2 months ago
Remote, WorldwideSenior
Base Salary
$130k - $140k/yr
Responsibilities
- Ship end-to-end full-stack AI projects using a Ruby on Rails backend and React frontend.
- Design and run experiments, A/B tests, and AI evaluations to validate features and measure impact.
- Build, integrate, and optimize AI infrastructure for reliable, production-level LLM inference.
- Improve processes, tools, and systems for scaling AI features into production.
- Stay current with AI research, techniques, and tools while collaborating with leaders and designers on feature design.
Requirements
- At least 6 years of experience as a full-stack engineer on high-traffic production applications.
- Strong proficiency with Ruby on Rails, MySQL or PostgreSQL, and ReactJS.
- Hands-on experience building and shipping AI features in production, such as RAG systems, AI agents, or LLM-powered tools.
- Experience designing and running A/B tests, AI evaluations, and other experiments.
- Ability to work autonomously, collaborate effectively, and operate in a fast-paced environment with ambiguity.
- Proficiency in English at CEFR Level C2 or ILR Level 5.
Benefits
- Fully remote work arrangement with flexibility and autonomy
- 35 days of paid time off annually
- Equity with ongoing refresh grants
- Company retreats twice a year in destinations around the world
- Benefits supporting health, wellbeing, and professional growth
Tech Stack
Categories
About Circle.so
Circle builds a white-label community platform for creators, coaches, educators, and businesses to run discussions, live streams, events, courses, and memberships in one place. Customers use it to manage content, payments, and member engagement under their own domain and brand. Founded in 2019 and headquartered in New York, the company is privately held.