Joseph K. Muiruri - SEA Case Story

About Joseph:  Dr. Joseph K. Muiruri obtained his Ph.D. in Material Science and Engineering (MSE) from the National University of Singapore (NUS). He has a master’s degree in Environmental Planning & Management from the University of Nairobi, Kenya. Previously, Joseph worked as a research scientist for 10 years and as the Head of the Textiles division for 2 years at the Kenya Industrial Research and Development Institute (KIRDI). Currently, he is a Senior Scientist I at the Institute of Sustainability for Chemicals, Energy and Environment (ISCE2) A*STAR. Sustainable biopolymers for packaging, natural fibre composites for high-end applications, circular economy, and sustainability metrics are among his research interests.View his member profile in the directory.

What brought you to this moment in your career where the Sustainability Excellence Associate (SEA) made sense for you?


My journey to this point in my career has been shaped by a deep commitment to sustainability, a passion for environmental responsibility, and a desire to make a meaningful impact on society. It all began in 2004 when I took my first step into the environmental field as a Health and Safety Officer. This role sparked my interest in understanding the relationship between human activities and environmental impacts, laying the foundation for my academic and professional path.


In 2011, I pursued a master's degree in Environmental Planning and Management, which allowed me to develop a stronger grasp on sustainable practices and solutions. Following my graduation, I worked as a Research Scientist, focusing on the value addition of natural materials, especially banana stems, which deepened my understanding of how underutilized resources can be transformed into valuable products in a sustainable manner.


In 2019, I earned a PhD in Materials Science and Engineering from the National University of Singapore, where I specialized in biopolymers and sustainable materials. My research revolved around closing the loop in resource use and creating innovative solutions to replace conventional plastics with biodegradable alternatives. This work further ignited my passion for creating sustainable materials for industries like packaging and cosmetics, aligning perfectly with the goals of the Institute of Sustainability for Chemicals, Energy, and Environment (ISCE2), where I began working in 2021. In this role, I apply my expertise to the development of biopolymers, biosolvents, and other sustainable solutions aimed at creating a circular economy in industries.


The Sustainability Excellence Associate (SEA) role felt like the natural next step in my career. The SEA's focus on creating impact through sustainability practices resonates with my long-standing commitment to sustainability. It allows me to apply my diverse background in environmental management, material science, and research to help drive forward real-world solutions to environmental challenges.



How are you putting the knowledge, skills, and ability demonstrated in the SEA to work in your career (or work) today?


The knowledge and skills developed through my SEA role have directly influenced my approach to work. At ISCE2, I am able to translate my research into actionable sustainability solutions in industries ranging from packaging to cosmetics. My expertise in material science and biopolymers plays a central role in designing alternative materials that reduce dependence on fossil fuels and minimize waste. I am continuously involved in interdisciplinary projects aimed at developing biobased solutions that promote circularity and reduce environmental impact.


The SEA framework has provided me with a clearer understanding of how to assess sustainability from both a strategic and operational perspective. It enables me to navigate complex challenges, such as scaling up sustainable processes and ensuring that new materials are not only eco-friendly but also economically viable for industries. The strategic mindset developed through SEA is crucial in aligning scientific research with business goals, ensuring that sustainability goals are integrated across the supply chain.



For those starting out in the sustainability field, what advice do you have for them?


For those new to sustainability, stay curious and keep learning. Stay updated on emerging research, technologies, and practices. A well-rounded understanding of sustainability’s environmental, economic, and social aspects is essential. Collaborate across disciplines, and be patient—progress may be gradual, but each step moves us toward a more sustainable future. 

Interested in earning your SEA credential? Download our free sample of the SEA Study Guide or sign up for the next SEA Study Cohort.

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