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Fractal

NFT marketplace for blockchain gaming assets

Lead AI Product Engineer

AI Application EngineeringConfirmed live in the last 24 hours
Full-timeNo salary listedIn-person

About the Job

Requirements

  • Ten to fourteen years of experience in AI, machine learning, or software, including at least three years leading a team.
  • A track record of owning technical design rather than only implementing someone else’s design.
  • Production experience with large language model and agentic systems, including multi-step workflows, tool use, orchestration frameworks, and failure modes at scale.
  • Evidence of measuring agent quality with evaluation methods more rigorous than manual spot checks.
  • Strong Python engineering skills and experience shipping production code rather than notebooks.
  • Experience with document understanding and information extraction, ideally involving messy real-world inputs such as emails, remittance advices, and attachments.
  • Classical machine learning depth alongside generative AI experience, and judgment to choose the appropriate approach for a problem.
  • Sufficient understanding of services, data, and deployment to build agents that fit the platform and discuss design decisions with the Engineering Lead.
  • A product track record of building AI for multiple clients rather than delivering one-off solutions for a single engagement.

Responsibilities

  • Own the technical design of the AI side, including agent decomposition, orchestration patterns, tool design, and memory and context strategy.
  • Build and own agents across all five modules, from document extraction and matching to the reasoning behind recommendations.
  • Own agent accuracy and reliability, including evaluation sets, regression suites, and defensible performance measures before release.
  • Design guardrails and human oversight, including confidence thresholds, escalation to a person, audit trails, and traceable reasoning for decisions affecting cash.
  • Develop predictive and machine learning models where they serve the product better than an agent.
  • Own model strategy, including model choice, workflow cost and latency, and the ability to switch providers without a rewrite.
  • Agree jointly with engineering on the interfaces between the AI side and the platform.
  • Lead the AI and agent engineering team, set standards, coach engineers, and keep the team unblocked.
  • Write code, take on the hardest agents, and establish patterns for the team.
  • Work in partnership with the Engineering Lead.
  • Work with product management to assess what agents can reliably do and ensure external commitments are grounded.
  • Explain agent behavior to finance stakeholders.

Desired Qualifications

  • Order-to-cash or accounts receivable domain knowledge, including collections, cash application, deductions, or remittance handling.
  • Experience with agent observability and tracing tools.
  • Experience taking AI through enterprise risk, compliance, or model governance review.

About the Company

Fractal

NFT marketplace for blockchain gaming assets

Fractal.is operates a blockchain-based marketplace for gaming NFTs where developers can list games and in-game assets and players can buy, sell, and trade unique digital items. The platform supports minting and secondary sales of NFTs, with transactions generating revenue through commissions. It emphasizes community engagement through channels like Discord and Twitter to drive listing activity and user retention. Compared to others, Fractal.is specializes in the gaming sector, aggregating multiple games and assets under one marketplace, and focuses on building a connected metaverse ecosystem for developers and gamers. Its goal is to grow a active, trusted marketplace that enables true ownership of digital assets and vibrant participation in the gaming/NFT space.

Company size
1-10
Company stage
Seed
Total funding
$35.2M
Headquarters
San Francisco, CA
Founded
2021

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