
JUSTINE ROBERT
CO- FOUNDER & DIRECTOR
Justine’s first degree is in Geography and Environmental Studies from the
University of Dar es Salaam (UDSM). He’s currently finalizing his MSc. In
Biodiversity and Ecosystem Management at the Nelson Mandela African
Institution of Science and Technology in Tanzania. His dissertation focuses on
human-wildlife conflicts and coexistence. Justine has worked with Lion
Landscapes (Formally Ruaha Carnivore Project) as a research assistant with a
proven record of high performance in community-based conservation projects in
the Ruaha landscapes. He’s currently a co-founder and Director of TACCEI.

DAVIDE VALLI
PROJECT MANAGEMENT SPECIALIST
Davide Valli is a naturalist specialized in Wildlife Ecology and Nature Conservation. Since 2019, he has been continuously collaborating with NGOs, public institutions and private companies in Europe and Tanzania, planning and managing conservation projects, monitoring wildlife populations, collecting and analysing spatial data, and conducting environmental education activities to promote human-wildlife coexistence and find innovative and effective solutions for a sustainable development in agreement with the proper management of natural resources. “Thanks to TACCEI I can use my experience gained in different contexts to support the conservation of Tanzania’s wildlife and the livelihoods of the local communities”.

NDING’A ORKEYAROI
PROGRAM MANAGER
Nding’a holds a bachelor’s degree in Environmental Disaster Management from the University of Dodoma majoring in research and climate change. He advocates for regenerative grazing as an essential ally for food security, soil restoration and
carbon sequestration in grasslands in East Africa. Nding’a expands and brings
exposure to the community of researchers, producers, legislators, entrepreneurs
and concerned citizens working in the areas of regenerative agriculture and soil carbon enhancement.

NATOSIM SAILEVU
AGRICULTURE COORDINATOR
Natosim’s first degree is on Agronomy from the Sokoine University of
Agriculture (SUA) in Tanzania. She’s currently working towards her Masters of
science in Sustainable Agriculture. Her dissertation focuses on bio-pesticides and
their importance in sustainable agriculture in Tanzania. She brings in her expertise
in sustainable agriculture practices and plays a pivotal role in our farmer training
programs in rural Tanzania.

YOHANA MELIYO
COMMUNITY LIAISON OFFICER
Yohana is a teacher by profession. For years, Yohana has worked with a number of
organizations and schools both in teaching and management roles. At TACCEI,
coordinates and liaises the organization and the community. He also plays a
pivotal role in gender issues within the organization and the community.

SARAH LUKUMAY
OFFICE ADMINISTRATOR
Sarah holds a certificate in Community Development from the Local Government Training Institute (Hombolo) – Dodoma. She joined TACCEI in June 2023 as an Office Administrator. On a daily basis, Sarah takes care of our office including management of files and all the documents. She’s passionate about community and development-related issues.

JOSHUA LAIZER
FINANCE OFFICER
Joshua holds a bachelor of arts in economics from Ardhi University in Tanzania.
He has been working with a number of organizations in the areas of community
development and sustainable pastoralism in northern Tanzania. He’s a co-founder
and finance officer at TACCEI, bringing in his vast experience in financial
management in the nonprofit industry.