$150K - $250K + equity

As Founding Software Engineer, you’ll build the systems that power AI-native websites, shaping the technical architecture and culture of a company defining the next era of the internet.

Role scope

• Build agentic systems that design and launch web experiences, leveraging cutting-edge AI techniques.
• Develop and maintain Flint’s core application across frontend, backend, and infrastructure.
• Design systems with robust evals, observability, and testing to push the frontier of AI reliability.
• Prototype rapidly with users and translate learnings into durable features.
• Lead architectural decisions that set Flint’s technical direction for years to come.
• Own projects end-to-end: from prototypes that test new ideas with users to production systems that serve as the foundation for our platform.

We’ve already tackled problems such as:

• SOTA applied AI for frontend code generation and design systems

• Novel UX patterns for AI-first software

• Distributed multiplayer systems for collaborative editing

• AST parsing and manipulation for generative code

  …and there’s much more ahead.

Basic qualifications

• You are a product-first engineer who cares deeply about user experience.
• You have strong full-stack engineering experience and are excited to work across the stack.
• You regularly use the latest AI-forward developer tools (Claude Code, Cursor, Copilot, etc).