AI Builder (H/F)

Prose is truly custom hair and skin care made-to-order, just for you. Our line of custom products are made by an in-house, Paris-based R&D team of gifted chemists who combine natural ingredients in innovative ways alongside dermatologists, giving consumers clean skin care, hair care and impeccable results. At the heart of Prose's success is Singular, its proprietary AI-powered beauty-tech platform, which has revolutionized personalized beauty at scale. Marrying a technology-driven approach with an apothecary-style concept, all Prose hair and skin care products are personalized to your one-of-a-kind hair, skin, goals and environment. We're a company that wants to change beauty practices, so we're changing the way beauty companies practice. As a certified B Corporation, a Public Benefit Corporation and Climate Neutral, we're proving that good business is always sustainable. With Prose, there's nothing sacrificed to bring you great products, not trees, materials, wages, or performance. Prose & Singular in Numbers Founded in 2017, with hubs in Paris, New York, and Los Angeles 10M+ consultations completed 2M customers and 350K active subscribers 21M custom products made, with 1M+ unique formulas 350+ team members across disciplines $600M+ in lifetime sales, with $174M+ revenue in 2025 Profitable since 2024 Key Responsibilities Diagnose where AI creates real leverage. Sit with a team, listen, and pressure-test what they ask for. Often the job is helping them rephrase the need, not taking the order Design and build the tool when a tool is the answer. Prototype hands-on with Claude and our AI stack. You build by prompting, not by writing production code. Maintain what you ship. Keep data current, handle access and confidentiality, and make sure tools stay reliable instead of piling up as one-off messes. Raise AI fluency across Prose through workshops, 1:1s, and office hours. Meet people where they are, from "I've never opened Claude" to "I build agents but want to do it better”. Unblock people day to day. When a colleague is stuck on a prompt, an integration, an eval, or a workflow, you solve it with them or point them to who can. Partner with leaders across Brand, Growth, Operations, CX, People, and R&D to surface the highest-leverage AI opportunities for each team. Make the build, escalate, or coach call. Decide what to build yourself, what to hand to Tech, and what to coach a colleague through building. Teaching someone to build often beats building it for them. Synthesize what you learn into a focused priority list, and help shape Prose's AI roadmap with the CTO.

3-5 years across a path like management consulting then product management, or a technical PM track at a fast-moving company. Consulting-style exposure to many business problems at once is a strong signal: this role will work with every team in the business and often with multiple in a single day. Production experience building with LLMs: Claude (our primary stack), Gemini, or comparable. You've built and shipped at least one AI-powered tool that real people actually used, with hands-on prompt engineering. You understand basic eval design from doing the work. Technically fluent. You can take a tool from zero to a working first version yourself by building with AI, and you have enough engineering judgment to make what you ship maintainable. You do not need to be a career software engineer and the role does not require production coding. Self-confidence and judgment to be a true partner. You can sit with a senior leader, ask the right questions, and push back when the request does not hold up. Strong ability to synthesize. You take many inputs from many teams and shape them into clear priorities, with views on what to do now, what to defer, and why Daily user of AI tools in your own work today, for analysis, research, building, or thinking. We want someone who already treats AI as a work tool, not someone willing to learn it someday. This is an individual contributor role. It suits a builder, not someone currently managing a large team

Per sé Beauty (Prose) est une société franco-américaine, leader mondial de la beauté personnalisée, et acteur majeur de la BeautyTech. Avec son centre de recherche pluri-disciplinaire (Tech, Data, Chimie, Innovation, UX) basé à Paris, Prose révolutionne l’industrie cosmétique: après seulement 5 ans d'existence Prose est l'une des marques en plus forte croissance aux Etats-Unis, avec un chiffre d’affaires supérieur à 100 millions de dollars. Le siège, basé à Brooklyn, héberge les équipes en charge de la production et de la commercialisation des produits Prose qui sont vendus sur le territoire des Etats-Unis et du Canada. Chez Per sé Beauty (Prose), nous créons des produits de beauté sur-mesure, totalement personnalisés: nos clients remplissent une consultation en ligne, puis nos algorithmes se basent sur ces données pour créer une formule unique à chacun, que nous fabriquons puis livrons depuis notre usine à Brooklyn. Per sé Beauty (Prose) est également une entreprise fortement engagée: labellisée B-Corp depuis 2019, Carbon Neutral depuis 2017, et Public Benefit Corporation (Entreprise à Mission) depuis 2021.