JRAbout Jean
Senior CRO Manager with 7+ years driving growth optimization for global enterprises. Expert in scalable experimentation frameworks, blending advanced analytics, automation, and AI integration to deliver measurable performance gains.
Product builder and innovation catalyst, I enable companies to scale their growth engine and accelerate testing cycles through cutting-edge methodologies.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- Vibe Coding StudioSide Projects & Innovation LabJanuary 2024 - Today (2 years and 5 months)Lisbonne, Portugal
- AI-assisted development pioneer: evolved from simple copy-paste with Claude to advanced Cursor AI usage (MCP, strict rules, daily coding) to accelerate development productivity
- Built EasyABTesting, lightweight experimentation toolkit (duration calculators, prioritization matrix, AI agent for hypothesis generation and analysis) → technical foundation for ExperimentIO
- Developed ExperimentIO, comprehensive SaaS experimentation management platform:
- Kanban interface with dynamic segmentation (status/country/pages) and real-time roadmap- Centralized test library with automated analyses and complete history- Advanced statistical engine (Bayesian & Frequentist) with duration calculations and automated reporting- Integrated AI chatbot (Claude/GPT) connected to test database → contextual insights generation and recommendations- Designed StrutIO, B2B SaaS marketplace platform (models, agencies, brands) with full-stack architecture (REST API + responsive React/Tailwind interface)
- Launched HomeIO, personal dashboard application with financial widgets, budget management, and advanced revenue/expense flow visualization
- Modern tech stack: React, Tailwind CSS, Node.js, Python, SQL with native AI integrations for automation and predictive analysis
- DevOps & deployment: Automated CI/CD on Netlify/Render, rigorous Git versioning, comprehensive technical documentation, open-source code on GitHub
- Emma - the Sleep CompanySenior CRO ManagerE-COMMERCESeptember 2023 - Today (2 years and 9 months)Lisbon, Portugal
- Global management of CRO team across 35+ markets (Europe, APAC, Americas), driving roadmap, resources, and strategic direction
- Designed and deployed structured experimentation program (RICE framework, UX workshops, server-side A/B tests) with automated prioritization workflows
- Led 200+ experiments → +8% global conversion uplift and doubled testing velocity through streamlined processes and automated analysis
- Applied Bayesian & Frequentist statistical models with automated Python/SQL pipelines → 75% reduction in analysis time via AI-assisted reporting
- Integration of ExperimentIO, full-stack platform to manage, monitor & analyze experiments at scale, featuring automated insights generation
- Managed and coached CRO team (mid, junior, data/analytics levels) while partnering closely with Product, Design & Development teams
- Mercedes-Benz.ioSenior Experimental AnalystAUTOMOBILEMay 2022 - September 2023 (1 year and 4 months)Lisbon, Portugal
- Launched first global CRO program for Mercedes-Benz websites across Europe
- Audited user journeys & site performance, defined continuous improvement framework with data-driven prioritization
- Executed 17 A/B tests (14 statistically significant) → +35% leads, +9% transactions, +3% net revenue
- Applied Bayesian & Frequentist analysis, automated test planning & reporting with Jira/Looker integration
- Trained Data Analysts on advanced CRO methodology combining data insights, UX research, and competitive benchmarking
Recommendations
Be the first to recommend Jean
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Master II - Marketing DigitalESDES2019Développement web (HTML, CSS, JavaScript) Analytics & Statistiques avancées Marketing Data & Stratégies Growth Semestre international en Finlande (JAMK University) 2 ans en apprentissage chez Société Générale