WINS Board members

Dr John Barrett, Ambassador (ret'd) (Chair)

Dr John Barrett is currently President of Portolan Global Inc. Past experience includes serving as President and CEO of the Canadian Nuclear Association. Dr Barrett also served as Canada’s Ambassador to the IAEA, where he chaired its Board of Governors and acted as Canada’s Ambassador and Permanent Representative to the Comprehensive Nuclear Test Ban Treaty Organization and to the United Nations in Vienna. In addition, he served as the Canadian Ambassador to Austria and to the Slovak Republic.

Mary Alice Hayward (Vice-Chair)

Mary Alice Hayward is founder and Principal of Hayward Consulting, a practice specialising in advising clients on nuclear energy, non-proliferation, and US national security issues. Prior, Ms Hayward served as Deputy Director General, Head of the Department of Management, at the IAEA. Before the IAEA, Ms Hayward was Vice President of Strategy, Government Affairs, and Advocacy at AREVA Inc. She also served with distinction in the US government for over 18 years in nuclear non-proliferation and nuclear energy policy areas.

Chris Chater

As Chief Technical Officer at URENCO Enrichment Group, Chris Chater is responsible for the management of technology, operations, engineering and design. He is also vice chair of ETC, a joint venture with Orano (formerly Areva) for the supply of centrifuges and related services. For the last 25 years, Mr Chater has concentrated on the front end nuclear fuel cycle. He has also worked in fusion research and decommissioning.

Ambassador Piet de Klerk

Ambassador Piet de Klerk has had a long career as a Dutch diplomat and still represents the Netherlands in projects like the International Partnership for Nuclear Disarmament Verification. Prior positions have included acting as Special Counterterrorism Envoy; lead Sherpa for the 2014 Nuclear Security Summit in The Hague, Netherlands; Ambassador to Jordan; and Human Rights Ambassador. Ambassador de Klerk also served as chair of the Missile Technology Control Regime, the Nuclear Suppliers Group and the UN Disarmament Commission. From 1998 to 2003, he worked for the IAEA as Director of External Affairs and Policy Coordination.

Kathleen Heppell-Masys

Kathleen Heppell-Masys has served as Vice-President of Nuclear Operations Oversight at Atomic Energy of Canada Limited since 2023 and previously served as Director General of Security and Safeguards at the Canadian Nuclear Safety Commission. She has a wealth of experience in the development of nuclear regulatory policies; in the regulatory oversight of nuclear safety, security, international safeguards, non-proliferation and safety management; and in operations effectiveness.

WINS Staff

Lars van Dassen Executive Director

Lars van Dassen has worked in the nuclear non-proliferation and security field for more than 30 years. At the Swedish Radiation Safety Authority, he was responsible for the implementation of international projects primarily in the field of nuclear security in Ukraine, Russia, Kazakhstan, Georgia, Moldova and the Baltic States, and he served as Acting Department Head, Section Head and Director for the Office for External Relations. He was sous-sherpa for Sweden at the Nuclear Security Summits held between 2010 and 2016.
His academic background is in international relations and political science. From 1993 till 2001, he was a scholar at the Peace Research Institute Frankfurt and the Department for Peace and Conflict Research at Uppsala University.

Pierre Legoux Director, Programme Implementation and Oversight

Pierre Legoux's responsibilities at WINS include programme design, operation, budget control, review and quality standards. Prior to joining the organisation in 2010, Pierre served as physical protection specialist at the IAEA’s Office of Nuclear Security, where he developed international recommendations and guidance documents for nuclear security and for strengthening the physical protection of nuclear and other radioactive materials in use, storage and transport. He is fluent in English and French.

Rhonda Evans Director, Programme Development and Partnerships

Rhonda Evans leads the development of new programmes and management of partnerships at WINS. She brings over 25 years of international and national experience in the field of nuclear safety and nuclear security to her position with WINS. Before joining WINS in 2017, she served as a senior nuclear security officer at the IAEA in the Division of Nuclear Security. Rhonda also has extensive experience in capacity building in nuclear security; has 30 years of experience in legislation, regulation, governance and assurance; and works to advance women in nuclear security.

Przemyslaw Michalski Director, Internal Services and Organisational Development

Przemyslaw Michalski is responsible for WINS' financial control systems, statutory reporting and grants management. He is also involved in WINS' financial strategy development and risk assessment. Prior to joining WINS in 2018, Przemek worked many years in the private sector in Poland and Austria in the field of finance. He holds the designation of Chartered Management Accountant and speaks fluent Polish and English, with working knowledge of German and Russian.

Whitney Kathryn Isaacs Certification and Training Manager

Whitney Kathryn Isaacs oversees an array of key initiatives within the WINS Academy, including the implementation of significant projects in Ukraine, supporting the development of specialised training courses, and administering the WINS Academy Certification Programmes. She is the primary liaison for WINS Academy learners, Alumni, and Ambassadors, ensuring seamless communication and engagement. Prior to joining WINS in 2020, she worked extensively in the field of higher education and academia. Whitney is fluent in German and English and has working proficiency in Spanish.

Suzanne Carlson Communications and Learning Manager

Suzanne Carlson develops and designs online and in-person training and certification courses as well as other learning materials and publications for WINS. To complement her academic background in global security and international relations, she has a master’s degree in learning design and is currently a doctoral candidate studying adult learning. Before joining WINS in 2019, she worked in publishing covering international news and the energy industry. In addition to being a native speaker of English, she is conversant in German, Turkish, Spanish and Portuguese.

Aleksandra Zilic Finance Manager

Aleksandra Zilic manages projects related to accounting and reporting, financial project control, forecasting and planning and the improvement of quality management system processes. Prior to joining WINS in 2014, Aleksandra worked for privately held companies and non-governmental organisations for 12 years in her home country of Bosnia and Herzegovina. She is fluent in Bosnian/Croatian/Serbian, English and German.

Anubhav Shrivastava IT Manager

Anubhav Shrivastava oversees the maintenance and development of WINS' IT systems, including the technical development of the WINS website, Academy, Alumni Network, Knowledge Centre and events. Before joining WINS in 2014, Anubhav acquired experience in IT services for website development, building automation and news media sectors. He is also interested in cybersecurity, data privacy and digital intellectual property. Anubhav is fluent in English, Hindi and has intermediate knowledge of German.

Asali Lugu Khamzayeva Senior Project Manager

Asali Lugu Khamzayeva joined WINS in 2024 as a Senior Project Manager. Her experience in the nuclear industry started in early 2000 with national uranium mining operator Kazatomprom in Almaty, Kazakhstan. Since then, she has been involved in many different areas of the nuclear industry and began working in the IAEA Division of Nuclear Security in 2016. She first served as a Nuclear Security Officer in front-end fuel cycle facilities security, and from 2020 she assisted the Division of Nuclear Security in promoting the INSSP programme with responsibility for 23 countries in the Central Asia and Southern African regions.

Nataliia Klos Senior Project Manager

Nataliia Klos is a nuclear security expert with more than 20 years of experience in the field of physical protection, including at the IAEA, the Ministry of Energy of Ukraine, the Ministry of Internal Affairs of Ukraine and the State Nuclear Regulatory Inspectorate of Ukraine. She is President, Co-founder and Board of Director Member of the Black Sea Women in Nuclear Network. Nataliia also has extensive experience in the international cooperation on the assistance to Ukraine under the framework of the Global Partnership Against the Spread of Weapons and Materials of Mass Destruction and Information Sharing Initiative. Her achievements include initiating and founding the Nuclear Security master's programme at the National Technical University of Ukraine’s Igor Sikorsky Kyiv Polytechnic Institute.

Viviana Espinosa Moreno Senior Project Manager

Viviana Espinosa Moreno leads WINS initiatives on nuclear security competence and capacity building worldwide with a strong focus on Latin America. Her portfolio includes projects centered on emerging and advanced technologies as well as engaging the next generation of nuclear security professionals. Her academic background is in social and cultural anthropology and international development. Viviana is fluent in Spanish, English and German.

Bethany Woodward Visual Design Manager

Bethany Woodward is responsible for managing all of the print and digital graphic content produced throughout WINS. With a background in spatial design, she worked as a designer in both the UK and USA in the retail & marketing and architecture sectors before joining WINS in 2019. Bethany is fluent in English and has a working knowledge of German.

Anida Čeliković Finance and HR Coordinator

Anida Čeliković’s responsibilities centre around projects related to accounting, financial controlling and the improvement of quality management system processes as well as providing financial and administrative services for the WINS team. Prior to joining WINS in 2017, Anida worked in the fields of education, translation and interpreting, as well as in the public sector. Anida speaks fluent Bosnian/Croatian/Serbian, English and German.

Tatjana Todic Office Manager and Executive Support

Tatjana Todic provides operational, administrative and HR support; assists with WINS projects and events; and serves as Board Liaison Manager. Before joining WINS in 2022, Tatjana gained experience in human resource management, office management and project management at UNIDO, CTBTO and UNODC. Her academic background is in international business and international relations. Tatjana is fluent in Bosnian/Croatian/Serbian, English and German.

Polina Nechytailo Project Assistant

Polina Nechytailo is a main point of contact for WINS Academy learners and WINS Members. She also supports the preparation of WINS Academy projects and the organisation of events. Before joining WINS in 2022, she worked as a guide in the Chornobyl Exclusion Zone. Polina has a degree in natural sciences. She is fluent in English and Ukrainian and is currently studying German.

Luka Čekić Project Officer

Luka Čekić manages administrative tasks and provides support for WINS projects and events. Prior to joining WINS, he worked in project management and his academic background is in political science. His areas of interest encompass international politics and relations, nuclear non-proliferation and security, as well as disarmament and arms control. Fluent in Bosnian/Croatian/Serbian, German, English and Greek, Luka is also conversant in French.