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SkylightSkylightUnited States

Senior or Staff Back End Engineer, AI Features

Seasoned backend engineer building AI-powered features in Ruby on Rails, integrating with LLMs (OpenAI, Google, Anthropic) and owning zero-to-one product initiatives. Requires 6+ years experience shipping products end-to-end.

180k – 240k
Remote6+ YOEBackend Engineering

About the role

What You'll Do

  • Design, build, and launch new user-facing features powered by large language models (LLMs)
  • Own major product initiatives from zero-to-one, in partnership with a small team
  • Collaborate deeply with Product and Design to shape new products and features
  • Integrate with third-party APIs like OpenAI, Google, etc., and explore new model capabilities
  • Contribute to our codebases in Ruby on Rails
  • Write maintainable, high-quality code with strong test coverage
  • Mentor other engineers through code reviews and design discussions

Requirements

  • 6+ years experience building software products end to end
  • Deep mastery of either Ruby on Rails or another similar back end language
  • Demonstrated ability to ship zero-to-one products as a solo engineer or team lead
  • Experience with OpenAI, Anthropic, or similar LLM providers
  • Clear communication and collaboration skills across disciplines
  • Startup experience strongly preferred

Nice to Haves

  • Familiarity with prompt engineering or retrieval-augmented generation (RAG)
  • Prior work on family-facing or consumer social products

Benefits

  • Competitive Salary + Equity Package
  • 401K matching
  • Wellness, learning, and home-office budgets
  • Health, Dental & Vision Medical Plans
  • Tremendous autonomy to set the direction of your work
  • Unlimited PTO
  • Company holidays on the first Friday of every month (Except November & December)

Skills

Ruby on RailsOpenAIAnthropicLLM APIsPrompt EngineeringRAGBackend Development

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