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Founding Engineer (All Levels)

Promptless· Engineering
Apply on company site
San Francisco, CA$140k - $200k + equityfull-timePosted 11mo ago

About the role

A full-time founding engineer role focused on building AI-powered documentation tools, working across the React frontend, Python/Flask backend, and infrastructure, with experience in AI/ML and experimentation.

Responsibilities

  • Work on critical problems by designing and implementing features for the SaaS app and AI agent.
  • Ship production code used by real users across the entire stack, including frontend, backend, API integrations, and infrastructure.
  • Collaborate closely with customers and founders to solve their problems.
  • Experiment with and learn new AI techniques, leveraging experience with LLMs or similar applications.

Qualifications

  • Experience shipping production code used by real users.
  • Proficiency across the tech stack: React, Python/Flask, API integrations, Kubernetes.
  • Experience building applications with LLMs or AI agents, or contributions to open-source AI projects preferred.
  • Ability to experiment and learn new AI techniques.

Skills

Required:Full stack developmentFrontend developmentBackend development
Nice to have:AI/ML experimentation

Benefits

  • Connecting directly with founders of YC-backed startups.
  • Working on critical problems in a small, fast-growing team.
Last updated Mar 18, 2026. Interested? Apply on the company site.
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About Promptless

An AI teammate that automatically updates your customer-facing docs

Docs are integral to a great customer experience, but managing them is a challenging, multi-team effort. The most successful companies recognize that fantastic docs drive adoption and bad ones cause customers to churn. Promptless is used by fast-growing startups and Fortune 500 enterprises alike to automatically update docs based on feature releases, support tickets, internal Slack conversations, and more. Promptless is designed to be flexible—it can integrate with any docs platform, be triggered automatically from many workflows, and can pull in context from any internal knowledge source. With Promptless, documentation becomes a strategic advantage for growth, not a bottleneck or a liability.

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