Sina Lengelsen-Brown is a Principal Innovation Programs at Climate-KIC Australia and a Research Principal at the Institute for Sustainable Futures (ISF), University of Technology Sydney, where she leads and manages national and international innovation, research, and systems transformation initiatives focused on climate action, sustainability, and societal impact.

Drawing on expertise spanning innovation, entrepreneurship, research translation, and systems change, Sina designs and delivers complex multi-stakeholder projects that bring together government, industry, academia, investors, and communities to address sustainability challenges. Her work is underpinned by a strong commitment to gender equality and empowering women founders, with particular expertise in entrepreneurship support, commercialisation, collaborative practice, facilitation, and capacity building for climate and social impact innovation.

Over the last eight years, Sina has directed the design, development, and delivery of Climate-KIC Australia's entrepreneurial and innovation programs, supporting and accelerating nearly 600 entrepreneurs, researchers, innovators, and impact ventures. Her experience spans climate and clean technology innovation, social impact entrepreneurship, investment readiness, educational program design, strategic project management, and the development of innovation ecosystems that drive systemic change.

At ISF, Sina contributes to applied sustainability research and policy evaluation. Her recent work has included research supporting the independent review of the Product Stewardship (Oil) Act 2000, examining the effectiveness of Australia's Product Stewardship for Oil Scheme in encouraging the reprocessing of waste oil and reducing environmental harm. 

Sina is also the Network Designer and Project Manager for the Collaboration Network for Systems Transformation (CNST) Industrial Regions Network (IRN), a national initiative that supports collaboration, learning, and systems innovation across Australia's industrial regions as they navigate the transition to a net-zero economy. In this role, she leads network design, stakeholder engagement, monitoring, evaluation and learning (MEL), and the facilitation of cross-sector collaboration between industry, government, research organisations, and communities to accelerate regional transformation and strengthen innovation capability.

Prior to joining Climate-KIC Australia, Sina fostered EU-Australian dialogue and cross-institutional collaboration between policymakers, industry, and academia on climate change, energy challenges, regional governance, innovation, and entrepreneurship at the European Union Centre on Shared Complex Challenges at the University of Melbourne. She designed and facilitated the Collaborative Climate Leaders Lab for the City of Greater Geelong and led the creation of an international medical research collaboration platform spanning 14 countries.