CTO - Startup Greentech

il y a 3 jours


Paris, France LoopS Temps plein

Who We Are

LoopS is an environmental project built on a simple vision: give communities the tools to turn their organic waste into local, affordable and clean energy.

19 000 Eiffel Towers : that’s the mass of organic waste generated in Europe every year. Most of it ends up incinerated or landfilled, generating high greenhouse gases emissions and squandering resources. The existing recovery processes are expensive and unsuitable for cities.

We are designing a small-scale and affordable waste recovery process.

Our mission: make circular solutions accessible everywhere, for everyone.

We are currently entering a new R&D phase, in partnership with AgroParisTech's InnLabs, the European Center for Biotechnology and Bioeconomics, and partner companies committed to environmental protection. We are looking for a scientist and late co-founder to work with us in the early stages of development, and to lay the technical foundations of the project.

**Description du poste**:
**Your Role — CTO Co-founder**

Location: Paris - Saclay - Pomacle - Hybrid possible

Start date: October 2025

As a CTO and co-founder, you’ll join the founder and our research partners to develop a starchy waste recovery process.

**Your missions**
- Co-develop a bioprocess for the valorization of starchy food waste and coproducts
- Set up and run lab experiments, including bench-scale tests and pilots
- Analyze and document results, yields, kinetics, and process performance
- Drive iterative improvement based on data and feedback
- Take part in the prototyping
- Contribute to scientific partnership building and research framing
- Help structure the future scientific team
- Take an active part in strategic decisions

**What We Offer**
- A core role in a mission-driven project, from research to deployment
- A deep dive into applied research, framed by real-world constraints and impact
- Space for autonomy, initiative, and decision-making — we’re building together
- Shared equity as part of the founding team and governance opportunities
- A working culture built on trust, clarity, empathy - and, please, good humor

**Profil recherché**:
**The job is made for you if you are**
- Personally driven by environmental causes
- A scientist or engineer, with a Master’s, engineering degree, or PhD in biochemistry, microbiology, or bioprocess engineering
- Experienced in lab work: fermentation, microbial cultures, analytics, lab protocols
- Excited by collaborative work, open dialogue, and interdisciplinary challenges
- Eager to take on technical and strategic responsibilities
- Curious, autonomous, rigorous, and willing to build something from scratch
- Looking for a meaningful and exciting adventure

Bonus points for people who:

- Have prior experience with anaerobic digestion, alcoholic fermentation, or waste recovery in general
- Desire to get involved in a long-term project with environmental and human impact
- Are fun :)

**One Last Thing**
You don’t have to tick all the boxes - we’re looking for humans, not checklists.

If you are looking for an impact-driven scientific project, and eager to make a difference, we’d love to hear from you


  • CTO Startup founder

    il y a 1 jour


    Paris, France Startup Wise Guys Temps plein

    CTO Startup Founder Join Startup Wise Guys, the hottest B2B accelerator in Europe, to found a startup and lead the technology. You have strong technical expertise and are ready to co‑found a B2B startup. This unique opportunity invites you to participate in the Founders Club, a 3‑month fully online paid program. Tasks Develop a concept, obtain a proof of...

  • CTO Startup founder

    il y a 2 semaines


    Paris, Île-de-France Startup Wise Guys Temps plein

    You are looking to found a startup and have strong technical expertise, but you don't have the right co-founder to start with? This is a unique job opportunity for you.Startup Wise Guys (SWG), the hottest B2B accelerator in Europe, with a +70% survival rate among founded companies, invites you to participate in the Founders Club. Engage with other...

  • CTO Startup founder

    il y a 4 jours


    Paris, France Startup Wise Guys Temps plein

    OverviewStartup Wise Guys (SWG), the hottest B2B accelerator in Europe, invites you to participate in the Founders Club. Engage with other co‑founders, define a powerful idea, and initiate your B2B startup in a 3‑month fully‑online paid program. TasksDevelop a concept and obtain a proof of concept by defining the product/service, strategies and plans,...

  • CTO Startup founder

    il y a 1 semaine


    Paris, France Startup Wise Guys Temps plein

    You are looking to found a startup and have strong technical expertise, but you don’t have the right co-founder to start with? This is a unique job opportunity for you.Startup Wise Guys (SWG), the hottest B2B accelerator in Europe, with a +70% survival rate among founded companies, invites you to participate in the Founders Club. Engage with other...

  • CTO Startup founder

    il y a 1 semaine


    Paris, France Startup Wise Guys Temps plein

    You are looking to found a startup and have strong technical expertise but you dont have the right co-founder to start with This is a unique job opportunity for you. Startup Wise Guys (SWG) the hottest B2B accelerator in Europe with a 70% survival rate among founded companies invites you to participate in the Founders Club. Engage with other co-founders...

  • Chief Technology Officer

    il y a 2 semaines


    Paris, France Licorne Society Temps plein

    Licorne Society est à la recherche de Chief Technology Officer / CTO pour des startups innovantes, ne laisse pas passer ta chance ! C’est quoi Licorne Society ? Licorne Society est le seul outil qui te met en relation avec plus de 3000 startups recrutant en France, tous secteurs et métiers confondus. Qu’elles soient en création ou en phase...

  • CTO Startup HR Tech

    il y a 4 jours


    Paris, France JobVisionary Temps plein

    JobVisionary réinvente le recrutement grâce à l’IA et aux profils vidéo. Notre plateforme permet aux candidats de se présenter une fois et aux entreprises de trouver le meilleur fit rapidement, sans perdre de temps dans les entretiens répétitifs. Nous sommes à la recherche d’un(e) CTO passionné(e) et visionnaire pour rejoindre l’aventure....


  • Paris, France Licorne Society Temps plein

    Licorne Society a été mandaté par une startup à impact pour recruter un CTO. **Missions et responsabilités**: En tant que CTO, tu auras en charge de: - Manager et planifier le développement de l’équipe tech, assurer la mise en œuvre et la maintenance de l'architecture technique de notre produit - Veiller à ce que l'équipe respecte les normes de...


  • Paris, France LynxBiotech Temps plein

    Offre ouverte aux profils expérimentés tout comme aux étudiant.e.s motivé.e.s en fin d'étude, année de césure ou en thèse. Nous recherchons un.e CTO pour travailler main dans la main avec notre CTO actuel, qui est en distanciel et ne peut donc pas faire de manip. Au-delà d’un expert technique, nous cherchons quelqu’un prêt à s’investir...

  • Full Stack React

    il y a 2 semaines


    Paris, France Licorne Society Temps plein

    Licorne Society a été missionné par une startup Sustainable Finance en pleine croissance pour les aider à trouver leur Full Stack React / NodeJS **L'entreprise**: L'entreprise est une Greentech à impact qui accélère la transition vers une économie responsable. leur finalité : aider les entreprises et les acteurs financiers à travailler de concert...