Meet Our Team

Senior Management Team

Dr. Elizabeth Hausler

Elizabeth Hausler, Ph.D.
Founder & CEO

World-class social entrepreneur. Safe housing advocate. Bricklayer. Dr. Elizabeth Hausler is the Founder and CEO of Build Change and a global expert on resilient housing, post-disaster reconstruction, and systems change. Elizabeth’s strategic direction and leadership have grown Build Change from a few employees in 2004 to a global team spread across five continents. She has profoundly influenced global development policy by making resilience a major consideration for reconstruction efforts.

Read more about Elizabeth!
Sibel Berzeg headshot

Sibel Berzeg

A highly experienced leader of international development projects across the globe, Sibel Berzeg has overseen effective implementation of projects in more than 35 countries and some of the world’s most challenging and complex environments. Her experience includes more than nine years of field-based leadership experience (Chief of Party and Regional Director) in nine countries spanning the former Soviet Union, Latin America, South Asia and Kosovo.

Read more about Sibel!

Lizzie Blaisdell Collins, P.E., S.E., LEED AP
VP, Engineering

Lizzie Blaisdell Collins is one of the world’s foremost authorities on the creation of building standards in the developing world where they never existed before. As an expert in earthquake-resistant engineering honed over 15 years of experience designing housing for high-seismic regions, Lizzie oversees the quality of Build Change’s technical and project solutions around the globe.

Read more about Lizzie!

Juan Caballero, Architect, PMP
VP, Programs

Juan Caballero has pioneered the use of seismic retrofitting for existing housing in international development. He is a noted disaster-resilient housing advocate and a trusted advisor to governments, multilateral organizations, and other partners on how to improve housing quality throughout Latin America and the Caribbean.

Read more about Juan!

Sharon Cooley
VP, Development

Sharon Cooley brings over 25 years of experience working on international development programs across the globe. She is a preeminent business development professional who has led the proposal and development function for large and small organizations, worked in city government, and served on the Board of Directors of the Society for International Development, elected to the post by industry peers.

Read more about Sharon!

Manuela Pinilla Rodriguez
Country Program Director, Colombia

Manuela Pinilla Rodriguez combines her training in urban development and international cooperation with her background in anthropology to take a human approach to solving social and economic challenges. Over the course of the last decade, she has worked on both the national and international levels to improve access to water for hygiene and sanitation, as well as in post-disaster response, land rights and housing access.

Read more about Manuela!

Antoine Williams
Director of US Programs – South

Antoine Williams develops and enhances collaborative efforts and projects with city governments and private stakeholders in the south region as part of Build Change’s preventive strategy for the United States. Previously, he directed economic development programs of service, Tax Increment Finance programs, capital improvement project planning and management, and public-private partnerships.

Read more about Antoine!

Louise Foulkes
Caribbean Program Manager

Louise Foulkes is the Caribbean Program Manager and a structural engineer, primarily focused on Build Change’s reconstruction and resilience projects in the Caribbean. She joined Build Change in 2017 after working in the UK and East Africa.

Diane Datteri, CPA

Diane Datteri is an expert in nonprofit accounting with more than 25 years of experience supporting charitable organizations in Colorado and Wyoming.  At Build Change, Diane is responsible for the day-to-day management of Finance and HR.

Read more about Diane!
Sarah Wissler headshot

Sarah Wissler
Marketing and Communications Director

Sarah Wissler brings a background in professional services marketing and higher education communications to her role at Build Change. She is excited to amplify Build Change’s initiatives through creative storytelling opportunities and to partner with the organization’s global communications teams.

Read more about Sarah!

Mediatrich Triani N
Indonesia Partnership Manager

Ani has led and supported several large-scale post-disaster recovery programs in Indonesia and the Philippines. She has developed and overseen initiatives related to resilience and disaster prevention for school and housing in Indonesia. Ani is an advocate for disaster-resilient housing and has led the Build Change advisory group on retrofitting options with the World Bank, as well as evaluation of the national housing subsidy program, in partnership with the Ministry of Public Works and Public Housing.

Read more about Ani!

Monica Schroeder
Director of Global Advocacy

Key Staff

Finance and Administration Staff

Bianca Rios
Global Office Administrator (HQ Global)

Kailash Khadka
Finance & Admin Manager – SE Asia Pacific (HQ Global)

Maria Fernanda

María Fernanda Holguín Alvarado
Finance & Admin Official (Latin America)

Ferney Giraldo
HR Manager (HQ Global)

Camilo Andres Angel
Accounting and Administrative Assistant (Colombia)

Winda Waspada Sari
Indonesia Finance & Admin Officer (Global – Indo)

Advocacy and Development Staff

Lily Khambata
Major Gifts Officer (HQ Global)

Martina Will

Martina Will, Ph.D.
Senior Grant Writer/Fund Development Officer (HQ Global)

Cristina Arevalo
LAC Fund Development Manager (Colombia)

Program Management Staff
Engineering Staff

Liva Shrestha
Lead SE Asia-Pacific (HQ Global)

Stefano Pompei

Stefano Pompei
Technology for Engineering Project Manager (HQ Global)

Adriana Duque Pardo
Engineering Professional (Latin America)

Roel Ombao
Project Manager – Technical Services (Philippines)

Oluwaseun Okusanya
Engineering Program Associate (HQ Global)

Tim Hart
Senior Advisor, Engineering (Global)

Alejandro Guerrero Andrade
Engineering Professional, BIM Specialist (Global)

Anna Pavan
Engineering Consultant (Global)

Camilo Rodriguez Munoz
Engineering Assistant (Colombia)

Rafael Sanchez
Colombia Technology Civil Engineer (Colombia)

Charles Ciro Tabares
Engineering  Professional (Colombia)

Samantha Kay Lisay
Designer Architect (Philippines)

Sofia Andrade
Lead Engineer (Colombia)

Raquel Lagramada
Senior Builder Trainer (Philippines)

Technology Staff

Nirmal Adhikari
Technology Program Manager (Global – Nepal)

Samriddhi Chitrakar
Application Developer (Global – Nepal)

Niush Sitaula
Full Stack Developer (Global – Nepal)

Puspa Subedi
Wordpress Developer (Global – Nepal)

Communications Staff

Maria Camila Ordonez Valencia
Communications Officer (Latin America and Caribbean)

Marvin Riego
Program Officer (Philippines)