As a Senior Thermal Performance Engineer, you will monitor and improve plant heat rate, reliability, and availability across our power generation fleet. You will use thermodynamics, data analysis, and project management expertise to optimize thermal efficiency and support economic dispatch in a wholesale utility environment. This role blends hands-on performance testing, engineering analysis, and cross-functional collaboration to drive measurable improvements in plant operations. What You’ll Do Lead fleet-wide unit performance testing initiatives, including heat rate, capacity, and system optimization studies. Provide advanced analysis of thermal performance KPIs and present actionable insights to senior leadership. Identify,