The Senior Proposal Writer will be a member of the Business Development (BD) Department and work closely with the department and teams across the International Division to ensure the development and submission of highly competitive health sector proposals to US Government (USG) agencies, private foundations, non-US governments, corporations and multilateral funders. Applicants should have extensive experience with writing global health sector proposals and in-depth knowledge of the processes of responding to solicitations by entities such as the US Agency for International Development (USAID), the US Centers for Disease Control and Prevention (CDC), private foundations, and corporations. Must be a strategic thinker and excellent writer. This position will report to the Director of Global Business Development. They will also work closely with the Human Resources (HR) team. The position can be based in Boston, Washington DC, or be fully remote in any state JSI R&T is registered (AZ, AR, CA, CO, DC, FL, GA, IL, LA, ME, MD, MA, MI, MN, NH, NJ, NM, NY, NC, PA, RI, VT, VA, WA and WI).