About Romain
I’m a hands-on Product Manager and Product Engineer with a strong execution bias. I’ve built, launched, and now run two consumer apps in production, owning everything from product strategy and UX to development, monetization, and iteration based on real usage data.
I’m known for ruthless prioritization. When you’re building products while taking care of your first newborn, every decision has to matter. That mindset carries into my work: focus on outcomes, ship the smallest thing that creates value, measure impact early, and iterate fast without wasting time or resources.
I’m deeply data-fluent and comfortable working end-to-end with analytics, funnels, and experimentation to inform product decisions and growth. I thrive in environments with strong ownership, real constraints, and high expectations.
Bilingual French / English.
Authorized to work in the US.
Available for B2C, Fintech, and data-driven product engagements.
French
Native or bilingual
English
Fluent
Can work on-site
Paris 14e Arrondissement (up to 50km)
Experience
- Family productivity appsSolo Founder & Product EngineerREAL ESTATEJanuary 2026 - Today (5 months)New York, United StatesLaunched apps from the ground up using Flutter, Firebase & Cursor (for Who’sHome). Owned the full product lifecycle,from UI/UX to backend. Live on iOS & Android.Who’sHome - Shared House Calendar (monetized)• Shipped the V1 in 5 months with key features like shared calendars, real-time notifications, localization and authentication. Integrated RevenueCat for subscriptions, enabling seamless freemium monetization.• Launched in November 2025 and achieved 2× month-over-month MRR growth.• Increased activation rate by c.25% by redesigning onboarding with personalization-driven flow, materially improving the monetization funnel.Mâche - Food social network• Live on IOS with 200+ MAU. Running organic social media acquisition.• Currently deploying AI agents (RAG) to automate back office and content operations to save $40k/year and optimizing feed data architecture to improve feed speed and reduce churn.
- B4PurposeProduct OwnerSOFTWARE PUBLISHINGMarch 2022 - June 2022 (4 months)Paris, France2 axes principaux sur cette mission :- Coordination et développement d'un prototype sur Figma avec des équipes de designers anglophones pour présentation du projet à des clients grands comptes- Schématisation des besoins fonctionnels et écriture des US pour établir un budget prévisionnel et préparer le développement de la solution
- MâcheFounder & CEOE-COMMERCEMarch 2020 - September 2024 (4 years and 6 months)Paris, FranceProduct Management & Innovation:• Built and led a team of four using a scrum framework to create and launch a web application with both consumer and admin interfaces.• Developed a unique feature that calculates users’ food carbon footprints, setting our product apart in the market. Prototyped every features on Figma.• Created blog, content, and landing pages using no-code toolsMarketing & Communication:• Designed and implemented a digital marketing strategy across various channels.• Achieved rapid user growth, reaching 4k users in four months, through organic video content on Instagram and TikTok (two videos gained over 1 million views), as well as paid Google campaigns and SEO
Reviews
Fabienne
B4Purpose
Reviewed on 7/18/2022
Ce fut un plaisir de travailler avec Romain qui nous a aidé à concevoir les deux prototypes de notre outil.
Romain est force de proposition et anticipe le besoin des futures utilisateurs.
Il a su travailler en dehors de son scope de départ qui était celui de l’établissement des Users Stories pour faire des propositions sur le UX design également , le tout pour bien aligner le besoin du métier et des équipes techniques.
Je vous recommande Romain si vous cherchez un prestataire qui pourra s’engager pour réaliser votre projet.
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Education
- FinanceUniversité Paris Dauphine2018