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Sphere, Inc.

Lead AI Engineer

Sphere, Inc.
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7 months ago
San Francisco, CA, USAMid Level / Senior / Staff+

Base Salary

$250k - $280k/yr

Responsibilities

  • Lead development of new features to enhance TRAM’s test-time accuracy.
  • Build and maintain data and retrieval pipelines for AI workflows.
  • Collaborate with internal tax experts to improve TRAM's reasoning capabilities.
  • Own TRAM’s evaluation framework and workflows.
  • Work with leading frontier labs to fine-tune models on proprietary data.

Requirements

  • Prior experience building AI-enabled products, especially RAG systems.
  • Experience fine-tuning base models, ideally via RFT.
  • Willingness to engage deeply with tax technical problems.
  • Strong understanding of LLMs and reasoning models.

Categories

AI & MLData Engineering