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Senior Full-Stack Software Engineer, Applied AI

6 hours, 38 minutes ago
Anywhere
Full-time
Senior
Full-stack Engineer
Software Development
LLM MySQL PostgreSQL React Ruby on Rails
Apply Now
Circle

Circle

Circle (circle.so) is an all-in-one community platform that empowers creators and brands to build engaged communities directly integrated into their products or websites. With Circle, businesses can combine interactive community features with their con...

Media
51-250
Founded 2019
View All Jobs 2

Description

  • Ship full-stack AI projects end to end on a Ruby on Rails backend and React frontend.
  • Design and run experiments, including A/B tests and AI evaluations, to validate features and guide iteration.
  • Build and integrate AI infrastructure components for production-level inferencing.
  • Optimize AI systems for performance and reliability.
  • Improve processes, tools, and systems to scale AI features into production-ready solutions.
  • Stay current with cutting-edge AI research, techniques, and tools.
  • Collaborate closely with Circle’s leaders and designers during feature design.
  • Prioritize rapid iteration, experimentation, and learning while maintaining code quality and user experience.

Requirements

  • 6+ years of experience as a full-stack engineer on high-traffic production applications.
  • Strong proficiency with Ruby on Rails, MySQL/PostgreSQL, and ReactJS.
  • Hands-on experience building AI features in production, such as RAG systems, AI agents, or LLM-powered tools.
  • Experience shipping at least one real AI use case, not just prototypes.
  • Strong experimentation mindset with experience designing and running A/B tests and measuring results.
  • Comfort working in a fast-paced, ambiguous environment and learning new technologies as needed.
  • Ability to work with both frontend and backend, with strong proficiency in at least one area not strictly required in both.
  • Strong alignment with Circle’s values.
  • Proficiency in English at CEFR Level C2 or ILR Level 5.

Benefits

  • $130,000 - $140,000 USD per year.
  • U.S.-benchmarked compensation globally.
  • Equity in the company with ongoing refresh grants.
  • 35 days of paid time off each year.
  • Fully remote-only work with flexibility and autonomy.
  • Company retreats twice a year in destinations around the world.
  • Benefits package supporting health, wellbeing, and professional growth.

Interested in this position?

Apply directly on the company website

Apply Now

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