Joshua Zacharia Mollel is an Assistant Lecturer in the Department of Mechanical and Industrial Engineering (Textile Section) at the University of Dar es Salaam, Tanzania. He holds a Master of Science in Apparel, Merchandising, and Textiles from Washington State University (WSU), USA, and a Bachelor of Science in Textile Design and Technology from the University of Dar es Salaam. During his studies at WSU, he received several recognitions, including Second Prize in the Marriott Linen Makeover Design Competition, Second Place in the Three Minute Thesis (3MT) Competition, and the Graduate Student Instructor Award.
His areas of specialization span apparel merchandising (management), design, and textiles. He has published in peer-reviewed international journals, including Research Journal of Textile and Apparel, Family and Consumer Sciences Research Journal, and Young Consumers.

Mr. Mollel has contributed to applied research and innovation initiatives, including the development and commercialization of reusable face masks during the COVID-19 pandemic, as well as the development of measurement and material specifications for University of Dar es Salaam graduation gowns. He has also been involved in the development of textile and fashion curricula for National Technical Awards (NTA) Levels 4 to 8 and in the preparation of secondary school textbooks in clothing and textiles. In addition, has participated in symposia and professional forums as a presenter and panelist, and has also been invited as a guest speaker in media engagements on topics related to apparel and textiles.
Prior to joining academia, he worked in the textile and apparel manufacturing industry, progressing to managerial responsibilities and supporting production, quality compliance, and export coordination with international stakeholders.
At the University of Dar es Salaam, he teaches courses in apparel merchandising, design, and textiles, and is actively engaged in research, consultancy, and community outreach.