Data First Jobs

Haystack

Machine Learning Engineer

Full Time · In Office · San Diego, California (USA)

Posted Sep 6, 2026

We're hiring on behalf of a Haystack partner!

  • The Role
  • • Conduct cutting-edge research in efficient generative AI, including LLMs, Multi-Modal Foundation Models, LLM Reasoning, Reinforcement Learning, Agentic AI, and Autonomy.
  • • Lead high-impact research initiatives and contribute to the development of production-ready solutions with real-world commercial impact.
  • • Develop creative solutions that address practical challenges for on-device deployment.
  • • Implement and evaluate solutions in both simulation and on-device environments.
  • • Publish research findings in top-tier AI/ML conferences.
  • • Contribute to strategic goals in efficient AI and embedded intelligence.
  • What You'll Need
  • • Proven research excellence demonstrated by publications in top-tier AI/ML conferences.
  • • Deep expertise in Generative AI, Multi-Modal Foundation models, Vision Language Models, Reasoning, Reinforcement Learning, and Agentic AI.
  • • Hands-on experience with model development pipelines, including training, fine-tuning, evaluation, and optimization.
  • • A Master's degree and 2+ years of related work experience, or a PhD in Computer Science, Electrical Engineering, or a related field.
  • • Experience in developing and/or optimizing machine learning models, systems, platforms, or methods.
  • What's On Offer
  • • Competitive annual salary ($159,100 - $238,700) plus bonus potential and RSU grants.
  • • The opportunity to be part of a globally recognized AI research organization.
  • • Engage in impactful projects with significant real-world deployment.
  • • Collaborate with top researchers within a global network.

Apply via Haystack today!

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Machine Learning Engineer

Haystack

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