Senior Management Team

Elizabeth Hausler
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.

Tim McLellan

With a commitment to innovation in resilience and public health that spans the globe, Tim McLellan brings a passion for international development to his role as President. He leads finance and operations at Build Change in order to create a dynamic environment for Build Change engineering, access-to-finance, and advocacy specialists to thrive and optimize their impact.


Bob Taylor
Chief Technology Officer (CTO)

Bob Taylor joined Build Change with more than 30 years of experience in the technology industry, having worked from hands-on software development all the way up to the executive level. He brings both strategic and tactical leadership to the Build Change technology teams, and is focused on growing the impact of Build Change through innovative technology and business development.


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 codes 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.

Juan Caballero
Architect, PMP VP, Programs, Latin America and Caribbean

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.

Mardi Mapa-Suplido
Country Director for the Philippines and Indonesia

Mardi Mapa-Suplido joined Build Change in March 2021 following 30 years in top management positions across government and the non-profit sector in the Philippines and Southeast Asia. Mardi’s expertise includes strategic planning, policy dialogue, multi-stakeholder collaboration, and social mobilization honed across years of leading international development organizations and projects with donors such as USAID, CIDA and AusAID.

Manuela Pinilla Rodriguez
Country Program Manager, 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.

Tim M. Hart
P.E., S.E., LEED AP Engineering and Design Services Director; 2020 Simpson Strong-Tie Fellow for Excellence in Engineering

Tim M. Hart has 30 years of structural engineering and building construction experience across nine countries. Tim believes in the power of resilient housing to change lives, and has worked with Build Change since the organization’s early days. In addition to his role as Engineering and Design Services Director, Tim is the 2020 Simpson Strong-Tie Excellence in Engineering Fellow.

Diane Datteri
CPA Controller

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.

Michelle Ruhlin Nicholson
Director of Marketing & Communications

Michelle Ruhlin Nicholson is a Marcomms jack-of-all-trades who has led or supported campaigns, events and projects in more than 30 countries for diverse groups of donors and stakeholders. She tells the story of Build Change’s innovative approach to resilient housing and enhances the visibility of Build Change’s initiatives worldwide.


Key Staff

Finance and Administrative Staff

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

Kailash has worked with Build Change as part of the Nepal senior management team for nearly 5 years. He specializes in the responsibilities of Finance, HR, Logistics and Administration Management.

Jonalyn Bantilan
Finance & Admin Manager (Philippines)

Jonalyn is a Certified Public Accountant and is studying for her Juris Doctor in Law. She has a 19 years’ solid experience in Finance and Accounting through a range of start-ups and well-established companies.

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

María Fernanda (also known as Mafe) is a professional in finance and international trade and has been working for Build Change since August of 2017. She is responsible for the Administrative, Financial and Human Resources areas of the organization in Latin America.

Bianca Rios
Office Administrator (HQ Global)

Bianca holds a degree in business and has eight years of experience in administrative as well as customer service roles. She excels in organization and works to make a positive impact through her office management and operational support of the Build Change team.

Advocacy and Development Staff

Monica Schroeder
Associate Director, Global Advocacy (HQ Global)

Monica works to elevate the issue of resilient housing and prevention of housing loss. Prior to joining Build Change, Monica managed the implementation of democracy and governance programs in more than 15 countries, advanced policy reforms, and advised nonprofit organizations on the design and implementation of advocacy campaigns.  Monica holds a Master’s in Government from Georgetown University and a Bachelor’s degree in Romance Languages and Literature from the University of Notre Dame. She is fluent in Spanish, French, and Italian, and speaks conversational Arabic.

Danielle May
Senior Grant Writer / Fund Development Officer (HQ Global)

Danielle May harnesses her craft as a storyteller and connector to lead Build Change’s grant fundraising efforts. She brings 14 years of experience in diversifying nonprofit organizations’ funding base and stewarding tactical partnerships.

Lily Khambata
Technical Writer / Document Production Manager (HQ Global)

Lily’s background is in educational publishing. In 2016, she changed paths to support post-disaster reconstruction in Latin America and the Caribbean, working in Ecuador, Peru, Puerto Rico, and Dominica. Lily combines her experience to develop content that will bring our expertise to a wider audience. She recently completed an MA in Development Studies (Institute of Development Studies, UK).

Program Management Staff

Girlie Lopez
Project Manager, Housing Finance (Philippines)

Girlie Lopez’s passion is creating access for low-income families to financial services. Over the last 17 years, Girlie has become one of the Philippines’ foremost microfinance specialists...Read More!

Kim Acupan
Project Manager (Philippines)

Kim is responsible for the development and end-to-end management of post-disaster “build back better” and pre-disaster resilient housing and school programs in the Philippines. She is a civil engineer with a postgraduate degree in business administration.

Engineering Staff

Stefano Pompei
Technology for Engineering Project Manager (HQ Global)

Stefano graduated in 2011 and worked, as a structural engineer, in Italy, Peru, and Ecuador.  Stefano joined Build Change in 2016 and since then he has been involved in different Build Change programs, such as Nepal, Haiti, and Federated States of Micronesia.  He is responsible for implementing project work plans and trainings in Latin America.

Adriana Duque Pardo
Engineering Professional (Colombia)

Adriana works on technical resource development in Latin America, evaluates housing vulnerability, supports on structural retrofitting of housing, checks bills of quantity and construction inspection checklists, provides technical assistance to homeowners to design safe houses, supervises construction, and trains builders in disaster-resistant construction practices.

Liva Shrestha
Lead SE Asia-Pacific (HQ Global)

Liva is responsible for controlling the quality of design information and implementation for projects in the Southeast Asia-Pacific region. With 14 years of experience in the field of structural engineering, Liva has been involved in retrofit and confined masonry house designs, construction of school buildings, along with conducting research and testing program, quality control of design information, project implementation management and activities monitoring.

Roel Ombao
Project Manager – Technical Services (Philippines)

Roel is responsible for managing the Philippines technical team in developing resources aimed at specific audiences and partners to support disaster resilient housing. He is a civil engineer with 10 years of experience in structural engineering and project implementation in telecom and industrial projects.

Oluwaseun Okusanya
Engineering Program Associate (HQ Global)

After graduating from UC Davis in 2007, Oluwaseun worked as a structural engineer for Strandberg Engineering in the San Francisco Bay Area. In 2015, he transitioned into the humanitarian sector with All Hands and Hearts before joining Build Change in 2018. His role supports our international team of engineers to make safe construction accessible to as many people as possible.

Louise Foulkes
Engineering Program Associate, LAC Lead (HQ Global)

Louise is 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.

New Frontiers Technology (NFT) Staff

Nirmal Adhikari
NFT Coding Hub Manager (HQ Global)

Nirmal develops coding solutions, provides technical assistance, and manages the development of several mobile, web and AI-based applications. He has 5+ years’ experience with a wide range of systems and applications such as web, Business Intelligence (BI), and Geographic Information System (GIS) along with 3+ years’ experience teaching college programming languages courses. He graduated from London Metropolitan University with a Bsc. Computing (Hons) degree and is a member of British Computer Society (BCS) and International Association of Engineers (IAENG).

Allie Young
BIM Technologies Specialist (HQ Global)

Allie helps develop new technologies for the New Frontiers Technology team, focusing on building information modeling and automating BIM workflows for retrofitting solutions. She has supported Build Change programs in Nepal and Colombia. She studied civil engineering and global development.