Josslyn Cai is a Research Associate at WestWater Research and is based in San Francisco, California. Josslyn brings over 6 years of diverse experience spanning management consulting, environmental engineering, and policy research. She conducts economics & valuation analysis, market research, and project management.

At WestWater, Josslyn leverages her background in water resource management and environmental engineering to conduct comprehensive water supply assessments, sustainability evaluations, and policy analyses for public and private sector clients. Her work encompasses resource planning analysis and the development of actionable solutions for water-related challenges across multiple jurisdictions.

Prior to joining WestWater, Josslyn served as a Sustainability Consultant at McKinsey, where she developed energy transition roadmaps and designed strategic frameworks for industry-leading companies. Her work include building and validating financial models and deriving strategic insights from comparative policy frameworks across different regions.

Josslyn’s experience also includes water resources engineering at Woodard & Curran, where she conducted water resource planning analyses for California municipalities. She utilized modeling software to assess site-specific hydrology and hydraulic conditions. Her experience at the Pacific Institute primarily includes conducting a study for the World Bank on integrating climate change considerations into sustainable water planning and management.

Areas of Expertise

• Water Resource Planning and Management
• Environmental Engineering and Sustainability
• Climate Change Adaptation and Policy
• Strategic Consulting and Financial Analysis

Education

• M.S., Environmental Engineering, Stanford University
• B.S., Atmospheric and Oceanic Science, University of California, Los Angeles

Experience

• Research Associate, WestWater Research, Present
• Sustainability Consultant, McKinsey, 2022-2025
• Water Resources Engineer, Woodard & Curran, 2020-2022
• Consultant/Researcher, Pacific Institute, 2019-2020