Embedded Firmware Engineer — Low-Level C & Hardware

OSI Engineering, Inc.; Cupertino (CA); On-site; USD 96,000 - 124,000; Full time

Job summary

OSI Engineering, Inc. is seeking an Embedded Firmware Engineer to develop, debug and maintain low-level embedded C firmware tightly integrated with hardware in a fast-paced environment.

The role requires hands-on experience with GPIO, SPI, I2C, USB high-speed interfaces, and strong debugging skills. You will read schematics, collaborate with hardware teams, and drive firmware issues to resolution while aligning with project goals.

Qualifications

• Embedded firmware and driver development (up to 10 years).
• Strong Embedded C with low-level debugging skills.
• Experience reading schematics and hardware concepts.
• Familiarity with GPIO, SPI, I2C, USB high-speed interfaces.
• Python and Lua scripting to automate testing and debugging workflows.

Responsibilities

• Develop, debug, and maintain low level embedded C firmware interacting directly with hardware.
• Diagnose system and firmware issues across products and code branches.
• Review schematics and validate firmware behavior against hardware design.
• Generate engineering binaries, submit changes to repositories, and manage build workflows.
• Coordinate closely with hardware, factory, program management, and technical teams.
• Drive issues to closure by tracking tasks and priorities, removing blockers.
• Communicate progress, risks, and outcomes clearly to stakeholders.
• Participate in regular sync calls with China-based teams during late afternoon or evening hours.

Skills

Embedded C

Low level debugging

Dynamic memory alloc.

GPIO

SPI

I2C

USB high-speed

Python scripting

Lua scripting

Hardware schematics

Communication & multitasking

Education

BS in Computer Engineering

MS in Computer Engineering (preferred)

Job description

OSI Engineering, Inc. is seeking an Embedded Firmware Engineer to develop, debug and maintain low-level embedded C firmware tightly integrated with hardware in a fast-paced environment.

The role requires hands-on experience with GPIO, SPI, I2C, USB high-speed interfaces, and strong debugging skills. You will read schematics, collaborate with hardware teams, and drive firmware issues to resolution while aligning with project goals.