Our team

Felicity joined Sphere in 2021. Prior to joining Sphere, she worked in education, tourism and heritage. Her roles have encompassed teaching, training and business development for the public and private sectors. She is co-founder and chair of Lake Aid, an association supporting displaced children and families in Annecy (France).

Felicity holds an M.A. in Classics and Art History from Cambridge University, a Post-Graduate Diploma in Museum Studies from the University of Leicester and a TEFL Certificate (Teach English as a Foreign Language). She speaks English and French.

Helen joined Sphere in 2025. Prior to joining Sphere, she worked in marketing and business development for multinational companies in Latin America and beyond. Her roles included project leadership, strategic negotiation, and coordination of initiatives with NGOs, government, and civil society. She is a co-founder of Red Verde de Venezuela and has led campaigns on environmental protection, public health, and children’s rights.

Helen holds a Master’s in Business Management and a Bachelor’s in International Affairs from the Central University of Venezuela. She speaks Spanish, English and French.

Tristan joined Sphere in 2017 as Learning & Training Manager, became Head of Communications & Learning Services in 2021, and started his current role in 2024. Prior to joining Sphere, he held various roles in the finance sector. He was a founding board member of Lake Aid, an association supporting displaced children and families in Annecy (France).

Tristan holds a degree in Computer Science from the University of Bath (United Kingdom), and since completed professional exams in accountancy (ACCA) and finance (CFA). He speaks English and French.

William joined Sphere in January 2023. Prior to this, he worked for twelve years with Christian Aid, ten years with Medair and three years as a senior consultant with various humanitarian and development organizations at international, national and local levels.

Through his work, William has spent time with communities affected by conflict, crisis or disaster in Zimbabwe, Kenya and India, and, more recently, Ethiopia, Moldova and Ukraine.

William holds a Master of Theology from St Andrews University in Scotland and a Business Administration (Strategy) certification from the Open University. He speaks English and French.

Zunaira joined Sphere in September 2024. With over six years of experience in the humanitarian sector, she has a strong background in leading advocacy, visibility, and digital marketing initiatives. Prior to joining Sphere, Zunaira worked as the Communication, Visibility, and Marketing Lead at Community World Service Asia, where she managed international training programs and developed and implemented impactful communication strategies for a wide range of projects.

Zunaira holds an MBA degree in Marketing from Bahria University and a Master’s degree in Political Science from the University of Karachi. She is certified in Google Ads and Analytics. She speaks English and Urdu.