About this role
Making preventive health the default for every human in Europe
The missionAt Lucis, we believe healthcare should be preventive, not reactive. We’re building the operating system for human longevity to help people add more healthy years to their lives.
The roleLucis analyses more than 110 biomarkers, builds personalised clinical protocols, and delivers them through an AI-powered preventive health product.
As Medical Excellence, you are the senior medical expert next to product and Medical ops. You bring deep clinical expertise into protocols, ranges, evidence, and what we can say next to a marker. You also cover medical content: biomarker copy, protocols, and marketing clinical sign-off.
You work with the product lead, Medical ops, medical reviewers, and AI. You do not own product decisions, and you do not own labs, partners, or turnaround — Medical ops does.
This is not a traditional bedside role. It is not an ops role. It is not a copywriting role. You have practiced medicine in depth, and you can turn clinical judgment into clear protocols, ranges, and member-facing language.
What you own Protocols & clinical standardsProtocol logic, decision trees, clinical rules
Biomarker thresholds and expert ranges
Translate medical reasoning into structures the product and Medical ops can run
Keep protocols aligned with current evidence
Support new biomarkers, health systems, and preventive programmes from the clinical side
Evidence & clinical judgmentEvidence bar: what we should test, drop, or claim
Brief product and the team without a 40-page memo
Clinical review of edge cases and sensitive outputs
Review of AI-generated medical outputs for clinical accuracy and safety
Medical contentBiomarker explanations, protocol rationales, in-product clinical language
Coach / member-facing clinical copy
Marketing clinical sign-off
French and English at publication quality
Keep member-facing clinical language trustworthy
Medical quality and governanceClinical review and sign-off processes (clinical side: what must be medically signed off, and to what standard)
Quality-control systems, documentation standards, audit trails — in partnership with Medical ops
Escalation and medical risk-management processes — clinical criteria and judgment
Clinical performance indicators — definition of medical quality bars, with Medical ops on measurement and ops
About youYou are a doctor with substantial clinical practice. You care that what members read and what protocols encode is medically sound. You are comfortable working with product and AI without needing to run either. You write like a clinician people would trust.
You’ll fit in well ifYou hold an MD (preferred) with deep clinical practice — more experience than a junior reviewer
Prevention, internal medicine, nutrition, functional, cardiology, public health, or a related field is a plus
You have strong clinical judgement, case by case and when defining standards
You can set protocol logic, ranges, and an evidence bar other people can execute
You write clearly in French and English at publication quality
You work well with product, Medical ops, AI, and reviewers — without owning their roadmaps
You balance medical rigour with pragmatism
You take ownership beyond a narrow specialty lane
We might not be a fit ifYou want to focus primarily on traditional bedside practice
You want to run labs, partners, turnaround, or ops queues (that’s Medical ops)
You want to own the product roadmap
You prefer pure research or citation work without shipping clinical standards
You are a copywriter without real clinical practice
You need every process already defined before you contribute
You prioritise predictable nine-to-five work over mission intensity
Practical detailsFormat: Full-time preferred. Flexible for the right senior profile.
Location: Paris mostly / Europe
Languages: French and English required. Additional language a plus.
Relocation support possible. Europe-based candidates welcome if willing to travel regularly to Paris.
The processIntroductory call (20 minutes)
Technical interview (30–60 minutes) — clinical judgement, protocol/evidence thinking, writing sample or case
At-home case study (within two days)
Deep dive and team conversations in Paris
Reference calls