Senior Full Stack Engineer

ABOUT THE ROLE Join an early-stage healthtech team building AI-powered care coordination for people living with serious chronic conditions. As a senior individual contributor and product-minded engineer, you will help shape the product and engineering practices while building tools that support patients and their families. WHAT YOU'LL DO - Lead greenfield development for enterprise products and deliver related improvements to a consumer-facing application. - Partner with company leadership to shape the near-term and longer-term product roadmap. - Build, debug, and evaluate AI agents, including prompt design and evaluation harnesses. - Help establish secure, enterprise-ready systems and support HIPAA and SOC 2 compliance. - Mentor engineers, assign work, review code, and contribute to hiring as the team grows. WHAT WE'RE LOOKING FOR - Six to ten years of full stack engineering experience, including shipping user-facing products from 0 to 1 at an early-stage or high-growth startup. - Experience with React, TypeScript, Python, FastAPI, and cloud platforms such as AWS or Google Cloud, including Firebase and Firestore. - Production experience building with LLMs, including agent orchestration, prompt and context design, tool use, evaluations, guardrails, and observability. - Experience as a founding engineer, technical lead, staff-level engineer, or mentor to other engineers. - Healthcare or other regulated-industry experience is valuable, as is familiarity with HIPAA or SOC 2. - Strong front-end design engineering skills and experience with design tools such as Figma. COMPENSATION & BENEFITS Base salary: $185,000 to $210,000 annually. Visa sponsorship or transfer is not available. LOCATION On-site, five days per week in Boston, Massachusetts. Relocation assistance is not available.