Application Guide
How to Apply for Senior Researcher, Water
at GiveWell
🏢 About GiveWell
GiveWell is a nonprofit that uses rigorous evidence and cost-effectiveness analysis to identify the most impactful giving opportunities in global health and development. Their focus on transparency and data-driven decisions makes them a unique and influential player in effective altruism. Working here means contributing to saving lives and improving well-being through meticulous research.
About This Role
As Senior Researcher for Water, you will lead the evaluation of water quality and access interventions, from evidence review to cost-effectiveness modeling and grant recommendations. This role is impactful because it directly shapes millions of dollars in funding toward the most effective water programs, potentially preventing waterborne diseases and improving lives. You'll also mentor junior researchers and drive new research areas.
💡 A Day in the Life
A typical day might involve reviewing recent studies on water quality interventions, updating a cost-effectiveness model in Excel, and meeting with a grantee to discuss monitoring data. You'll also draft a memo summarizing your findings for the research team and later mentor a junior researcher on their project. Afternoon might include a call with a donor interested in funding water programs.
🚀 Application Tools
🎯 Who GiveWell Is Looking For
- Has deep expertise in water interventions (e.g., water quality, sanitation, hygiene) with a track record of applying rigorous research methods like systematic reviews and cost-effectiveness analysis.
- Demonstrated ability to lead complex research projects end-to-end, from scoping to final recommendations, and to mentor junior researchers.
- Strong quantitative skills, including experience with modeling (e.g., cost-effectiveness, impact projections) and interpreting diverse evidence (RCTs, observational studies).
- Excellent communication skills, able to synthesize technical findings for non-expert donors and partners, and comfortable with external presentations.
📝 Tips for Applying to GiveWell
Tailor your resume to highlight specific water intervention research (e.g., chlorination, filtration, sanitation) and any cost-effectiveness modeling you've done.
In your cover letter, explicitly connect your past work to GiveWell's mission and methodology—show you understand their focus on evidence and impact per dollar.
Prepare a writing sample that demonstrates your ability to critically review evidence and make a clear recommendation (e.g., a past research report or blog post).
Mention any experience with grantmaking or advising donors, as this role involves direct funding recommendations.
Research GiveWell's existing water investigations (e.g., on chlorination programs) and be ready to discuss how you would improve or expand their approach.
✉️ What to Emphasize in Your Cover Letter
['Your expertise in water interventions and evidence-based evaluation, with specific examples of past research and its impact.', "How you align with GiveWell's mission and your understanding of their cost-effectiveness framework.", 'Your leadership and mentoring experience, especially with junior researchers.', 'Your ability to communicate complex findings to diverse audiences, including donors and partners.']
Generate Cover Letter →🔍 Research Before Applying
To stand out, make sure you've researched:
- → Review GiveWell's published research on water interventions, particularly their cost-effectiveness analyses and grant recommendations.
- → Understand GiveWell's 'room for more funding' concept and how it applies to water programs.
- → Read about GiveWell's history and how they evolved from general charity evaluation to focusing on top charities.
- → Familiarize yourself with key debates in the water, sanitation, and hygiene (WASH) sector, such as the sustainability of interventions.
💬 Prepare for These Interview Topics
Based on this role, you may be asked about:
⚠️ Common Mistakes to Avoid
- Don't submit a generic application—show you've researched GiveWell's specific approach and water work.
- Avoid overstating the certainty of evidence; GiveWell values intellectual honesty and handling uncertainty.
- Don't neglect to mention quantitative skills; this role requires modeling and data analysis, so provide concrete examples.
📅 Application Timeline
This position is open until filled. However, we recommend applying as soon as possible as roles at mission-driven organizations tend to fill quickly.
Typical hiring timeline:
Application Review
1-2 weeks
Initial Screening
Phone call or written assessment
Interviews
1-2 rounds, usually virtual
Offer
Congratulations!