Waleska Guerrero Lemus is a senior specialist in sustainability and climate strategy, public‑private partnerships, and sustainable infrastructure systems with over a decade of experience supporting UN agencies, governments, and global industries. She has led high‑impact programmes across Europe, Latin America, Africa, and Asia, shaping policy, strengthening institutional capacities, and enabling climate‑aligned development.

Her expertise spans circular economy, sustainable trade, environmental and social assessments, and results‑based management, with a strong track record designing digital platforms and project preparation systems adopted at national level. Waleska has delivered strategic advisory for multilateral development banks, coordinated PPP tenders in seven markets, and developed global frameworks such as UNECE’s People‑first PPP Guiding Principles.

She is recognized for her ability to integrate sustainability into complex sectors—trade, infrastructure, healthcare, tourism—and for leading multi‑stakeholder processes that translate climate goals into actionable, measurable solutions. Her work consistently strengthens governance, improves project performance, and supports countries in advancing resilient, future‑ready development pathways.