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SIPPA (Students of IPPA)

Leadership Team

Leadership Team

The IPPA Work and Organizations Division – a forum for scholars, practitioners and organizations to collaborate on positive psychology research and application in the organizational realm – recently elected its inaugural Division President, President-Elect and Secretary. Please join us in welcoming the IPPA Work and Organizations Division Officers:

Nathalie Grand
President

Nathalie Grand is President of IPPA's Work and Organizations Division, a global community of more than 700 members. More

She previously served as the Division’s President-Elect and Head of Communications.

She helps leaders, teams and organisations build cultures where people and performance thrive, drawing on positive psychology, behavioural science, leadership science, and movement and nutrition science. With nearly two decades as a marketing and innovation executive at major multinational consumer-goods companies, she brings a uniquely practical lens to flourishing at work.

She holds the Certificate in Applied Positive Psychology (CAPP) from the University of Pennsylvania, a Master’s in Psychology (MSc) and a Master’s in Political Science (MA), and is a certified personal trainer and nutrition coach. Through her practice, she designs and delivers leadership and wellbeing programmes and supports individuals as a coach and therapist, focusing on resilience, emotion regulation and flourishing at work.

A former track and field athlete, Nathalie loves being outdoors, travelling and meeting new people. Walking the talk is a value she lives by.

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Lisa Sansom
Past-President

Lisa Sansom is the owner of LVS Consulting, using positive psychology tools and techniques with her clients through speaking, corporate training, consulting, and coaching. More

Lisa has been working in Organizational Development, Leadership Development and Change Management since 2000. She is a certified coach at the PCC level (with the International Coaching Federation) and has written several articles and chapters.

Lisa completed her MAPP (Master of Applied Positive Psychology) from the University of Pennsylvania in 2010, one of the first five Canadians to do so. She is also certified in Prosci Change Management, ShiftPositive 360, Designing Your Life (Stanford), Gallup Strengths Certified Coach, Process Management (Excellence Canada) and Change Cycle™. Lisa is currently enrolled in the DBA (Doctor of Business Administration) program at Royal Roads University researching the workplace impacts of positive feedback.

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Sunil Hasmukharay
Positive Organizational Intervention Challenge (POIC) Chair

Sunil Hasmukharay is a much sought after keynote speaker, professional facilitator & leadership coach in the areas of positive organization designs, leadership development, culture transformation and change management. More

Sunil is a catalyst in supporting organizations globally to reinvent their organization culture, build high performance teams,  re-design their Learning & Development strategies and cultivating Strengths Driven, Solution Focused Culture. In the last decade, he has developed more then 250 customized intervention, positively impacting more than 250,000 people in Asia Pacific, Africa, Europe and Middle East. All the interventions designed by Sunil are based on the Solution Focused approaches, Positive Psychology and Appreciative Inquiry.

Sunil is the Group CEO of HC Consultants Group and currently serves as a Council Member on Malaysia Institute of Human Resources Management (MIHRM). He is the Founder & President of Malaysia Positive Psychology Association (MPPA) and Co-Founder & Immediate Past President of Malaysia Association of Professional Trainers & Coaches (MAPTAC). In line with his vision to enrich people’s life and building happier corporate cultures, he founded the ASEAN Corporate Happiness Culture Community amongst the HR Community to drive corporate Happiness Culture in the region. Sunil currently serving as the Ambassador for Malaysia in the European Coaching & Mentoring Council (EMCC) Asia Pacific Region an contributed as a Subject Matter Expert in the development of the ISO standards for Learning & Development, ISO 30422.

Luis A. Marrero
Communities of Practice Facilitator

Luis is a founding member of the Work & Organization Division (W&OD). More

An author of two books, Luis pioneered Meaningful Purpose Psychology (Logoteleology) and Second Wave Organization Development (OD 2.0). He studies, publishes, and trains practitioners worldwide on meaning’s role in human thriving. His theory explains why, despite an abundance of solutions, individuals and organizations struggle to govern with a people-first mindset, and offers a logoteleological solution to overcome such challenges.

Luis co-facilitates a W&OD Community of Practice.

Luis is currently working on his next two publishing projects, THRIVE (2026) and Meaningantics (2027). He holds a BA in History from Siena Heights University and an MA in Human Resource Management and Transactional Analysis Psychology from the University of Puerto Rico, School of Public Administration. He lives in Westfield, MA, and Deltona, Florida.

Dr. Rona Hart
Co-Director of Communities of Practice

Dr Rona Hart is an Associate Professor in Applied Positive Psychology at the School of Psychology, University of Sussex, UK. More

She is a lecturer, researcher, practitioner and author specialising in Positive Psychology and Economic Psychology. Recently, she launched a pioneering interdisciplinary field – Positive Economic Psychology, which integrates these two domains. Rona is also a Co-Editor of the International Journal of Wellbeing, and served as guest editor for several special issues on Positive Economic Psychology, Flourishing at Work and Prosocial Organisational Behaviour. Rona Has published several textbooks on Positive Psychology and on Positive Economic Psychology, and has written and published numerous journal papers.

Therese Joyce
Co-Director IPPA’s Work & Organizations Division Communities of Practice

Therese Joyce is a leadership consultant, executive coach and facilitator based in Melbourne, Australia. More

She holds an MSc in Applied Positive Psychology and brings extensive international experience across leadership development, workplace wellbeing, positive education and organisational development.

Through her consultancy, Snow Daisy, Therese works with leaders, teams and organisations to translate research into practical approaches that strengthen leadership, relationships, psychological safety and collaboration. Her work spans government, corporate, education and community settings, with a particular interest in helping people work better together.

Therese was the inaugural Associate Director of the Centre for Positive Psychology at the University of Melbourne and has designed and delivered leadership and wellbeing initiatives in more than 17 countries.

She is Co-Director of IPPA’s Work & Organizations Division Communities of Practice and co-leads its Asia-Pacific community.

Outside work, Therese performs Afro-Brazilian percussion with Maracatu Estrela do Mar and trains in physical theatre.

Donald Officer
Leadership Committee Member

Donald R. Officer is a practising writer, editor, researcher, coach, facilitator, consultant, trainer and lecturer with over 30 years experience in the workplace, field and classroom. More

For the past 14 years he has also been active in the Positive Psychology community. Persistently seeking better ways to approach the future and how to live there, he is a strong advocate for rethinking our ideas on leadership and innovation.

A regular contributor to several blogs, websites and e-zines, he is a also a certified facilitator developing and delivering workshops to business, education, and public sector organizations. He has taught applied psychology to university undergraduates and maintains theintentioncoach.com blog. His goal is to help others better understand our changing workplace and culture while contributing to positive and applied psychology, through publication of science based books and articles.

Dr. Burak Koyuncu
Leadership Committee Member

Burak Koyuncu is a leadership and organizational development advisor, executive coach, board member, and educator with more than 20 years of experience in supporting leaders and organizations through their leadership, culture, and transformation journeys. More

He has held executive roles including Senior Vice President at LHH, leading the Leadership Development business across International Markets, and Global Product Development Lead and EMEA Solutions Lead at Accenture Strategy. Earlier in his career, he held full-time academic appointments at IE Business School, Wharton School, and NEOMA Business School. He still continues to teach as adjunct/affiliate faculty at London Business School, IE Business School and UCL School of Management.

In addition to his advisory, teaching, and coaching work, he regularly speaks and writes about leadership, transformation, and high-performing teams and cultures. His work has been published in leading academic and practitioner journals including Human Resource Management, Harvard Business Review, and MIT Sloan Management Review, and has also been featured in international media such as BusinessWeek, Financial Times, The Economist, and The Wall Street Journal.

He holds a PhD in Management (major in Organizational Behavior and HR) from IE Business School. He is also a certified executive coach and a Master-Practitioner in Neuro-Linguistic Programming.

Luiza Belkova
WOD Newsletter Communications Lead

Luiza Belkova is a change management consultant, coach, and positive psychology practitioner who helps individuals and organisations navigate change, build resilience, and create more meaningful ways of working and living. More

She brings experience in organisational change, communications, leadership support, and go-to-market transformation, and works as a Change Management Consultant with various companies. Her approach draws on positive psychology, behavioural science, coaching, and the Prosci ADKAR methodology.

Luiza is a certified life and lifestyle coach and an active member of the International Positive Psychology Association. She contributes to IPPA’s Work and Organizations Division through communications, member engagement, newsletters, and events. She presented at the IPPA World Congress in Vancouver in 2023 and has participated in the World Happiness Summit community as a coach facilitator since 2022.

She is also a co-author of a collaborative book featuring 16 coaches and is especially interested in positive psychology, identity, self-trust, and meaningful change.

Outside of work, Luiza enjoys travel, tango dancing, creativity, and exploring what helps people live with greater authenticity, joy, and connection.

Daniela Barrios Reyna
Program Manager, Positive Work Conversations. Leadership Committee Member

Daniela Barrios has always been curious about what makes a good life, especially as it relates to meaningful work. More

She is currently pursuing a Master of Applied Positive Psychology (MAPP) at the University of Pennsylvania, where she is developing what she calls Conscious Productivity, a framework that explores what productivity could look like if it were designed to support human flourishing. She explores that question every day as Operations & Project Manager at Scarlet Oak Consulting, a strategic planning firm that helps associations and nonprofits move from vision to implementation.

Daniela is also the founder of Una Idealista, a Spanish-language community of more than 35,000 people, where she creates content, workshops, retreats, and community-driven projects. As a Venezuelan immigrant, she cares deeply about making positive psychology accessible across cultures. At heart, Daniela is a thinker and a maker who loves finding creative ways to bring the science of flourishing into everyday life.

Vicki Cabrera
Past President

Vicki Cabrera, PhD, is a researcher, evaluator, and social impact consultant. More

Vicki Cabrera, PhD, is a researcher, evaluator, and social impact consultant. She is a Research Fellow at the Claremont Evaluation Center, Teaching Faculty at the Claremont Flourishing Center, and leads Vicki Cabrera Consulting, where she helps mission-driven organizations use evidence to create greater social impact.

With over 20 years of experience across the nonprofit, education, public, and business sectors in the United States and the Philippines, her work focuses on advancing well-being, workforce development, and social justice, especially for underrepresented and marginalized communities. As a scholar-practitioner, her research spans well-being, positive organizational psychology, evaluation and measurement, and social justice. Her research has been published in peer-reviewed journals and academic books, including The Journal of Positive Psychology and the International Journal of Applied Positive Psychology.

Vicki holds a PhD in Positive Organizational Psychology and Evaluation & Applied Research Methods from Claremont Graduate University and an MPA from New York University. She received IPPA’s 2025 Mihaly Csikszentmihalyi Top Dissertation Award and the Work and Organizations Division’s 2021 Exemplary Research to Practice Award. She is based in Los Angeles, California.

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Elizabeth (Liz) Corcoran
Past-President

Liz has been a member of IPPA for 16 years, enabling her to attend eight World Congresses. More

She has had the priviledge of presenting at the 2023 and 2021 Congresses. Liz received the prestigious James O. Pawelski Positive Catalyst Award at the 2021 IPPA World Congress for her contributions to IPPA and the WOD Division.

Liz, SVP Design of Impact Performance, has 23 years of experience leading an organization that specializes in research, program design, development, and facilitation of custom leadership, sales, and service solutions infused with positive psychology that enable organizations to deepen client relationships and ignite employee engagement. Liz has worked extensively with Fortune 500 companies to enhance sales productivity, enhance employee well-being, increase service effectiveness, and enable leadership and coaching skills in financial markets, manufacturing, healthcare, and retail industries.

Liz is a Certified Practitioner in Appreciative Inquiry, Strengthscope Coach, Daniel Goleman Emotional Intelligence Coach, International Coaching Federation ACC, and ATD member. Liz is Past President of IPPA Work & Org Division. She holds a BS in Marketing from Boston College, MBA from New York University, and Masters in Applied Positive Psychology from University of Pennsylvania. She resides in Wellesley, Massachusetts with her husband, Joe, and her three children.

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Giselle Timmerman
Past-President

Giselle was part of the Work & Org Division’s initial steering committee in 2012 and was elected President-elect in 2013.  More

She has enjoyed helping to get IPPA’s first professional Division off the ground and is committed to maximizing the Division’s value for its members.

After studying under Martin Seligman in his first Masters class (’05), Giselle has navigated a unique career path, starting as a management and strategy consultant applying positive psychology to strategy, leadership, and organizations. In 2012, she started her own company, Positive Work, where she designs and manages projects that help organizations build positive leaders, engaged and resilient teams, and exceptional work cultures. Giselle has worked with social, public, and private sector organizations, and with a range of global leaders, from community champions to Fortune 100 executives.

Giselle holds a Master’s degree in Applied Positive Psychology (MAPP) with a concentration in Organizational Leadership from the University of Pennsylvania and a BA in Psychology, Sociology, and Public Policy from New York University. She is an American currently living in Barcelona, Spain with her French husband and young daughter.