Quantitative Imaging Scientist

A fantastic opportunity has become available for a Quantitative Imaging Scientist to join Caristo Diagnostics rapidly growing team, based at our Oxford headquarters.

About the Role

Overview
Caristo's technology depends on the accurate and reliable quantitative assessment of cardiac CT scans. This role owns the calibration capability that underpins both our current clinical services and the next generation of our AI-driven cardiovascular products.

You will join a small, highly collaborative Product Innovation team working at the interface between research, engineering, operations and clinical delivery. The role combines scientific thinking with practical execution and requires someone who can make good decisions despite incomplete information, competing priorities and changing requirements.

Success in this role is measured by keeping critical programmes moving, enabling clinical delivery, supporting product development and helping the company make pragmatic technical decisions.
This is an ideal role for someone who enjoys solving real-world problems, working across teams and turning ambiguity into action.

What You'll Be Doing

Calibration Ownership

• Own Caristo's CT calibration capability and associated roadmap
• Deliver customer calibration requirements that support clinical service delivery
• Maintain and continuously improve calibration methodologies
• Develop next-generation approaches for future products

Product Innovation & Translation

• Support translation of new scientific ideas into deployable products
• Work closely with Engineering, Operations and Product Innovation teams to ensure successful implementation
• Help identify and resolve technical bottlenecks affecting product performance and scalability
• Contribute to validation strategies and regulatory programmes

Scientific Collaboration

• Act as a technical point of contact for Oxford University collaborators and external research partners
• Support delivery of research projects, publications and patents
• Contribute to technical documentation supporting regulatory submissions

Cross-Functional Leadership

• Coordinate activities across research, engineering and operations teams
• Communicate clearly with technical and non-technical stakeholders
• Help prioritise competing requests based on business impact and scientific value
• Identify when a pragmatic solution is more valuable than a perfect one

What Success Looks Like
Within 12 months you will:

• Be recognised as the owner of Caristo's calibration capability
• Deliver customer calibrations reliably and predictably
• Support development of next-generation products and regulatory submissions
• Unblock research, engineering and operations teams through rapid decision-making and technical leadership
• Build effective relationships across Caristo and Oxford University
• Improve the speed with which innovations can be translated into products

The Ideal Candidate
We're looking for someone who:

• Makes good decisions with incomplete information
• Understands that a useful answer today can be more valuable than a perfect answer next month
• Thrives in a highly collaborative environment
• Balances scientific rigour with practical delivery
• Shares ideas early and iterates based on feedback
• Takes ownership of outcomes rather than simply completing tasks
• Communicates clearly and pragmatically
• Can prioritise when everything appears urgent
• Is excited by translating science into real-world impact

About Caristo Diagnostics
With the first and only FDA approved (July 29, 2026) coronary artery inflammation diagnostic medical device, CaRi-Heart®, Caristo Diagnostics is a global leader in AI technologies for cardiovascular disease, founded as a spin-out from the University of Oxford in 2018. Caristo also has an FDA approved (2025) coronary artery plaque diagnostic medical device. Its award-winning inflammation technology helps detect hidden heart disease and identify people at risk of a heart attack before symptoms appear allowing for proactive disease management. Working with leading hospitals, research institutions, and pharmaceutical partners, Caristo aims to save lives through early detection and personalized prevention. The company was named a 2026 Technology Pioneer by the World Economic Forum in June 2026. Learn more at www.caristo.com or follow Caristo on LinkedIn, YouTube, and X.

About the CaRi-Heart® Technology
Named first of “7 Technologies That Could Change Heart Healthcare Forevermore” by the Robb Report, the CaRi-Heart® technology is Caristo’s flagship offering which uncovers hidden coronary inflammation, a key driver of cardiovascular disease, on routine Coronary Computed Tomography Angiography (CCTA).

The technology is regulatory approved for clinical use in US, UK, Europe, and Australia and is in use with a growing number of hospitals and clinics. Multiple patents underpinning CaRi-Heart technologies have been granted in major jurisdictions around the world. In addition, exceptional validation results showing CaRi-Heart’s ability to aid the prediction of heart attacks have been published in leading medical journals including the Lancet, JACC, European Heart Journal, and Cardiovascular Research.

Job Title Research Quantitative Imaging Scientist/ Platform Engineer
Department Head of Research and Innovation
Location Oxford, UK (full time in-office)
Benefits:

• Competitive salary (for Oxford location)
• 25 holidays per year plus bank holidays
• Enhanced pension contribution
• Private medical insurance
• Life insurance
• Cycle-to-work scheme
• Additional benefits for long-service

Why join Caristo:

• Be part of a company at the cutting edge of medical technology, with the potential to save lives and revolutionise healthcare
• Join a dynamic and growing team, with opportunities for personal and professional growth
• Contribute to the development of groundbreaking products in a company poised for significant expansion
• Enjoy a supportive and collaborative work environment, with a strong emphasis on innovation, quality, and impact

Caristo Diagnostics is committed to diversity and inclusion, and encourages applications from all qualified candidates, including those making a step up in their career. If you are passionate about making a difference in the world of medical imaging and meet the above criteria, we would love to hear from you.

Applicants should request Caristo’s Candidate Privacy Notice for information as to how we will handle your personal data.