This role requires a Product Engineer / AI Engineer with over four years of software engineering experience, specializing in full-stack development to enhance user experience and platform capabilities within the life sciences regulatory domain. The candidate must have strong proficiency in the specified tech stack, including Next.js (Pages Router), React, Tailwind CSS for frontend development, and Python with FastAPI for backend services. Experience with PostgreSQL databases and deployment on cloud platforms such as Digital Ocean is essential. Key responsibilities include improving UI/UX, integrating diverse datasets to broaden regulatory coverage, optimizing data ingestion pipelines, and enhancing retrieval and answer generation within retrieval-augmented generation (RAG) pipelines. Additionally, the role involves building internal applications to assist domain experts in tuning AI agentic capabilities, with opportunities for direct customer engagement and AI engineering projects. The position demands a high ownership mindset, the ability to work independently in a fully remote environment, and availability for partial overlap with Eastern Time (GMT-5). Candidates should be comfortable with asynchronous, written-first communication, rapid iteration, and minimal meetings, reflecting a culture of autonomy and trust. Willingness to travel for periodic offsite meetings is required. This contractor role offers flexible hours starting at 20 per week with potential to increase, compensated between $30 and $60 per hour depending on experience. Overall, the ideal candidate combines strong full-stack development skills, AI engineering experience, and a proactive, self-driven approach to contribute effectively to a cutting-edge AI platform serving life science regulatory needs.