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AI Engineer & Researcher - HCI / Model Designer

Xai

$180,000 - $440,000
Aug 14, 2025
Palo Alto, CA, US
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xAI is looking to bridge the gap between cutting-edge AI models and exceptional user experiences by enhancing user interactions, organizing and displaying information effectively, and innovating on agent transparency to make AI more accessible and understandable.

Requirements

  • Proven track record in human-computer interaction, user experience design, or related fields, with a portfolio demonstrating high-taste designs for complex systems—ideally in AI or tech products.
  • Hands-on experience building or fine-tuning AI models (e.g., LLMs, agents), combined with skills in software engineering (Python, frontend frameworks like React) to prototype and deploy interactive AI features.
  • Experience conducting user studies, A/B experiments, or HCI research, with publications or projects in areas like AI explainability, information visualization, or conversational interfaces.
  • Demonstrated ability to innovate on information display and agent transparency, such as designing tools for reasoning visualization or adaptive UIs, with a strong aesthetic sense for what "feels right" to users.
  • Coding assessment in a language of your choice.
  • Formulate, design and solve concrete problems in training data for post-training.

Responsibilities

  • Design and implement intuitive interfaces that improve how users query, receive, and iterate on responses from our AI models, prioritizing seamless and engaging experiences.
  • Develop strategies for structuring and presenting AI-generated content, ensuring clarity, hierarchy, and relevance to help users quickly grasp key insights without overwhelm.
  • Create novel ways to visualize and convey the internal reasoning processes of AI agents, such as step-by-step thought traces or dynamic feedback loops, to build trust and understanding.
  • Rapidly prototype new HCI features for AI interfaces, incorporating user feedback and A/B testing to refine how models deliver value in real-world scenarios.
  • Work closely with AI researchers, engineers, and product teams to integrate HCI principles into model training and deployment, fostering innovations that align technical capabilities with human needs.

Other

  • All employees are expected to be hands-on and to contribute directly to the company’s mission.
  • Leadership is given to those who show initiative and consistently deliver excellence.
  • Work ethic and strong prioritization skills are important.
  • All engineers and researchers are expected to have strong communication skills.
  • 3+ years in fast-paced environments, preferably at AI startups or tech companies, where you've balanced technical depth with user empathy to deliver impactful solutions.