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Founding AI Engineer at Flint (San Francisco, CA)

Flint· San Francisco, CA·

Role details

Work type
Onsite
Employment
Full-Time

Job description

Role scope

  • Designing and implementing production-grade agentic systems that power web experiences and marketing workflows, leveraging advanced prompt engineering and multi-agent architectures to do so
  • Architecting and optimizing RAG (Retrieval-Augmented Generation) systems with context engineering
  • Strengthening our engineering processes through robust evals, observability, and testing
  • Developing and maintaining the core application across frontend, backend, and infrastructure
  • Shaping our technical vision and leading architectural discussions. You'll make foundational decisions that influence both Flint's technical architecture and engineering culture.
  • Creating and testing prototypes to gather rapid feedback from users

Basic qualifications

  • You are a product-first engineer
  • You have built and deployed AI products that real users depend on
  • You have extensive hands-on experience with prompt engineering, context optimization, and model fine-tuning
  • You have strong full-stack engineering skills with experience integrating AI into web applications
  • You regularly use AI IDEs like Cursor or Windsurf to code
  • You take ownership of problems from start to finish and are eager to learn whatever you need to succeed
  • You’re comfortable in a fast-paced environment with evolving requirements
  • You have enthusiasm for building MVPs and iterating based on user feedback

Preferred qualifications

  • You have experience using AI for design system automation and component generation.
  • You have a lived understanding of using a website builder (e.g. Webflow or Framer) and/or CMS (e.g. Sanity, Contentful, Strapi).
  • Former founder or early-stage founding employee experience.

Why work at Flint

  • Culture: Values-driven environment emphasizing ownership, transparency, humility, and fun. Employees are trusted to “design, build, lead, and own” without hiding behind titles.
  • Employee Satisfaction: High ratings across work-life balance (4.8/5), compensation (4.5/5), culture (4.6/5), and career development (4.5/5).
  • Growth Trajectory: Rapid headcount growth (+49% YoY) and expanding office locations offer career advancement opportunities.
  • Work Policy: Roles are primarily office/field-based in California (Roseville, Irvine, San Jose, Carlsbad). No explicit remote policy publicly stated.
  • Notable Perks: Recognized as a Best Place to Work; emphasis on teamwork and continuous learning; access to cutting-edge construction technology.

Application questions