At a high level, the Senior Performance Engineer is managing the portfolios of solar PV generating fleets. This is an internal stakeholder and external customer facing role. Key responsibilities will center around maintaining operating indicators at high levels, alerting service managers of trending issues, providing research and analytical support for diagnosing field problems, creating and executing on plant betterment action plans, and developing advanced computational methods. Also, as a core member of the O&M team, the Senior Performance Engineer may be involved in complex contract negotiations as the representative subject matter expert. The Senior Performance Engineer will grow into a high-level position and will eventually become an expert on solar generation theory as well as data evaluation and diagnostic techniques.