Senior Software Engineer, Fullstack

Persons in these roles are expected to work from our offices in Seattle. On-site requirements vary based on position and team. If you have questions about on-site work arrangements for this role, please ask your recruiter. Our base salary range is $126,000 - $189,000, and in addition we have generous bonus plans to provide a competitive compensation package. Who You Are: You are a seasoned full-stack engineer who thrives in greenfield environments where you have broad scope and the opportunity to wear multiple hats. You excel in building impactful, AI-powered solutions and take pride in delivering intuitive, high-performance user experiences. In this role, you'll work closely with UX designers, AI/ML experts, and research scientists, both internally and at partner institutions, to create seamless interfaces that empower users to interact effectively with our AI systems. You're energized by the opportunity to collaborate directly with researchers to translate their needs into production applications that advance real scientific discovery. Who We Are: The Agentic Applications team builds open, production-grade AI systems that power scientific discovery. We focus on developing intelligent agents that help researchers explore literature, synthesize knowledge, and accelerate their work across real-world scientific use cases. The team combines strong engineering practices with close collaboration across Ai2's product and research orgs to deliver tools used by millions of researchers and developers worldwide. Your Next Challenge: The essential functions include, but are not limited to the following: Work closely with UX designers, product managers, and research scientists to develop rich UI experiences using React and robust backend services in Python Engage in the entire software development lifecycle, from ideation and design to implementation and testing to deployment and operational support, with a strong sense of ownership for results Scale our systems in a cost-effec