Senior Full-Stack Engineer

To drive innovation through AI applications, the remote full-time Senior Full-Stack Engineer will develop end-to-end AI solutions using Ruby on Rails and React, design and run experiments, and optimize AI infrastructure for production-level performance. Key responsibilities Ship full-stack AI projects end-to-end on a Ruby on Rails backend and React frontend Design and conduct experiments, including A/B tests, to validate AI features and guide iterations Build and optimize components for AI infrastructure to support production-level inferencing Required qualifications 6+ years of experience as a full-stack engineer on high-traffic production applications Strong proficiency in Ruby on Rails, MySQL/PostgreSQL, and ReactJS Hands-on experience building AI features in production, such as RAG systems or LLM-powered tools Strong experimentation mindset with experience designing and running A/B tests Proficient in English at a CEFR Level C2 / ILR Level 5