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Head Office Transversal Team

Executive Direction
Dr Serge BREYSSE, Chief Executive Officer.  Medical doctor with a degree in Public Health, Serge was the Director of the GloPID-R Secretariat, an alliance to bring together research funding organizations on a global scale to facilitate an effective and rapid research response for outbreak of emerging infectious disease with pandemic potential. He worked for more than 20 years in international solidarity organizations, particularly in Africa and Asia. He has created, developed and directed, within Action Contre la Faim, an innovative department combining advocacy, expertise and research. Serge Breysse has also been involved for more than 30 years in associative activities in France and abroad. He has participated in numerous scientific and more global publications. He has also been intervening in academic courses on international aid, global health and hunger issues
Operations Department
Sophie CALMETTES, Director of Operations. Former graduate of ESSEC, she also holds a Master’s degree in Public Health from the London School of Hygiene and Tropical Medicine. Sophie has more than 20 years' experience in project design, management and evaluation, and has an extended experience in health systems strengthening. She started working with Action against Hunger on the field as head of administration and finance, then she coordinated microfinance programmes at Groupe Developpement. She joined Solthis in 2007 as Director of Operations. In 2015 she became Solthis' Director of Development, in charge of coordinating new business development. In 2020 she was appointed Director of Operations


caroline gallais Caroline GALLAIS, Project Development Manager. Caroline graduated from Sciences-Po Paris. During a gap year, she worked for Solthis. After 6 months of training at headquarters in the lead, she attended for a year the Head of Mission in Niger, among others on the Niger program evaluation, and drafting of requests from the Global Fund. In August 2011, she has assumed the position of responsible for relations Donors and institutional funding.
Léa MERILLON, Convention Programme and Monitoring Officer. She graduated from the University of Paris I Panthéon-Sorbonne in International Relations & Action Abroad, and European Studies & International Relations in 2013. Then, she worked for more than 4 years in the field in different countries with Catholic Relief Services (CRS) and Danish Refugee Council (DRC), mainly in emergency and rehabilitation contexts. She was in charge of monitoring and evaluation in the Philippines, Nepal, Haiti and Iran, and project manager in Guinea as part of the Ebola outbreak. In April 2019, she joined Solthis as Convention Programme and Monitoring Officer.
Sandrine BOUILLE, Desk Manager Guinea-Niger-Sierra Leone. Sandrine BOUILLE holds a degree in Political Science from the University of Lausanne and a Master’s degree in Development Studies from the Graduate Institute of International and Development Studies in Geneva. She has worked for more than 10 years in the field in different countries (mainly in West Africa and South-East Asia) with the Sentinels and Humanity & Inclusion Foundation as Head of Mission and Programme Manager. She then moved to Paris where she worked in the Advocacy Department of Humanity & Inclusion, then as Head of Africa Programs of Asmae-Association before joining Solthis in December 2019.
Technical Department
sophie ouvrard 2 Sophie OUVRARD, Technical Department Director. Graduated in Pharmacy with a specialization in medical management at ESCP-EAP in 2002, she firstly worked in clinical development. In 2009, she joined Solthis as Phamacy Manager in Niger. In 2011, she joined the headquarters to work on pharmaceutical activities in Niger and Sierra Leone and  on projects about laboratories activities. In 2015, she became Pharmacy Manager and today, she is Director of the Technical Departement since 2020.


etienne guillard Etienne GUILLARD, Health Systems and Services Strengthening Director. After a clerkship in Pharmacy at the Pitie-Salpetriere hospital in 2000, he completed the Master in Environmental Research Health. After becoming a specialist in humanitarian pharmacy, he left in 2004 for Haiti and then Ecuador with Pharmacy and Humanitarian Aid. Two years later, his career took him to hospital pharmacy in France, where he specialized in HIV / AIDS. He joined Solthis late 2007 as a Pharmacy manager. Since 2015 he runs the Health systems and services strenghtening department.
Guillaume breton Dr Guillaume BRETON, Scientific Director.  Holding a medical degree, a Diploma in Internal Medicine, in infectious diseases and a Master on communicable and tropical diseases, he was clinical fellow at the Infectious and Tropical Diseases' Department of the Bichat Hospital in Paris. Since 2004, he is a hospital consultant in the Department of Internal Medicine and Clinical Immunology at the Pitié-Salpêtrière hospital in Paris. Former member of Solthis' Board, Guillaume was particularly invested on HIV / AIDS and tuberculosis issues and has already conducted several field missions in particular in sub-Saharan Africa. He has joined us in november 2015 to develop our scientific research activity in connection with the field teams and partners.
Céline BAYAC, Community Health and Gender Referent. Graduated from ISPED in Engineering of Health Actions and Health Promotion, she also holds a master’s degree in Social and Cultural Anthropology, and she's specialized in community health and local development capacity building. She worked on the associative mobilization of PLHIV in Guadeloupe, she was project coordinator and consultant of projects on specific health issues such as HIV and HVC or on global health and health promotion. She has a background in guidance and technical support for populations, institutions and healthcare and social workers. She joined Solthis in 2016.
Mélanie VION, Civil Society Partnership Referent. Specialized in African studies and international cooperation at Paris I Pantheon Sorbonne and Columbia University. She has worked with Médecins du Monde and several community structures on promoting the health and rights of sex workers, as well as refugee populations. Working towards a holistic approach to health that takes into account the intersection of vulnerable situations experienced by people (health, social, legal) is at the heart of her approach. During her experiences, she was particularly involved in advocacy and advocacy against gender and status-related violence. She joined Solthis in 2018.
Camille ESTEVENIN, Development and Technical Assistance Officer. Graduated from Sciences-Po Strasbourg with a degree in Health Law and Policy, she also holds a Master’s degree in Public Health and Infectious Diseases. She joins Solthis as an intern in the Development Department in 2019, before taking up her position as Development and Technical Assistance Officer. Today, Camille is in charge of the development of technical assistance activities and contributes to the search for institutional funding.
Administrative and Financial Department
  Alexandra LEVY, Chief Financial Officer Graduated from Paris-Dauphine University and expert accountant , she worked as a financial auditor and consultant at PwC, mainly with associations, foundations and public organizations in the health and social protection sector. She completed this field experience with the NGO InterAide as a health micro insurance program manager in India for two years. She joined Solthis in 2018.
  David CACHET, Administrative and Financial Coordinator for Guinea, Sierra Leone and Côte d’Ivoire. Holder of a general engineering degree, he worked for 10 years in the oil and gas sector in Angola, the United Kingdom, France and Japan, before moving into humanitarian work in 2017. Then, he followed a training as HR and Finance Manager at Bioforce, then went on a one-year mission to Cameroon to coordinate the launch of an e-waste recycling project. He joined Solthis in April 2019 as Administrative and Financial Coordinator for Guinea, Sierra Leone and Côte d’Ivoire.
Human Ressources Department
Sophie Richard Sophie Richard, Director of Human Resources. Graduated with a Master’s degree in Administration and International Exchanges from U-PEC, specialising in Human Resources Management, she worked for 15 years with Action Contre la Faim. First in the field (Somalia, Ethiopia, Myanmar) where she developed national HR management policies, then at headquarters in support of HR managers in the field (Asia, Middle East, East Africa…) as a Referent, then Regional HR Manager. She joins Solthis as HR Director in September 2019.
Solène GUILLOIS, Human Resources Assistant.  With a law degree from the University of Lille, Solène joined Solthis as a trainee in the Human Resources department in 2019 before becoming the Human Resources Assistant in parallel with her Master II in International Project Management at the Ecole Supérieure de Commerce et de Développement 3A (ESCD 3A).
Communication Department
Rachel DOMENACH, Head of communications and fundraising. Graduated from Sciences Po Paris (School of Journalism), she worked in associative structures and in a communications agency where she was in charge of institutional budgets (Ministry of Finance) and then joined Alstom Group (institutional relations). This experience in both public and private sectors has then led her to work on issues of philanthropy and fundraising. She joined Solthis in January 2014 to support internal and external communications.
Jasmine IRAKOZE, Communications and fundraising officer. Graduated in strategy and communication policy from Bordeaux Montaigne University (ISIC), she joined Solthis communication department as an intern in 2016 before working as a marketing and communication assistant for CAMECA (designer and global supplier in metrological and micro analytics solutions). Since February 2017, Jasmine works as a communication and fundraising officer at Solthis, mainly in charge of Solthis projects communication.

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