AI Product Engineer

Marathon TS

$120K — $150K *
Consumer Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 4+ years of professional software engineering experience.
  • Strong proficiency in Python and a modern web framework (FastAPI, Flask, Django, etc.).
  • Frontend experience with React, TypeScript, or a comparable framework.
  • Hands-on experience building applications with LLM APIs (OpenAI, Anthropic, Google, etc.).
  • Solid understanding of prompt engineering, retrieval-augmented generation (RAG), and evaluation methods.
  • Strong product instincts for sound UX decisions.
  • High autonomy and ability to thrive without detailed specifications.

Responsibilities

  • Own AI powered features from user problem identification to production ready experiences.
  • Engage with users to define product requirements and prioritize development.
  • Design intuitive UX flows and interfaces for AI-native interactions.
  • Build across the full stack including backend services and frontend UI.
  • Develop prompts, retrieval pipelines, and workflows using LLMs.
  • Build evaluation frameworks to measure model quality and performance.
  • Shape engineering culture and product direction as the team expands.
  • Stay informed on LLM advances and incorporate relevant ideas into products.

Benefits

  • 100% remote work environment.
  • Opportunity to significantly influence product development from inception.
  • Ability to wear multiple hats across product, design, and engineering.
  • Fast-paced, dynamic work where shipping quickly is valued.
Full Job Description
I Product Engineer
Fully Remote

We are seeking a founding I Product Engineer to help our client shape their product from the ground up. You'll wear every hat - product, design and engineering - and have an outsized impact on what we build and how we build it. This is a role for someone who thrives on ambiguity, ships fast, and wants to define what an AI-native product looks like. This position is 100% remote.

Responsibilities include:
• Own AI powered features end to end - from identifying user problems to shipping polished, production ready experiences.
• Talk to users, define product requirements, and decide what's worth building next.
• Design intuitive UX flows and interfaces for AI native interactions.
• Build across the full stack - backend services, AI/LLM integrations, and frontend UI.
• Develop and refine prompts, retrieval pipelines, and agentic workflows using frontier LLMs (Claude, Gemini, GPT).
• Build evaluation frameworks to measure model quality, accuracy, caching, fallback strategies, and cost optimization.
• Help shape engineering culture, technical standards, and product direction as the team grows.
• Stay current with advances in LLMs, RAG, agents, and evaluation techniques; bring promising ideas into the product.
• Move fast, ship often, and iterate relentlessly based on user feedback.

Minimum Requirements:
• 4+ years of professional software engineering experience.
• Strong proficiency in Python and a modern web framework (FastAPI, Flask, Django, or similar).
• Frontend experience with React, TypeScript, or a comparable framework.
• Hands on experience building applications with LLM APIs (OpenAI, Anthropic, Google, or open-source models).
• Solid understanding of prompt engineering, retrieval-augmented generation (RAG), and evaluation methods.
• Strong product instincts - able to identify what's worth building and make sound UX decisions.
• High autonomy - thrives without a detailed spec or established process.
• Bias toward shipping; comfortable trading polish for speed when it matters.

Additional Requirements (Optional):
• Prior founding engineer, solo builder, or early-stage startup experience.
• Design fluency (Figma, prototyping, visual design fundamentals).
• Experience with agent frameworks, tool use, or multi-step LLM workflows.
• Familiarity with cloud platforms (GCP, AWS, or Azure) and containerized deployments.
• Background in regulated or compliance-heavy domains (FedRAMP, HIPAA, SOC 2, etc.).

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