AI Research Scientist (Multimodal post-training)
SwordLocation not specified
Full Time
Posted April 14, 2026
Not Specified
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Job Description
An AI Research Scientist at Sword develops multimodal AI systems capable of understanding and engaging with patients across various modalities to deliver autonomous, continuous clinical care at scale, bridging foundational research and practical healthcare applications.
Key Responsibilities
- Conduct foundational research to develop AI systems capable of sustained, multimodal patient engagement.
- Build and improve core AI models for understanding and processing video, language, and speech modalities.
- Implement memory systems and multi-turn reinforcement learning for long-term treatment planning.
- Translate research findings into practical AI products that deliver autonomous clinical care at scale.
- Publish research in top-tier AI conferences and clinical journals while shipping impactful models.
Requirements
- Possess a PhD or equivalent doctoral degree in Computer Science, Artificial Intelligence, Machine Learning, or a related field.
- Have a minimum of 3 years of research experience in AI, machine learning, or a related area, demonstrated through publications, projects, or industry experience.
- Proven expertise in multimodal perception, including experience with fusing video, language, and speech modalities for AI systems.
- Experience with memory systems and multi-turn reinforcement learning for long-horizon treatment planning or similar sequential decision-making processes.
- Ability to conduct foundational research that advances AI capabilities for clinical care, including designing and implementing novel models and algorithms.
- Experience with deploying AI models into practical applications that support real-time, autonomous clinical care at scale.
- Strong publication record in top-tier AI conferences and clinical journals demonstrating scientific rigor and impact.
- Ability to operate at the intersection of research and product development, balancing scientific innovation with practical implementation.
- Excellent problem-solving skills and comfort making high-stakes decisions with incomplete information in high-pressure environments.
- Willingness and ability to work in a collaborative team environment, actively contributing to both research and product goals.
- Candidates must be based in Portugal with a valid EU visa, as the position does not offer relocation assistance.
- Candidates should be located in or willing to work from Lisbon, Portugal, or London, UK, with exceptional consideration for qualified candidates elsewhere in Europe.
Benefits & Perks
Health, dental and vision insurance
Meal allowance
Equity shares
Remote work allowance
Flexible working hours
Work from home
Discretionary vacation
Snacks and beverages
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