Lucis

You'll own the reasoning engine for AI agents that analyze biomarkers and deliver preventive health protocols. You'll close the gap between LLM demos and a trustworthy AI doctor by shipping agent architecture, retrieval pipelines, and clinical workflows. You'll work directly with the medical team to translate clinical knowledge into production systems.

You'll be the CEO's strategic right hand, owning **cross-functional projects**, building **scalable systems**, and interfacing with investors. Your core impact is turning ambiguity into execution for a **preventive health startup** backed by Y Combinator.

You'll own all paid customer acquisition channels, scaling monthly spend from €50K to €400K+. Your core impact is turning our brand into growth through performance creative and CAC optimization across Europe. This role offers **direct line to the CEO** and **full ownership of acquisition** from day one.

You'll own everything after registration at a fast-growing preventive health startup backed by General Catalyst. Your core impact will improve retention and reduce churn, directly influencing LTV. This greenfield role lets you choose the tech stack and build programs from scratch.

You'll own the **brand voice and content strategy** for a category-defining health platform. You'll drive **organic growth through SEO** and create **health education content** that builds trust. This role lets you shape the narrative of a mission-driven startup.

You'll build the OS for human longevity, owning systems end-to-end from data model to UI. You'll orchestrate AI agents to execute specs and review AI-generated code with a critical eye, driving scalable infrastructure on AWS. **This is engineering at the frontier of AI and healthcare**, where you shape your own scope across full-stack, infra, or AI.

You'll be the frontline for customers and lab partners, providing **friendly support** via email, chat, and phone. You'll coordinate with our lab network **to resolve complex issues** and ensure smooth testing experiences. This role offers **ownership of weekend coverage** in a fast-paced health startup.