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Jefferson DelvalléeJD

Jefferson Delvallée

Web developer & AI agent creator

€550/day
Mons, BE
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Jefferson

👋 Hello, I'm Jefferson — a web developer & AI agent creator based in Mons (Belgium).

🚀 What I do:
I design websites that convert AND AI solutions that automate repetitive tasks in your business. Shopify specialist, I transform your ideas into concrete results — not just pixels.

💼 My specialties:
• Shopify e-commerce sites (from simple stores to complex catalogs)
• Showcase websites for SMEs, artisans, and freelancers
• Custom AI agents (content generation, SEO automation, customer support)
• Technical & on-page SEO (Google Search Console, Schema.org, Core Web Vitals)
• Redesign & migration of existing sites

🎯 What sets me apart:
Unlike traditional agencies, I combine web development AND artificial intelligence. Specifically, I can deliver a website that updates automatically, a chatbot that qualifies your leads, or an SEO agent that generates your Shopify product descriptions (I created Seotif.com for this).

📂 My recent projects:
• Delvale.com — Shopify women's fashion store
• Petscompare.com — Pet product comparison site
• Delvablue.com — Toy store for 0-12 year olds
• Seotif.com — Shopify SEO AI agent (my SaaS)

💬 How I work:
Response within 24 hours, transparent quotes, prototype in 48 hours, delivery within 7-15 days depending on the project. I prefer projects where I can bring real added value — not copy-pasted templates.

📞 Immediately available for short (1-5 days) or long (1-3 months) assignments.

Let's talk about your project! 🚀
  • French

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Creopus
    Founder · Freelance Web Developer
    DIGITAL AND IT
    January 2025 - Today (1 year and 6 months)
    Mons, Belgium
    I'm Jefferson, founder of Créopus, an independent web agency based in Mons (Belgium). I design, develop, and code custom websites for artisans, freelancers, SMEs, and e-commerce businesses. No templates. No recycled Wix sites. Coded line by line, delivered on time.

    🎯 WHAT I CAN DO
    - Showcase sites & landing pages (from €499)
    - Shopify / WooCommerce e-commerce stores (from €1299)
    - Logos & visual identities (from €149)
    - Monthly maintenance & support (from €39/month)

    📂 RECENT PROJECTS

    • Delvale.com — Multi-brand fashion e-commerce (Karl Lagerfeld, EA7, Calvin Klein, Tommy Hilfiger, Guess, LIU JO, New Balance). Black & red art direction, Bancontact + Stripe payment, multi-language FR/NL/DE.

    • Petscompare.fr — Independent price comparison site scanning 13,094 products every morning from 8 European stores. Editorial magazine format, free, no ads.

    • Delvablue.com — Children's toy store for ages 0-12 (coming soon). Warm art direction.

    • Seotif.com — Shopify SEO AI agent that I designed and developed myself. It rewrites product descriptions, generates blog posts, audits the store, optimizes for ChatGPT/Perplexity, and publishes everything autonomously. SaaS marketed in 4 plans (Free → Business).

    ⚙️ TECHNICAL STACK
    HTML5, CSS3, Vanilla JavaScript, Node.js / Express, Shopify (Liquid + Admin API), WordPress, GPT-4 / OpenAI API, JSON-LD schema, Google Search Console API, Stripe, Figma, Railway / OVH hosting.

    🚀 MY PROMISE
    - Deadlines met (Landing 5-7 days, Showcase 10-15 days, E-commerce 2-4 weeks)
    - Fixed prices clearly stated, no surprises
    - Detailed quote within 24 hours
    - Clean, performant code, SEO optimized from the start
    - Website that remains 100% yours

    Quote within 24 hours at creopus.be — No commitment.

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