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William RondeauWR

William Rondeau

Expert Automation / Process / AI Agents & N8N

€700/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About William

Your tools are too expensive. Your teams waste time on tasks that could be automated. And no one has taken the time to truly measure how much.

I focus on three levers: auditing your stack (eliminating redundancies and underutilization), automating manual processes (n8n, AI), and developing custom solutions when no off-the-shelf tool is justified.

15 years of hands-on entrepreneurship—events, media, data & AI. I co-founded and led Ermes, a data/AI platform within the Redpill group, for 7 years. I built Nailio (SaaS for real estate) in 4 weeks by automating most of the development. This is the approach I apply for my clients.

Typical result: halving tool and process costs in less than 3 months.
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Conversational

Can work on-site
Paris (up to 50km)

Experience

  • Nailio
    Founder & Product Builder
    REAL ESTATE
    March 2026 - Today (3 months)
    Paris, France
    Design and development of a web and mobile SaaS for real estate professionals automating tenant application management, sales document analysis and summarization, and social media communication. Developed in 4 weeks. Stack: n8n, Supabase, AI. Currently in sales phase.
    Supabase n8n SaaS Artificial Intelligence Business Process Automation
  • Oplyn
    Independent Consultant
    CONSULTING AND AUDITS
    January 2026 - Today (5 months)
    Paris, France
    Oplyn — Independent consulting activity launched in 2026 after 7 years leading Ermes (data & AI platform, Redpill group).

    I assist companies in reducing their tool costs and automating their business processes. Three levers: stack audit (identifying redundancies and underutilization), design and deployment of custom workflows (n8n, generative AI, APIs), and development of internal solutions when no market tool is justified.

    Projects carried out in the events, communication, media, and real estate sectors.
    Audit Business Process Automation Cost Optimization Digital Transformation Consulting Organization Consulting
  • Ermes
    General Manager
    PRESS AND MEDIA
    June 2019 - March 2026 (6 years and 9 months)
    Île-de-France, France
    ERMES is a Mass Precision Marketing Platform for all advertisers. It allows very simply to use massive, quality data to, on the one hand, identify the right audiences to offer them relevant and effective advertising across all channels, and on the other hand, to measure, understand, and manage these campaigns in an agile manner to gain performance.
    Digital Transformation Consulting Artificial Intelligence Data Marketing Big Data

Recommendations

DB
HP
JL
+2
David Bressac and 4 other people have recommended William

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Education

  • Master 2 (M2) International & Business Management
    INSEEC
    2011
    Master 2 (M2)

Skill set

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