Why Lucis?

Lucis is building Europe’s first preventive health platform: from blood testing to advanced AI-driven insights and action plan.

We already serve 1000+ of users in 🇫🇷, 🇵🇹 and 🇬🇧 and are integrating with dozens of lab partners.

• Team of passionate and tier-1 operators
• Backed by YC X25 and a seed round led by tier-1 investors, athletes & operators
• A live AI “doctor” agent already shipping actionable protocols every day

We’re a small, ambitious team of repeat founders, biohackers.

We’re growing extremely fast (10% week over week) and scaling to empower more Europeans to take control of their health.

Paris-based and YC-backed (X25), we’re funded by a top-tier global VC, a specialised healthcare fund, athletes, and serial entrepreneurs, including the founders of Airbyte, Strapi, Sqreen, WePay, Plato, Veepee, and Zenly.

Our story - How it started

The role

As our Founding lead marketer, you’ll architect the strategy and lead the charge as Lucis expands preventive health across Europe. This is a high-impact, highly strategic role for a seasoned operator, someone who thrives at the intersection of growth, brand, and health, and wants to play a pivotal part in scaling a category leader.

On the day-to-day, you’ll:

• Define and own the GTM roadmap—from channel selection and positioning, to sequencing launches and driving both D2C and B2B growth.
• Build, launch, and optimize campaigns across organic, paid, content, expert/influencer, and corporate wellness channels.
• Partner closely with our medical and product teams to ensure clinical rigor and regulatory alignment, translating science and best practice into compelling, actionable user journeys.
• Drive user acquisition, activation, and retention across multiple European markets (France, UK, Portugal), customizing approaches for each local context.
• Scale our expert and influencer programs, unlocking community-driven growth and trusted word-of-mouth.
• Lead strategic partnerships: identify, pitch, and close B2B deals with top employers, health networks, and labs.
• Own key growth metrics—setting targets, building dashboards, and running regular reviews with the founding team.
• Shape Lucis’ narrative in the health space—positioning us as the leader in AI-driven, preventive health.

You’ll thrive here if you:

• Bring 5/7+ years in senior GTM, growth, or marketing roles, ideally at the intersection of health, D2C, and technology.
• Have a proven track record of launching and scaling consumer health or wellness products, with hands-on ownership of growth levers.
• Understand how to build trust in health—balancing bold storytelling with scientific credibility and compliance.
• Are a true collaborator, able to partner deeply with clinicians, product, and data teams to turn medical insight into user value.
• Think strategically but move fast—comfortable balancing immediate growth with long-term vision.
• Are analytical, data-driven, and relentless in your pursuit of product-market fit and operational excellence.
• Are passionate about health, prevention, and making a real impact on people’s lives.
• Are fluent in English and French.

We are building fast, for the long term.

1. Rigor without ego: audits, science, and code deserve the same high bar.
2. Default to action: small PRs, short feedback loops.
3. Radical ownership: you break it, you fix it (and write the doc).
4. Play long games: we’re building a 100-year company to help people live 100 healthy years.

More on the team and vision.