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Jeffrey O.JO

Jeffrey O.

AI Product Builder - AI Agents · Claude Code · MVP

€500/day
Paris, FR
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Jeffrey

AI Product Builder based in Paris.

I build your business AI assistant: a WhatsApp or Telegram bot, connected to your calendar or your FAQ, that responds to your clients for you. Operational in a few days. No useless meetings, no team of 10: just AI code and a functional, safe, and scalable product.

——— WHAT I BUILD ———

‣ A custom business AI assistant: WhatsApp/Telegram, grounded on your real information, connected to the tools you already use (calendar or FAQ)
‣ Dedicated and sovereign hosting available as an option for enhanced privacy needs

——— SOME ACHIEVEMENTS ———

→ FDLM 2026 Website (fdlm-2026.netlify.app): platform for 192 Parisian musical events — multi-source scraping, event mapping, deployed in 2 days

→ First AI voice agent build (internal R&D, construction professionals): allowed me to identify real technical limitations (actual API costs, telecom constraints) — fed into the design of the current offering

→ Sinaleya: e-commerce store in the process of launching (products, AI visuals, payments, logistics)

→ Facturo + FinTrack: tools I developed and use myself daily (React + Supabase)

——— MY EDGE ———

I use Claude Code as my primary development tool — I deliver 3 to 5x faster than a classic developer, for an identical or superior result.

——— LAUNCH OFFER ———

🎯 I am in the launch phase on Malt. For my first 3 clients, I offer a preferential rate of €250/day (instead of €500) in exchange for a detailed review + testimonial.

——— HOW WE WORK ———

1. 30-min call to define the need
2. Brief + quote within 24h
3. Intermediate deliveries every 48-72h
4. Final delivery + complete documentation
  • French

    Native or bilingual

  • English

    Native or bilingual

  • Portuguese

    Fluent

  • Spanish

    Conversational

Remote only
Primarily works remotely

Experience

  • OJ-Agency
    AI Product Builder — Business AI Assistant (WhatsApp/Telegram)
    SOFTWARE PUBLISHING
    January 2026 - Today (7 months)
    Paris, France
    AI Product Builder based in Paris. I build business AI assistants (WhatsApp/Telegram) for VSEs/SMEs — connected to their real tools, operational in a few days.

    Achievements:
    · FDLM 2026 Website (fdlm-2026.netlify.app) — Platform for 192 Parisian musical events. Multi-source scraping, real-time interactive map. Deployed in 2 days.
    · First AI voice agent build (internal R&D, construction professionals) — allowed identification of real technical limitations (actual API costs, telecom constraints), fed into the design of the current offering. Stack: Vapi + WhatsApp + Twilio.
    · Sinaleya — E-commerce store in the process of launching. AI-generated visuals, payments, logistics.
    · Facturo — Invoicing tool I developed and use myself. Next.js + Supabase + Stripe.
    · FinTrack — Personal financial tracking application I use daily. React + Supabase.
    · Quadrant — Task manager + habit tracker I use daily. Next.js.

    Services: Business AI Assistant (WhatsApp/Telegram), API integrations, workflow automation

    Stack: Claude Code, Claude API, Next.js, React, Supabase, n8n, Vercel
    Next.js Supabase Artificial Intelligence Automation Claude Code
  • Learning Robots
    Growth Hacker — AI Startup
    TECH
    September 2024 - September 2025 (1 year)
    Paris, France
    Within a startup specializing in AI and robotics education, managed the entire growth strategy: B2B acquisition, sales process automation, and digital communication.

    • Multichannel B2B Prospecting (Lemlist, email, LinkedIn): ICP targeting, qualification, appointment setting — SMEs, large accounts, educational institutions.
    • Odoo CRM Deployment: pipeline setup, segmentation, nurturing sequences, and outbound assets.
    • Event-based Lead Gen: B2B webinar (≈20 registrants), VivaTech 2025, BETT London — B2B decision-maker qualification.
    • Digital Communication: LinkedIn, blog, YouTube — content and video creation (Filmora).
    • Implementation and monitoring of marketing KPIs to drive strategy.
    Artificial Intelligence Automation React Next.js Supabase

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Education

  • Master of Science — Information Systems & Digital Marketing
    Institut Mines Télécom – Business School
    2025
    Systèmes d'information, Data Analytics, Marketing Acquisition & Conversion, Management Agile, Gestion de Projet, Économétrie & Analyse de la Donnée, Finance d'Entreprise, Droit des Affaires, Conception des SI
  • University Exchange – Business Administration (Master's Degree)
    University of São Paulo – FEA
    2024
    Financial Management, Quantitative Methods, Marketing Research, Mathematical Proof Theory, Business Law

Skill set

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