Fractional CPO & CTO | 0 → 1 Builder | AI Strategy

Go from concept to product. Efficiently.

Co-Founder of Vitto Agtech. I co-built Vitto’s multi-platform ecosystem, taking it from concept to a robust and scalable innovation platform. I help startups move from 0 → 1, translating complex ideas into real products without requiring large product or engineering teams, acting as a Fractional CPO/CTO when needed.

Stephanie Marchesseau

Fractional CPO/CTO

Combined strategic and technical leadership for early-stage startups. I help you make the right product and architectural choices without the overhead of two executive roles.

Lean 0 → 1 Execution

Leveraging my experience building Vitto, I help you identify the shortest path to market, focusing only on what matters to validate your MVP.

Technical Product Fit

Bridging the gap between code and customer. I ensure your AI capabilities translate directly into user value, avoiding "tech-first" pitfalls.

Efficient Operations

Helping you build high-velocity, low-headcount teams. Achieve more with less by establishing clear processes and a culture of ownership.

Builder, Strategist & Technical Lead

My value comes from being both a strategist and a maker.

As the co-founder of Vitto Agtech, I didn't just define the product strategy, I also built the AI models and the full-stack platform myself. This hands-on experience allows me to understand exactly what it takes to get a complex product off the ground with limited resources.

For early-stage startups, this means I can help you navigate technical decisions and product fit simultaneously. I bring the expertise of 17+ years in R&D and product leadership to help you execute the 0 → 1 phase without the cost and complexity of large teams.

  • Founder, Vitto Agtech

    Current
  • Former Global Head of R&D

    Leadership Role
  • PhD Applied Mathematics

    Academic Background
  • 1,600+ research citations

    50 co-authored papers
  • 17+ Years Experience

    Building AI-driven systems

Talks, Awards & Publications

Talks

Take Control of Your AI Generative Technology

Keynote Speaker at JOTB - 2024

Awards
  • POLO TIC Mendoza 2025
    Vitto Agtech Winner – Empresa Privada con Mayor Impacto TIC
  • AgriTech Innovation Awards – EXPO Agritech Malaga 2025
    Vitto Agtech Finalist
Publications

Scientific Publications

  • 1,600+ citations on Google Scholar
  • h-index: 18
  • Young Scientist Award – MICCAI 2012
  • OPEN FUND Young Individual Research Grant (100K) – 2017

View Google Scholar profile

How I Work With Teams

I collaborate with early-stage teams building AI products and ecosystem platforms.

Product Strategy Session

A focused working session exploring product positioning, roadmap clarity, AI product direction, or platform design.

Product Advisory

Ongoing conversations with founders building AI products, ecosystem platforms, or innovation-driven companies.

Fractional CPO & CTO

Dual-role executive leadership to align your product vision with technical feasibility, ensuring you build the right thing effectively.

Lean Operations Setup

I help you design a lean organizational structure and high-performant team structure that prioritizes speed and autonomy, enabling you to ship faster with fewer resources.

The Lean Builder Advantage

Most startups hire too many people, too fast. My approach is different.

By leveraging my experience building Vitto solo, I help founders identify exactly what is needed to reach the next milestone. I advocate for a "builder mindset"—where product definition and technical execution happen in tight loops, reducing communication overhead and accelerating learning.

  • Eliminate the gap between Product and Engineering
  • Reduce burn rate by deferring non-critical hires
  • Focus on high-impact features that drive adoption
  • Establish technical foundations that scale
  • Building multidisciplinary teams
  • Establishing strong product culture and team spirit

Let's Connect

I work with a small number of teams each year. If you're building an AI product or platform and want to exchange ideas, feel free to reach out.