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LTV.ai

Jr Prompt Engineer

LTV.ai, San Francisco

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At LTV.ai, we’re redefining customer engagement for e-commerce brands by empowering them with their own AI-powered ambassadors to deliver hyper-personalized Email and SMS interactions at an unprecedented scale.
Our platform enables brands to communicate with their audience in a natural and contextually relevant manner, driving higher engagement and conversion rates. While increasing LTV and driving measurable growth, we help brands stay focused on what matters most - the customer.
Why join us?
We’re a fast-moving team building a high-growth company that’s transforming the e-commerce industry.
As an early contributor on the AI team, you’ll help shape the future of intelligent customer communication - and the broader prompt design ecosystem. You’ll work side-by-side with our AI and Engineering teams, shipping real output that immediately reaches tens of millions of consumers. This is a unique opportunity to be hands-on in the most experimental parts of our product and help define a new category from the ground up.
What you’ll do:

  • Collaborate with our AI, engineering, and product teams to write, test, and refine high-performing prompts across a range of customer-facing experiences
  • Help scale and evolve our prompt library for:
    • Personalized email campaigns
    • Human-like responses in our AI chat interface
    • Customer reply handling and sentiment understanding
    • Image generation
    • Marketing-style tone tuning and brand voice preservation
  • Run structured experiments to evaluate prompt performance and gather qualitative/quantitative feedback
  • Continuously research best practices and innovations in prompt engineering and apply those insights internally
  • Contribute to documentation, tooling, and prompt versioning processes to improve internal collaboration
What we’re looking for (ideally):
  • Deep curiosity and passion for AI language models and how they’re applied in real-world user flows
  • Strong writing skills, with an eye for tone, empathy, and clarity in communication
  • Technical comfort working with tools like GPT, Claude, or image generation models (e.g., Midjourney, DALL·E)
  • Ability to think like both a product designer and a conversational copywriter
  • Previous experience working with LLMs, either through direct work experience at scale or side projects
  • Familiarity with e-commerce or marketing workflows is a plus
Compensation
  • Depends a lot on the person but we compensate A players well
  • Equity included
If you’re curious, ambitious, and hungry to build something big, feel free to email our founder directly - we’d love to hear from you.

Seniority level

  • Seniority level

    Entry level

Employment type

  • Employment type

    Full-time

Job function

  • Job function

    Engineering and Information Technology
  • Industries

    Technology, Information and Internet

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