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Prompt Engineer

Saroot Labs

AI Prompt Engineer Full-time
United States September 7, 2026

Job description

About the role

Design, test, and refine the prompts and instructions that power Saroot Labs' AI agents — from computer-use workflows to 3D world generation. You'll turn product requirements into reliable LLM behavior, build evaluation frameworks, and iterate until outputs meet production quality.

Responsibilities

  • Design and maintain prompts, system instructions, and tool-use patterns for AI agents
  • Build evaluation sets and rubrics to measure output quality across tasks and edge cases
  • Iterate on prompts based on production failures, user feedback, and quality reviews
  • Document prompt patterns, best practices, and version changes for the team
  • Collaborate with engineers and operators to ship prompt improvements into live workflows

Skills

Prompt engineeringLLMsChatGPTClaudeGeminiEvaluation designTechnical writingStructured testingAgent workflowsCritical thinking

Core AI-native role

Candidates must be comfortable working alongside AI employees, using AI tools daily, reviewing AI-generated outputs, delegating tasks to AI systems, and operating in AI-human collaborative workflows. Experience with ChatGPT, Claude, Gemini, Cursor, Copilot, or similar is strongly preferred.

**Ready to apply?**Join Saroot Labs and work on prompt engineer at the frontier of AI.

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Frequently asked questions

What does Saroot Labs do?
It works on two things: an AI computer-use agent that can operate interfaces, browse, and write and run code without human input, and systems that generate photorealistic 3D world videos from language prompts. It describes the combination as agents that operate in the digital world and generate the environments they inhabit.
What roles are open and are they remote?
It lists 31 positions, all marked SF/USA and Remote and full-time. The most accessible cluster is its AI-Native category: Human-in-the-Loop Operator, AI Workflow Operator, AI Quality Reviewer, AI Operations Specialist, and Prompt Engineer, open at one to four years of experience.
Do I need to be an engineer?
Not for the AI-Native roles. The Human-in-the-Loop Operator listing asks for attention to detail, critical thinking, written communication, a QA mindset, and practical experience with ChatGPT, Claude, Gemini, Cursor or Copilot, rather than a formal engineering background.
What does Saroot Labs pay?
Unknown. No compensation appears on any of the 31 listings, checked directly on the individual job pages. Get pay in writing before committing time, and ask what equity is included given the company's stage.
Should I be cautious about the number of openings?
Calibrate expectations. Company databases report roughly $55,000 raised and a 2026 founding, which cannot fund 31 simultaneous full-time hires, so the board likely reflects pipeline building rather than 31 funded seats. Confirm a specific role is funded and has a start date before investing much time.
Who runs Saroot Labs?
Not disclosed. The site has a team page, but it renders headings with no names, photos, or logos, and no founder or executive is identified anywhere on the site. Its facts page likewise contains only market statistics from Gartner and McKinsey rather than company information.
Open to applicants in the United States
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