Senior ARM Firmware Engineer

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Who We Are

Welcome to e-STORAGE, a proud member of the Canadian Solar Inc. (NASDAQ: CSIQ) family! We’re leading the way in designing, building, and integrating advanced battery energy storage systems for utility-scale projects. Our mission? To accelerate the world’s renewable energy transition and create a more sustainable, resilient energy future for everyone.

With our innovative SolBank lithium-iron phosphate battery technology and comprehensive project services, we’re not just building products we’re powering communities and making a difference worldwide.

• Position Title: Senior ARM Firmware Engineer
• Department: Inverter Firmware
• Compensation: $100,000 – $150,000 + annual bonus
• Reports To: Director of Digital Inverter Firmware
• Location: Kitchener, Ontario – Hybrid

About the Role:

The Senior Embedded Firmware Engineer owns the design, development, optimization, and lifecycle support of embedded firmware running on ARM‑based processors used in grid‑tied inverters and utility‑scale energy storage systems. This role requires deep expertise in ARM Cortex‑M / Cortex‑A platforms, and real‑time development, inverter control support, and grid‑code compliance. You will play a critical technical role in delivering robust, certifiable, and high‑performance firmware that integrates tightly with power electronics hardware, FPGA/DSP subsystems, and system‑level

Responsibilities:

Architect, design, and implement embedded firmware for ARM‑based processors used in inverters, power converters, and energy storage subsystems

Develop and maintain real‑time firmware in embedded C/C++, including task scheduling, interrupt handling, drivers, and applications

Translate system, control, and grid‑code requirements into traceable firmware requirements and robust designs

Implement inverter features such as communication, protections, fault handling, diagnostics, and monitoring

Support compliance with grid and firmware standards (UL 1741 SB, IEEE 1547, UL 1998) and certification testing activities

Collaborate with hardware, controls, systems, and validation teams to ensure system‑level performance and reliability

Debug complex firmware issues, perform root‑cause analysis, and optimize performance using lab tools and emulators

Participate in firmware architecture reviews, code reviews, and technical risk assessments

Maintain clear firmware documentation and contribute to process improvement and release quality

Required Qualifications and Skills:

Educational background in Electrical Engineering, Computer Engineering, Computer Science or a related field

At least 5 years' of experience in professional firmware development experience in embedded or real ‑ time control systems

Strong experience developing firmware on ARM‑based processors (e.g., Cortex‑M, Cortex‑A) for industrial or power electronics applications

Proficiency in embedded C/C++, real‑time programming concepts, and interrupt‑driven design

Ability to design and maintain board‑support packages (BSP), bootloaders, and device drivers

Solid understanding of grid‑tied inverter operation, digital control concepts, and protection strategies

Working knowledge of grid‑code behaviour such as anti‑islanding, ride‑through, and grid support functions

e-STORAGE is Equal Opportunity Employer (EOE). Qualified applicants are considered for employment without regard to age, race, colour, religion, sex, national origin, sexual orientation, disability, or veteran status.

e-STORAGE uses AI-assisted tools during parts of the hiring process, including screening and workflow automation. All final hiring decisions are made by humans.

This is a current vacancy, and we are actively hiring for this position.

What It’s Like to Work Here

At e-STORAGE, you’re more than just an employee—you’re part of a team that values your ideas, your background, and your unique perspective. We believe that a culture of equity, diversity, and inclusion isn’t just the right thing to do—it’s the secret to our success. Here, you’ll find:

Integrity: We do what’s right, always.

Innovation: We encourage fresh thinking and bold ideas.

Quality: We take pride in delivering excellence, every time.

Customer Focus: We listen, we care, and we deliver.

Sustainability: We’re passionate about protecting our planet for future generations.

Why You’ll Love Working With Us

Join a global leader in renewable energy, backed by over 23 years of Canadian Solar experience.

Work on projects that matter—helping to build a cleaner, greener world.

Thrive in a supportive, collaborative environment where your growth is our priority.

Enjoy a competitive salary and a generous benefits package.

Want to join here is what we are looking For

The right mix of education, experience, and skills for the role.

Great communication, teamwork, and problem-solving abilities.

A true commitment to safety, ethics, and sustainability.

Your Rewards

We offer a competitive salary, performance bonuses, and a comprehensive benefits package—including health coverage, retirement plans, paid time off, and more.

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