Senior Performance Engineer

CSI Solar Co., Ltd; United Kingdom; Hybrid; GBP 50,000 - GBP 70,000; Full time

Job summary

A leading solar energy company in the UK is seeking a Senior Performance Engineer to troubleshoot complex performance issues in BESS and other systems. This hybrid role requires strong analytical skills and the ability to collaborate effectively with internal and external partners. You will ensure system security and reliability while minimizing downtime. The ideal candidate will have experience in commissioning, data analytics, and excellent communication skills. Enjoy a competitive salary and benefits in a diverse and inclusive environment.

Benefits

Competitive salary

Performance bonuses

Comprehensive benefits package

Qualifications

• Experience in troubleshooting and performance testing in BESS or power generating facilities.
• Ability to execute multiple projects while being detail-oriented.
• Travel flexibility and availability on short notice.

Responsibilities

• Diagnose performance challenges and collaborate with internal teams and vendors.
• Communicate issues effectively to stakeholders.
• Support performance testing as per contract requirements.

Skills

Customer-focused problem solving

Data analytics

Commissioning experience

SCADA protocols knowledge

Excellent communication skills

Tools

BESS design tools

Industrial communication networks

Job description

Sr. Performance Engineer page is loaded## Sr. Performance Engineerremote type: Hybridlocations: United Kingdom - Remotetime type: Full timeposted on: Posted Todayjob requisition id: 10000917At 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.**Senior Performance Controls Engineer - UK****Who We Are**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**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.**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*Canadian Solar is a leading manufacturer of solar panels, inverters, and energy storage solutions since 2001. Our friendly and dedicated team of sales and operations experts work with retailers and strategic distribution partners all over the globe to provide our residential, commercial and utility-scale solar solutions. Our commitment to sustainability is reflected in all parts of our organization as we navigate the complexities of a booming industry.