Felix Geilert
CTO & Co-Founder Radiant Science
Co-Founder & CTO, Radiant Science · Berlin chapter
Felix Geilert is co-founder and CTO of Radiant Science, a Berlin-based generative-AI company automating clinic administration. A former Microsoft and Meta AI engineer with an MSc in Computer Science, he is a data-driven biohacker aiming for 140 healthy years.
Highlights
- Co-founder and CTO of Radiant Science, a generative-AI platform reducing administrative overload in clinics and hospitals.
- Former AI engineer at Microsoft (compliant infrastructure, search) and Meta (foundational brain models).
- Founded an AI video-security startup before Radiant Science and is an avid data-driven biohacker.
Co-founder and CTO of Radiant Science, a generative-AI platform reducing administrative overload in clinics and hospitals.. Former AI engineer at Microsoft (compliant infrastructure, search) and Meta (foundational brain models).. Founded an AI video-security startup before Radiant Science and is an avid data-driven biohacker..
About Felix Geilert
Felix Geilert is the co-founder and CTO of Radiant Science, a generative-AI platform for outpatient clinics and hospitals that automates administrative work so clinicians can focus on patient care. He holds an MSc in Computer Science and is an expert in AI infrastructure.
Before Radiant Science he founded a video-security-surveillance AI startup, then worked at Microsoft on compliant infrastructure, search and productivity tools, and subsequently joined Meta as an AI developer building foundational brain models to decode thoughts from brain images. Radiant Science is led by CEO Dr. Sigourney Waibel and is backed by investors including Calm/Storm Ventures.
Geilert's work spans large-scale data extraction and integration, agentic AI systems, and the shift from AI as an 'oracle' to AI as a 'colleague' that does work for clinicians to review and supervise.
A committed biohacker, Geilert follows a systematic, data-driven approach to his own health with the stated goal of living 140 healthy years – an interest sparked by reading David Sinclair's Lifespan in 2020.
Credentials
- OtherMSc Computer Science
Education
Topics & Expertise
- Preventive Medicine
- Aging Biology & Senolytics
- Brain Longevity
- agentic AI systems
- AI infrastructure
- generative AI for healthcare
- large-scale data integration
- personal longevity protocols
- biohacking
Frequently Asked
Who is Felix Geilert?
Felix Geilert is the co-founder and CTO of Radiant Science, a Berlin-based generative-AI company for outpatient clinics and hospitals. He holds an MSc in Computer Science and previously worked as an AI engineer at Microsoft and Meta. Before Radiant Science he founded a video-security AI startup.
What does Felix Geilert's company Radiant Science do?
Radiant Science builds AI agents for clinics and hospitals that answer patient calls, booking requests and questions 24/7 across phone, email and SMS, automating routine administration while flagging complex medical queries to staff. The Berlin-based company is used by private clinics in the UK. Felix Geilert co-founded it and serves as CTO alongside CEO Dr. Sigourney Waibel.
What is Felix Geilert's professional background?
Felix Geilert studied at Technische Universität Braunschweig and holds an MSc in Computer Science. He founded a video-security-surveillance AI startup, then worked at Microsoft on compliant infrastructure, search and productivity tools, and later joined Meta as an AI developer building foundational brain models to decode thoughts from brain images.
What is Felix Geilert's longevity goal?
Felix Geilert follows a systematic, data-driven biohacking approach with the stated goal of living 140 healthy years. His interest in longevity was sparked in 2020 by reading David Sinclair's book Lifespan.
Where does Felix Geilert speak about AI and longevity?
Felix Geilert speaks at Longevity Germany community events and has appeared on podcasts such as AI Unleashed, discussing machine-learning integration, AI ethics and his work at Meta, Microsoft and Radiant Science.