTAG
• - Work from datasheets, register tables, and schematics
• - Document configurations and design decisions
• - Collaborate with hardware engineers to isolate hardware vs. firmware issues

Required Skills

• - - Strong embedded C on 32-bit MCUs (ARM Cortex-M or similar): interrupts, register-level peripheral work, development under flash/RAM constraints
• - Working understanding of USB-C/USB-PD (source/sink/DRP roles, power contract negotiation)
• - I2C/SPI/UART peripheral/companion-IC communication, configuration, and debug
• - Hands-on hardware bring-up experience: taking a board from power-on to running firmware, or debugging firmware against real hardware
• - Datasheet and schematic literacy: able to configure a part from its register tables and confirm pin/power connections
• - Comfortable with standard bench debug tools: oscilloscope, logic/protocol analyzer, SWD/JTAG debugger, UART logging
• - Git proficiency

Preferred Skills

• - - Experience with a Cypress/Infineon MCU SDK/IDE and its middleware (e.g. ModusToolbox, STM32Cube, or similar), including creating/customizing a board support package
• - Firmware update/bootloader work (DFU or equivalent): building and flashing update images
• - Power-path or regulator firmware: VBUS control, fault detection/recovery (OVP/UVP/OCP), enable/soft-start sequencing
• - USB subsystem experience: hubs, DisplayPort Alt Mode, redrivers/retimers, or billboard devices

Nice to have

• - - Prior work with Infineon EZ-PD / PMG1 (or Cypress CCGx) PD controllers and ModusToolbox
• - CI for embedded builds
• - USB-IF PD compliance/USB-C requirements familiarity