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onsemi

Senior Firmware Developer

611 Kumpf Dr, Unit 200, Waterloo, ON, N2V 1K8, Canada

Job type: Full-time
Experience: 3-5 years of experience in embedded firmware development
Posting language: English
Posted: Sep 24, 2026

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Original job description

About onsemi

At onsemi, we help improve lives every day through innovative silicon and software solutions. Our intelligent power and sensing technologies address some of the world’s most complex challenges, enabling a safer, cleaner, and smarter future. From leading-edge wireless-enabled MCUs and DSPs to software that senses and connects the world - or supports personal health through body-worn and implantable devices - we are at the forefront of technology that truly makes a difference. Our world-class ultra‑low‑power solutions further contribute to a more sustainable future.

We invite you to join our innovative team and help shape technologies that improve lives around the globe.

The Role

We are seeking a Senior Firmware Engineer to join our embedded firmware development team in our Waterloo office. This team specializes in developing low-level firmware for advanced power management devices, high performance sensing solutions, embedded ethernet solutions and industry‑leading cloud power systems used by global infrastructure providers. In this role, you will collaborate closely with cross‑functional teams - including system architecture, design engineering, applications engineering, and embedded firmware development - to deliver robust, high‑quality solutions.

Why Join Us

At onsemi, we create a diverse range of world-class products in a collaborative, team‑oriented environment. We foster continual learning and professional growth through opportunities such as education assistance, patent and publication incentives, and exposure to cutting‑edge technologies.

We are also committed to supporting our employees beyond the workplace, offering volunteer and charitable programs, flexible work hours, and comprehensive wellness and retirement benefits - helping you maintain a healthy work‑life balance.

Responsibilities

What You’ll Do

Collaborate with system architects, design engineers, firmware engineers, and applications engineers to define and implement optimal firmware solutions

Develop firmware architecture specifications and associated test plans

Architect and implement embedded firmware primarily in C, with occasional use of C++ or assembly as required

Debug firmware on custom hardware platforms and prototypes

Optimize, refactor, and maintain existing firmware codebases

Participate in an Agile development environment, contributing to task planning, execution, and timely status updates

Apply best practices for coding, documentation, and tool usage (e.g., Git, JIRA, and related development tools)

Work closely with digital design engineers to emulate and validate new designs using FPGA platforms

Leverage AI‑assisted tools throughout the development lifecycle, including requirements analysis, design exploration, coding, test generation, debugging, documentation, and code review

Evaluate and apply AI capabilities in a disciplined and secure manner to improve developer productivity, code quality, and system understanding

Qualifications

What You’ll Need

Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, Software Engineering, or a related discipline

3-5 years of experience in embedded firmware development

Strong proficiency in embedded C, with working knowledge of C++ and assembly language

Solid understanding of embedded system design at both board and IC levels

Good knowledge of microprocessor architectures, including memory subsystems, interrupts, and common peripherals

Experience with communication protocols such as UART, I²C, SPI, and USB

Familiarity with hardware debug and analysis tools (e.g., hardware debuggers, oscilloscopes, logic analyzers)

Strong communication and interpersonal skills, with the ability to collaborate effectively across teams

Proven ability to plan and manage work to meet project deadlines

Detail‑oriented, quality‑focused, and a strong team player

Interest in or experience with the semiconductor industry

Demonstrated experience using AI‑assisted development tools across multiple stages of the software lifecycle (design, implementation, validation, and maintenance)

Ability to critically assess AI‑generated outputs, validate correctness, and integrate them safely into production‑grade firmware

What Else You May Bring

Experience with scripting languages, particularly Python

Experience with ARM Cortex‑M based microcontrollers

Hands‑on experience with FPGA prototype platforms for system evaluation

Experience with Verilog or SystemVerilog

Experience running and analyzing RTL simulations

Experience building or customizing AI‑enabled workflows (e.g., prompt engineering, automation, or tool integration) to support firmware development, verification, or documentation

Familiarity with enterprise and security considerations when applying AI in a regulated or IP‑sensitive environment

onsemi (Nasdaq: ON) is driving disruptive innovations to help build a better future. With a focus on automotive and industrial end-markets, the company is accelerating change in megatrends such as vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure. With a highly differentiated and innovative product portfolio, onsemi creates intelligent power and sensing technologies that solve the world’s most complex challenges and leads the way in creating a safer, cleaner, and smarter world.

More details about our company benefits can be found here:

https://www.onsemi.com/careers/career-benefits

We are committed to sourcing, attracting, and hiring high-performance innovators, while providing all candidates a positive recruitment experience that builds our brand as a great place to work.

onsemi is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, ethnicity, color, religion, ancestry, national origin, age, marital status, pregnancy, sex, sexual orientation, physical or mental disability, medical condition, genetic information, military or veteran status, gender identity, gender expression, or any other protected category under applicable federal, state, or local laws.

If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, or are limited in the ability or unable to access or use this online application process and need an alternative method for applying, you may contact Talent.acquisition@onsemi.com for assistance.

Apply About employer

More about this job

Responsibilities

Collaborate with cross-functional teams to define, architect, and implement robust embedded firmware solutions for power management and sensing devices. You will also debug firmware on custom hardware, optimize existing codebases, and leverage AI-assisted tools to enhance productivity and code quality.

Requirements

Requires a Bachelor’s or Master’s degree in a relevant engineering discipline and 3-5 years of experience in embedded firmware development. Candidates must possess strong proficiency in C, knowledge of microprocessor architectures, and experience with communication protocols and hardware debug tools.

Skills

Embedded C
C++
Assembly language
Microprocessor architectures
UART
I2C
SPI
USB
Hardware debugging
Oscilloscopes
Logic analyzers
Git
JIRA
FPGA
AI-assisted development
Embedded firmware development

Benefits

Education assistance
Patent and publication incentives
Volunteer and charitable programs
Flexible work hours
Comprehensive wellness benefits
Retirement benefits

Visa sponsorship

Not detected in the job text

Keywords

Embedded Firmware
C
C++
Assembly
Microprocessor
UART
I2C
SPI
USB
FPGA
Verilog
SystemVerilog
Python
ARM Cortex-M
Git
JIRA
AI-assisted development
Semiconductor
Power management
Embedded systems
RTL simulation
Hardware debugging
Firmware architecture
Agile
Embedded ethernet
Cloud power systems
Validation
System architecture
Embedded C
Debugging

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