Senior AI Engineer—LTE

The Bill & Melinda Gates Foundation is hiring a Senior AI Engineer for a 3-year limited-term position in Seattle, WA. The role involves designing and building modern AI systems, including agentic AI systems and retrieval pipelines. The position offers comprehensive benefits and relocation assistance

The Bill & Melinda Gates Foundation is seeking a Senior AI Engineer for a 3-year limited-term position in Seattle, WA, to design and build modern AI systems. The Foundation is the largest nonprofit fighting poverty, disease, and inequity worldwide, and this role is part of the Institute for Disease Modeling team, which develops computational modeling tools to support global health efforts.

With a team of research scientists and software developers, the Senior AI Engineer will work on projects with real-world impact for global public good.

The Senior AI Engineer will work on designing and building modern AI systems, including agentic AI systems, retrieval pipelines, and backend services. The role involves collaborating with researchers, analysts, and program staff to translate domain problems into shippable systems for global health and development.

• Design and build agentic AI systems using modern LLM frameworks
• Build and operate retrieval systems, including ingestion, chunking, embeddings, and knowledge-graph-backed retrieval
• Design AI evaluation pipelines and benchmarks
• Architect, implement, and maintain scalable backend services and APIs
• Develop data pipelines and workflows leveraging Azure and Hugging Face
• Harden successful prototypes into production

The ideal candidate has a Bachelor’s degree in a technical field with 5+ years of building production software, or equivalent experience. An advanced degree is a plus, but not required.

• Proficiency in Python, including for AI work
• Hands-on experience building LLM-powered applications and designing backend APIs and services
• Comprehensive medical, dental, and vision coverage with no premiums
• Generous paid time off and paid family leave
• Foundation-paid retirement contribution and regional holidays

To apply, candidates should submit their application through the provided link. The application process involves submitting a resume and cover letter, and may include additional steps such as interviews or skills assessments.

• Submit resume and cover letter
• Complete any additional application steps, such as interviews or skills assessments
• Wait for the hiring team to review application and contact candidates for further steps

The Senior AI Engineer position is located in Seattle, WA, and relocation assistance is provided.

The Senior AI Engineer position is a 3-year limited-term position.

The Bill & Melinda Gates Foundation offers comprehensive benefits, including medical, dental, and vision coverage, paid time off, and paid family leave.

The ideal candidate has a Bachelor’s degree in a technical field with 5+ years of building production software, or equivalent experience, and strong general-purpose backend engineering skills, proficiency in Python, and hands-on experience building LLM-powered applications.

To apply, candidates should submit their application through the provided link.

The Bill & Melinda Gates Foundation is committed to creating an environment for employees to thrive both personally and professionally, with a focus on innovation, teamwork, and collaboration.