CAWST is a Canadian charity and licensed not-for-profit professional engineering consultancy teaching people how to bring safe drinking water, sanitation and hygiene in their homes, schools and clinics, using simple, affordable technologies.
At the heart of everything we do is our belief that when people have their basic water and sanitation needs met, they have the opportunity to succeed. This is what drives our dedicated team to work with a global network of more than 1,500 clients and partners. Together, we have reached over 70 million people since our inception in 2001.
Collectively, we are making a difference at a scale beyond what any of us could do individually. But our job isn’t done yet and we need you to help us expand our reach.
Benefits of Working at CAWST
Work that directly improves lives through safe water and sanitation.
A culture that values creativity, collaboration, and inclusion.
Global experiences and meaningful travel that contribute to improved WASH outcomes worldwide.
The Role: Full Stack Developer
Reports To: Senior Manager, Digital Services
Position start date: As soon as possible
Application due date: Applications will be reviewed on a continuous basis until the position is filled.
A full stack developer at CAWST is a team-oriented person who brings passion to their work and is excited about creating innovative solutions that enable people to take action on water, sanitation and hygiene issues. CAWST fosters a highly collaborative and driven team to deliver digital services and products to the people we help.
Please note:
Under the guidance of the Senior Manager Digital Services, you will play a central role in innovating, creating, and maintaining a large suite of web and application projects with the aim of scaling and supporting internal organization needs while developing products that ultimately deliver value to people around the world. You will manage multiple project deliverables simultaneously, while remaining agile in working across multiple technology stacks. You are a self-motivated problem solver, team player, and have a passion for making a difference in the world through the use of digital technologies.
Responsibilities
Design, build, and maintain backend features and APIs as per business needs
Collaborate & connect across the organization to ensure solutions meet both internal and external end-user needs.
Contribute to architecture and deployment planning, supporting an efficient infrastructure
Support frontend integrations to provide a streamlined user experience
Help modernize and maintain legacy projects as part of our ongoing platform updates
Test and debug across browsers and platforms to ensure consistent quality – globally
Participate in code reviews, share knowledge, and grow together within our small, multidisciplinary team.
Education and experience
Skills and technology stacks
When applying, please include:
A cover letter that tells us more about you past what we can see on your resume, and why you are excited to work with CAWST We will not consider your application unless this is included.
Please note: Your application will be read by real humans on our team, not an AI bot.
Your resume
CAWST values equitable opportunities, sustainable solutions, and collaborative and inclusive processes. CAWST recognizes and accepts differences in cultural, religious, and political processes and welcomes applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation, or age.

CAWST is a Canadian charity and licensed engineering firm. We address the global need for water, sanitation, and hygiene by building local knowledge and skills on household solutions that people can implement themselves. We were founded in 2001.