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Job Description & How to Apply Below
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:
Commissioning Engineer
Department: Engineering
Entity: e‑STORAGE
Reports To:
Commissioning Manager
Location:
Ontario, Canada
About Us
e‑STORAGE is a subsidiary of Canadian Solar and a leading company specializing in the design, manufacturing, and integration of battery energy storage systems for utility‑scale applications. The Company offers its own proprietary LFP battery solution, comprehensive EPC services, and innovative solutions aimed at improving grid operations, integrating clean energy, and contributing to a sustainable future. e‑STORAGE has successfully implemented over 3.3 GWh DC of battery energy storage solutions in various locations, including the United States, Canada, the United Kingdom, and China.
This significant accomplishment solidifies e‑STORAGE's position as a key player in the global energy storage integration industry. Currently, the Company operates two fully automated, state‑of‑the‑art manufacturing facilities with an annual production capacity approaching 20 GWh. e‑STORAGE is fully equipped to continue providing high‑quality, scalable energy storage solutions and contribute to the widespread adoption of clean energy.
About the Role
The Commissioning Engineer is part of a cross‑functional team that focuses on executing battery storage projects with market‑leading technologies. The Commissioning Engineer is responsible for testing and commissioning oversight activities of Battery Energy System Storage (BESS) projects from the Pre‑Commissioning phase through to Substantial Completion to ensure successful execution and operation of the BESS project. The Commissioning Engineer is expected to spend over 75% of their time at the project site.
Responsibilities
Align commissioning scope, goals, and schedule with owners, O&M, design, and construction.
Build commissioning plans, checklists, and functional test documentation to standards.
Review drawings/documents to flag scope gaps and clarify responsibilities early.
Execute on‑site commissioning and keep scope, schedule, and stakeholders aligned.
Coordinate communication across internal teams and external parties (utilities, AHJs, contractors).
Lead daily Plan of the Day (POD) meetings with equipment suppliers.
Review FAT procedures and reports to confirm equipment readiness.
Run site walkdowns to align plans, schedules, and commissioning checklists.
Troubleshoot installation/commissioning issues and drive resolution to closure.
Capture lessons learned, improve processes, and support O&M training/hand‑off.
Required Qualifications and Skills
Bachelor's degree in Electrical Engineering or equivalent combination of education and practical experience.
5 years of experience in commissioning and/or systems engineering within an energy storage integrator and/or EPC environment.
Direct experience with BESS commissioning/testing or related electrical systems (e.g., MV stations/substations, inverters, transformers, switch gear).
Strong capability in equipment specifications, technical bid evaluations, and procurement support for major electrical equipment.
Working knowledge of construction/project execution controls (RFIs, submittals, NCRs, change orders, as‑built).
Technical proficiency in MV electrical design/analysis concepts (ampacity, short circuit/load flow,…
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