Firmware Developer III

Toronto, ON
On-site
Posted Oct 10, 2026
1 position

$80,026–$110,009 / year

Opens an external site

Employment type: Full-time
Experience level: Senior · 6+ years
Minimum education: Bachelor’s degree
Posting language: English
Working hours: 40 hours per week

Job summary

The developer will design, develop, and enhance embedded software for IoT water network products throughout the entire design lifecycle. Responsibilities include code development, debugging using lab equipment, unit testing, and providing technical guidance to the engineering team.

Job details

Who We Are: Thank you for your interest in Mueller Water Products, Inc. For more than 165 years, Mueller Water Products, Inc. has been building the future of water infrastructure. From lifesaving fire protection to data intelligence, we are committed to developing products and solutions that help cities and utilities deliver clean, safe drinking water to hundreds of millions of people across North America. Our purpose is to connect communities to water, life’s most essential resource, with exceptional, people solutions and products. Behind that purpose is a dedicated team, united by our shared values of respect, integrity, trust, inclusion and safety. With a vision to be the leader in water infrastructure solutions—solving challenges, enriching lives and safeguarding the future—we are making a positive impact that will last for generations. By joining Mueller, you become part of a dynamic team dedicated to excellence and innovation, working collaboratively to achieve meaningful results. We champion our people because when they succeed, our communities thrive. We invite you to learn more about career opportunities with us and consider submitting your application. Vacancy Disclosure: This posting is for an existing vacancy within our organization that we are actively seeking to fill. Firmware Developer III Description: We are looking for a motivated team player to be part of our embedded software design team, where they will play a key role in designing, developing, and enhancing our industry-leading IoT water network products. Our products are deployed in large numbers globally and assist our customers in managing critical water infrastructure. The successful candidate will have a passion for developing embedded software systems; a keen eye for reliable embedded software design, and the methodologies needed to achieve it; and a tenacity for problem solving and debugging, leaving no stone unturned in the pursuit of quality and performance. Collaborating with internal stakeholders and a multi-disciplinary engineering team, they will help to guide our products through every step of the design lifecycle: from inception all the way through sustaining engineering. Required Education & Experience: Bachelor’s degree in electrical & electronics engineering, computer science, or similar degree 6+ years of experience in firmware development 4+ years of experience with embedded C programming language Required Knowledge, Skills, Abilities and Other Competencies: Working knowledge of the internal architecture of MCUs to enable making use of a variety of peripherals Working knowledge of hardware to facilitate integration efforts, including reading hardware schematics and using test equipment like oscilloscopes, logic analyzers, signal generators, and power supplies Ability to understand binary protocols and comfortable working with binary data Experience with multi-threaded programming Familiarity with Linux Experience with source code management/versioning tools and practices Familiarity or interest in using AI-assisted coding and testing tools (e.g., GitHub Copilot or similar) to accelerate development and improve quality Ability to produce detailed technical documentation Strong problem solving and analytical skills Demonstrably excellent organizational, communication and interpersonal skills Ability to work both independently and as a team contributor Candidate must be eligible to travel to the United States and maintain a valid passport These are considered assets: Experience with audio signal processing Experience writing production code on Digital Signal Processors Experience with Python and MATLAB/Octave Working experience with FreeRTOS Experience with ARM Cortex-M family of MCUs Experience with GPS/GNSS and cellular modem modules Experience with battery operated and low power applications Experience with TCP/IP Experience within an Agile development environment Experience applying AI/LLM-based tools for embedded code generation, code review, or automated test case generation Responsibilities: Provide input to design architecture and system requirements Implement detailed designs based on provided requirements Provide advice on technical problems and review project work for technical accuracy and adequacy Firmware (embedded software) development based on system requirements. This includes code development, unit test development, as well as design and development documentation Development level testing throughout the implementation process which includes code debugging and participating in code reviews Debugging code by incorporating hardware signals and lab equipment Production level code debugging to find the root cause of and fix bugs that occur infrequently and only on statistically significant sample sizes (1000+ devices) Produce well documented and easy to read code Support products from release to quality assurance through to field trials and production including fixing bugs reported by QA Generation of BSPs and chip drivers Leverage AI-assisted development and testing tools (e.g., code generation, code review, and automated test generation assistants) to improve development velocity, code quality, and test coverage Participate in an Agile development environment Other duties as assigned Working Conditions: Office Environment Travel up to 1-2 weeks per year Salary/Pay Range: $80,026.00-$110,009.00 CAD The compensation range above reflects a good-faith estimate of starting base pay for full-time (40 hours per week) employment as of the date of posting. Individual compensation may vary depending on a variety of factors, including, but not limited to, the role, professional experience, job-related skills, achievements, and/or work location. The range listed is only one component of the total compensation package offered to candidates. Other Compensation & Benefits: Mueller offers a competitive salary and benefits package. Current benefit offerings include: medical, dental, and vision insurance; retirement plan with 5% company match; Employee Stock Purchase Plan (ESPP); short-term and long-term disability benefits; paid time off; Pregnancy & Parental Leave Top Up; tuition reimbursement; an Employee Assistance Program (EAP), and more. Accommodation: If you require accommodations during any stage of the application or interview process, please let us know. We are happy to work with you to meet your needs. Mueller collects and maintains resumes for a period of 3 years for consideration of future opportunities.

What you’ll do

Requirements

Candidates must hold a bachelor's degree in electrical engineering, computer science, or a related field. The role requires at least 6 years of firmware development experience and 4 years of experience with embedded C programming.