Senior ARM Firmware Engineer

At Canadian Solar, our vision is to make lives better by bringing electricity powered by the sun to millions of people worldwide. As a leading manufacturer of solar panels, inverters, and energy storage solutions, we've been an industry front-runner since our founding in 2001. Our commitment to sustainability is reflected in all parts of our organization as we navigate the complexities of a booming industry. Throughout Canadian Solar's subsidiaries, e-Storage, Recurrent Energy, MSS and CSI Solar Co., we invest in our employees' growth. Our training programs and promotional opportunities ensure we all can continue to learn. We understand the importance of work-life balance and provide various flexible work options to support our employees' well-being. Join our team to "Make the Difference" by creating a lasting positive impact on the world and the communities where we operate. 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 subsystemsDevelop and maintain real‑time firmware in embedded C/C++, including task scheduling, interrupt handling, drivers, and applicationsTranslate system, control, and grid‑code requirements into traceable firmware requirements and robust designsImplement inverter features such as communication, protections, fault handling, diagnostics, and monitoringSupport compliance with grid and firmware standards (UL 1741 SB, IEEE 1547, UL 1998) and certification testing activitiesCollaborate with hardware, controls, systems, and validation teams to ensure system‑level performance and reliabilityDebug complex firmware issues, perform root‑cause analysis, and optimize performance using lab tools and emulatorsParticipate in firmware architecture reviews, code reviews, and technical risk assessmentsMaintain 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 fieldAt least 5 years' of experience in professional firmware development experience in embedded or real‑time control systemsStrong experience developing firmware on ARM‑based processors (e.g., Cortex‑M, Cortex‑A) for industrial or power electronics applicationsProficiency in embedded C/C++, real‑time programming concepts, and interrupt‑driven designAbility to design and maintain board‑support packages (BSP), bootloaders, and device driversSolid understanding of grid‑tied inverter operation, digital control concepts, and protection strategiesWorking 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. #CanadianSolar