
Stewart Southey
@stewartsouthey
Healthcare strategist and consultant anaesthesiologist at Yoffi, shaping an AI nutrition venture after NHS redesign captured £2m a year.
What I'm looking for
At Yoffi, I’m leading product definition, clinical framing and go-to-market for an AI nutrition and medical wellness venture, including nutrition support for blood-sugar management and weight-related goals. At Catena, I advise investors, startups and professional firms on emerging technology, delivered a blockchain consulting assignment for the World Health Organization, and built educational products sold in more than 35 countries.
In my NHS work, I led a clinical coding redesign that delivered £2m a year in recurring revenue capture and reconfigured day surgery theatres to deliver £400k in immediate savings and £250k a year in ongoing savings. As Chief Medical Officer and a founding-team member at Medicalchain, I helped raise $24m in its 2018 ICO and contributed to its whitepaper, pilot sites and partnerships.
Experience
Work history, roles, and key accomplishments
Consultant Anaesthesiologist
NovoClinic
Apr 2025 - Present (1 year 6 months)
Consultant anaesthesiologist providing clinical care at NovoClinic in the Cayman Islands.
Founder and CEO
Yoffi
Jan 2025 - Present (1 year 9 months)
Leading product definition, clinical framing and go-to-market for an AI nutrition and medical wellness venture, including nutrition support for blood-sugar management and weight-related goals.
Founder and Managing Director
Catena
Jan 2017 - Present (9 years 9 months)
Founded Catena Consulting through LANZ Ltd in the UK and continued advisory and education work through Catena MBA SEZC in Cayman from 2021. Advises investors, startups and professional firms on emerging technology, including a blockchain consulting assignment for the World Health Organization.
Consultant Anaesthesiologist
Doctors Hospital
Jun 2021 - Feb 2025 (3 years 8 months)
Consultant anaesthesiologist providing clinical care at Doctors Hospital in the Cayman Islands.
Chief Medical Officer
Poonyah Care Limited / PCL Health
Jan 2019 - Dec 2022 (3 years 11 months)
Provided clinical leadership, positioning and product/service guidance for a wellness and family health-monitoring venture.
Independent Consultant Anaesthetist
UK NHS and private practice
Jun 2019 - Jan 2021 (1 year 7 months)
Independent consultant anaesthetist providing services to the UK NHS and private practice.
Clinical Advisor
Candesic Strategy Consulting
Jan 2016 - Dec 2019 (3 years 11 months)
Provided clinical advisory input to strategy consulting work.
Consultant Anaesthetist
Poole Hospital NHS Trust
Nov 2008 - Jun 2019 (10 years 7 months)
Anaesthetised 15,000+ patients as a consultant. Leadership included transformation/PMO, private patient unit work, service line reporting, equipment procurement and regional anaesthesia education.
Blockchain Director and Chief Medical Officer
Biohax International
Jan 2017 - Dec 2018 (1 year 11 months)
Led clinical and regulatory framing and blockchain strategy; contributed business-case and whitepaper work, fundraising support, executive recruitment input and international partnerships.
Chief Medical Officer and Founding Team Member
Medicalchain
Jan 2017 - Dec 2018 (1 year 11 months)
Helped raise $24m in the 2018 ICO as part of the founding team. Contributed to the whitepaper and helped establish pilot sites and business and technical partnerships for blockchain health records.
Education
Degrees, certifications, and relevant coursework
University of Nicosia
Master of Science, Digital Currencies
2017 - 2019
Grade: GPA 3.7, Cum Laude
Completed an MSc in Digital Currencies with a GPA of 3.7 and Cum Laude distinction.
The Open University
Master of Business Administration, Business Administration
2009 - 2015
Earned an MBA from The Open University.
Royal College of Anaesthetists
FRCA, Anaesthesia
Awarded the Fellowship of the Royal College of Anaesthetists (FRCA).
University of the Witwatersrand
MBBCh, Medicine
1993 - 1998
Completed the MBBCh medical degree from the University of the Witwatersrand.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Salary expectations
Social media
Job categories
Interested in hiring Stewart?
You can contact Stewart and 90k+ other talented remote workers on Himalayas.
Message StewartGet matched with your dream remote job
Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!
