Senior Performance Engineer

Canadian Solar Inc.; Bristol; On-site; GBP 65,000 - 85,000; Full time

Job summary

A leading renewable energy company is seeking a Senior Performance Engineer to troubleshoot complex performance challenges in battery energy storage systems. You will work closely with internal teams and external vendors to validate solutions and ensure system reliability. The ideal candidate has strong analytical skills and troubleshooting experience in power generating facilities. Join a mission-driven team focused on sustainability and innovation while enjoying competitive compensation and benefits.

Benefits

Competitive salary

Performance bonuses

Comprehensive benefits package

Health coverage

Retirement plans

Paid time off

Qualifications

• Demonstrated experience in customer-focused problem solving.
• Ability to execute projects and tasks in parallel, self-directed, highly detail-oriented, organized and flexible.
• Experience troubleshooting using data analytics.
• Experience in commissioning, performance testing, maintenance, and/or design of BESS or other power generating facilities.
• Knowledge and experience with SCADA protocols (i.e. DNP3 and Modbus).
• Familiarity with industrial communication networks (fiber optics, network switches, TCP/IP, etc.).
• Excellent communication skills.
• Ability to travel up to 20% of time, on short notice.
• Demonstrated experience in problem solving.

Responsibilities

• Prioritize, investigate, and drive corrective actions for performance issues.
• Troubleshoot and conduct root cause analysis using various means.
• Validate software/firmware updates with stakeholders.
• Communicate issues effectively to vendors and stakeholders.
• Support performance testing as required.
• Contribute to fleet-wide improvements.
• Collaborate with teams for performance enhancement.
• Document issues and resolutions.
• Ensure compliance with safety protocols and engineering standards.

Job description

Senior Performance Engineer - UK

Ready to Make a Real Impact? Join e-STORAGE!

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.

Role Overview for Senior Performance Engineer

In this role, you’ll bring together the sharp analytical mindset of a controls engineer and the hands‑on problem‑solving instincts of a commissioning engineer to efficiently troubleshoot complex issues and pinpoint root causes on operating systems.

You’ll take ownership of diagnosing performance challenges and work closely with internal teams and external vendors to drive solutions, validating and evaluating firmware and software updates to ensure system security and reliability, minimizing downtime.

Your insights will feed back to internal teams and product improvements to drive a cycle of continuous improvement.

If you thrive on tackling new challenges, enjoy rolling up your sleeves, and love the satisfaction of solving problems that matter, this role keeps you continuously engaged and at the center of meaningful, hands‑on innovation.

What You’ll Be Doing as a Senior Performance Controls Engineer

• Prioritize, investigate, and drive the corrective action for performance issues identified during facility operation.
• Troubleshooting and root cause analysis using data analysis, first principles, on site investigation, or other means as needed.
• Validate software/firmware updates in coordination with vendors, the site service team, and relevant stakeholders to confirm documented changes and no unintended consequences are introduced. Coordinate subsequent rollouts with the appropriate site service teams.
• Effectively communicate issues to the appropriate vendor and stakeholders to ensure resolutions are identified and implemented.
• Support performance testing as required under individual contracts for each facility.
• Contribute to fleet wide efforts for improving the efficacy of monitoring and analysis processes and tools.
• Collaborate with internal teams to provide input to improve performance across the business from applications and design to project execution and commissioning to service.
• Provide documentation of issues and resolutions for tracking, knowledge sharing, and internal and external communications.
• Ensure all activities are performed in compliance with safety protocols, engineering standards, and company policies.

What You’ll Bring to the Position

• Demonstrated experience in customer-focused problem solving
• Ability to execute projects and tasks in parallel, self-directed, highly detail-oriented, organized and flexible
• Experience troubleshooting using data analytics
• Experience in commissioning, performance testing, maintenance, and/or design of BESS or other power generating facilities
• Knowledge and experience with SCADA protocols (i.e. DNP3 and Modbus)
• Familiarity with industrial communication networks (fiber optics, network switches, TCP/IP, etc.)
• Excellent communication skills
• Ability to travel up to 20% of time. Travel may be on short notice
• Demonstrated experience in problem solving

What It’s Like to Work Here

• 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.

Our Commitment to Equality & Diversity

At e-STORAGE, we know that diverse teams drive innovation and better results. We’re committed to creating a workplace where everyone feels respected, valued, and empowered—regardless of age, race, gender, ability, or background. When you join us, you’re joining a community that celebrates your uniqueness and supports your success.

— Libby, Sr. Global HR Manager