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Job details

AI Research Lead

Perplexity is a leading AI platform focused on building trustworthy AI to power decision-making and assistive AI. They are seeking an AI Research Lead to drive research strategy, mentor a team, and advance their in-house Online LLMs called Sonar.

Skills

  • Deep expertise with large-scale LLMs and deep learning systems.
  • Strong programming skills across multiple languages and frameworks.
  • Experience with pre-training and post-training techniques like SFT, DPO, GRPO, PPO.
  • Ability to set technical vision and drive project execution.
  • Experience in supervised and reinforcement learning techniques.
  • Exceptional ownership mentality and ability to work in ambiguous environments.

Responsibilities

  • Define and execute macro research direction across multiple modalities including post-training LLMs and mid-training initiatives.
  • Lead strategic research planning and roadmap development for Sonar model capabilities.
  • Drive innovation in supervised and reinforcement learning techniques for query answering.
  • Coach and mentor a team of AI research scientists and engineers.
  • Lead hiring and onboarding of new research talent.
  • Post-train state-of-the-art LLMs using supervised and reinforcement learning techniques.
  • Optimize data, training, and evaluation pipelines for LLM post-training.
  • Collaborate cross-functionally with engineering, product, and data teams.
  • Communicate research progress to stakeholders.

Education

  • Graduate degree in Computer Science from a premier academic institution.

Benefits

  • Comprehensive health, dental, and vision insurance for employee and dependents.
  • 401(k) retirement plan.
  • Equity as part of total compensation package.
To read the complete job description, please click on the ‘Apply’ button
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CEO of Perplexity AI
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Aravind Srinivas
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Average salary estimate

$415000 / YEARLY (est.)
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$370000K
$460000K

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Perplexity offers an AI chatbot-powered research and conversational search engine that answers queries using natural language predictive text. Since it's launch in 2022, has raised $165 million in funding, valuing the company at over $1 billion.

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FUNDING
SENIORITY LEVEL REQUIREMENT
TEAM SIZE
SALARY RANGE
$370,000/yr - $460,000/yr
EMPLOYMENT TYPE
Full-time, unknown
DATE POSTED
July 22, 2025
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