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Sébastien DuboisSD

Sébastien Dubois

CTO as a service | Expert IoT & AI | +16 yrs Exp

€850/day
Grenoble, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sébastien

Fractional CTO | Expert Embedded IoT & AI | From Strategy to Production

Looking to develop an innovative product? I will guide you from strategy to production.

16 years of experience covering the entire chain: hardware, firmware, software, cloud, AI, from design to industrialization. I founded Coho, an IoT+AI startup acquired by an international group, whose product was used by the French equestrian team at the Paris 2024 Olympics.

I work as a fractional CTO: a few days a week, immediately operational, without the constraints of recruitment.

What I do concretely:
  • Product strategy and techno-economic feasibility
  • IoT/AI architecture and technology choices
  • Prototyping and development (embedded, backend, AI)
  • Coordination of technical teams and subcontractors
  • Scaling from prototype to industrial production

My goal is simple: for your product to succeed.

Based in Grenoble, available for projects in France, Switzerland, and Europe.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Grenoble (up to 50km), Chambéry (up to 50km), Annecy (up to 50km), Genève (up to 50km), Lyon (up to 50km)

Experience

  • Seven Lakes Solutions
    Founder
    INTERNET OF THINGS (IOT)
    January 2026 - Today (5 months)
    Grenoble, France
    Fractional CTO for startups and SMEs developing innovative products integrating IoT or AI. I intervene from product strategy to industrialization, covering the entire technical chain: hardware, firmware, software, cloud, embedded AI.

    My goal is simple: for your product to succeed. I bring complete expertise without the constraints of full-time recruitment, immediately operational, with the flexibility to adjust my workload according to project progress.

    Available for projects in France, Switzerland, and Europe.
    Consulting Internet of Things Innovation Artificial Intelligence Product Strategy
  • Coho
    CEO & Founder
    INTERNET OF THINGS (IOT)
    January 2017 - December 2025 (8 years and 11 months)
    Grenoble, France
    Creation and complete development of an IoT+AI startup from A to Z: hardware (PCB, sensors), firmware (Python/Linux), cloud backend, mobile application, embedded AI. Fundraising (nearly €1M combined), team of up to 6 people. Product deployed at the Paris 2024 Olympics with the French equestrian team. Acquired by Gallagher Europe in 2024.
    Product Strategy Artificial Intelligence IS Architecture Prototype Industrialization
  • Gallagher Europe / Dijkstra Group
    Chief Technology Officer
    INTERNET OF THINGS (IOT)
    March 2024 - December 2025 (1 year and 9 months)
    Grenoble, France
    Following the acquisition of Coho by Gallagher Europe, I continued the development of the solution as CTO within the group. 100% international environment in English, with teams spread between the Netherlands and France. Management of complex AI and software developments, maintaining product velocity during the ownership transition, multi-country technical coordination, and integration of the solution into the group's ecosystem.
    IS Strategy Artificial Intelligence Subcontractor Management CTO Production Monitoring

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Education

  • Electronics Engineer
    Grenoble Institute of Technology
    2009
    Ingénieur en électronique
  • Electronics Engineer
    University of Waterloo
    2008
    Année d'échange au Canada

Skill set

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