CEO Right Hand Intern

il y a 1 semaine


Paris, France Ilion Water Technologies Temps plein

At Ilion Water Technology, a watertech spin-off from the École Normale Supérieure (ENS) in Paris, we are developing an innovative pressure-free reverse osmosis technology, stemming from our nanofluidics research work.

Our technology, currently under development, has already been recognized with several distinctions, notably:

- Winner of the Innovation Award at Pollutec Paris 2024;
- Finalist of the Miriam Balaban competition, organized by the European Desalination Society 2025;
- Currently in the running for the international desalination competition XPRIZE.

We are confident that our approach can simplify the operating conditions of reverse osmosis skids and significantly reduce their cost and environmental impact. Indeed, our pressure-free technology has anti-fouling properties aimed at decreasing energy consumption and the need for chemical products. It also integrates a system for real-time water quality monitoring.

**Description du poste**:
Paris 75005 (On-site) | Start date: March 2026 Contract: Internship - Full-time - 6 months

About Ilion

At Ilion Water Technologies, we are developing cutting-edge desalination and water treatment technologies rooted in fundamental science. Our work combines nanofluidics, electro-driven processes, and advanced membrane engineering to solve the water industry's urgent operational, cost, and environmental challenges.

Your mission as CEO Right Hand

You'll be the ultimate support for our CEO, Lucie Ries, helping to drive our mission and scale our ambition fast. Think co-pilot: assisting with tasks, dissecting problems, finding innovative solutions, and crafting action plans. This role is super varied - you'll be key in building our A-Player team, prepping for exciting new ventures, and supporting all things HR, finance, legal, and office management.

If you're passionate about **deep tech**, **sustainability**, and **entrepreneurship**, and are looking for a challenging yet rewarding internship, we want to hear from you

What you will do
- Refining our business plan and conducting analysis for future fundraising.
- Conducting market research, providing key insights.
- Helping cultivate relationships with stakeholders (investors, clients, partners).
- Preparing materials for All-Hands and board meetings.
- Supporting our HR strategy to hit recruitment goals.

What we offer

A stimulating role in a mission-driven startup where your ideas have a real impact.
- High exposure to venture capital and the startup ecosystem
- Supportive, agile and talented team
- Strong growth & learning opportunities
- Restaurant card (Swile) and 50% Navigo pass reimbursement

**Profil recherché**:
What you bring
- Strong analytical skills - data-driven problem-solver.
- Experience in fast-paced environments.
- Serious autonomy and eagerness to learn daily.
- Exceptional attention to detail and high versatility.
- Passion for entrepreneurship and thriving in dynamic settings.
- Outstanding communication skills (written and verbal).
- English proficiency (ideally, multinational experience)


  • CEO Right-Hand Intern

    il y a 2 jours


    Boulevard Poissonnière, Paris, France Kumulus Water Temps plein

    Join Kumulus as the CEO Right-Hand Intern and work directly with our founder–CEO on finance, strategy and growth. You will prepare key analyses and reports, follow grants and fundraising topics, and support go-to-market projects across several countries in a mission-driven water-tech startup.What You'll Be DoingYou will work hand-in-hand with the CEO on a...

  • Right hand of the CEO

    il y a 4 jours


    Paris, Île-de-France Initiativ Temps plein

    Company DescriptionInitiativ is a fintech building the first on-chain trading platform for carbon allowances in Europe. Our mission is to bring transparency, efficiency, and liquidity to the EU carbon markets by leveraging digital technology. We work with industrial players, financial institutions, and regulators to enable a seamless transition to open...

  • Right-hand CEO

    il y a 3 jours


    Paris, France Paradox Temps plein

    **But wait a minute.** **Deep inside you are looking for a new adventure with** - ** Freedom : feeling free to work remotely or hybrid and being trusted to deliver** - ** Ambition : growing up surrounded by smart colleagues driven to create something big** - ** Impact**: contributing to transform people lives at scale **And you deserve it because** - You...

  • Right-Hand CEO

    il y a 11 heures


    Paris, France Paradox EN Temps plein

    Join to apply for the 🇫🇷 Right‑Hand CEO (French Fluent) role at Paradox EN. We’re looking for a strategic right‑hand to a high‑performance CEO, operating at breakneck speed and helping scale an ambitious company that’s reinventing how people learn, grow, and lead. ✅ A deep, genuine interest in AI is absolutely non‑negotiable. If you’re...

  • CEO Right-Hand

    il y a 4 jours


    Rue Washington, Paris, France Guideflow Temps plein

    We are looking for a Right-Hand to assist our CEO daily, closely working on strategic and operational topics.As we continue to grow, we seek someone passionate about entrepreneurship and/or tech who wants to be at the forefront of this adventure.Your future missions within our team:Participate in the growth of GuideflowDevelop commercial relationships with...

  • Alternance - Right Hand to CEO

    il y a 2 semaines


    Paris, France Ozamba Group Temps plein

    **About us** In Myènè, a language spoken in Gabon, Ozamba means « access », or « opening doors ». Our mission is driven by profound commitments: unlocking potential and creating a legacy. We strive to foster inclusion and cultivate the leaders of tomorrow. Our story is based on the idea that every opportunity we create, every talent we represent,...


  • Paris, France Versant Temps plein

    A sustainability startup in Paris is looking for a right arm operations intern to support the CEO and manage various operational tasks related to customer projects. The ideal candidate should be passionate about ecological impact, detail-oriented, and fluent in English and French. This internship offers a unique opportunity to influence and assist in solving...

  • CEO Office Intern

    il y a 1 semaine


    Paris, France Euronext Temps plein

    Start Date - January 2026 6 months internship (Stage) Euronext is looking for an intern to support the offices of the Group CEO and Euronext Paris CEO, for 6 months. You will work directly with the Chief of Staff of the Group CEO and the Paris CEO Business Manager. You will contribute to strategic projects, be responsible for transversal internal projects...


  • Paris, France Jots Temps plein

    We are looking for the CEO's right arm! You are super motivated and like to get the job done. You have an **entrepreneurial** **spirit**, and would like to assist in the **launch and growth of a startup**. You will help with marketing, with product positioning & market fit, with communication, with finances & funding, and everything that becomes urgent &...

  • CEO Office Intern

    il y a 3 jours


    Paris, France Euronext Temps plein

    Euronext is looking for an intern to support the offices of the Group CEO and Euronext Paris CEO, for 6 months. You will work directly with the Chief of Staff of the Group CEO and the Paris CEO Business Manager. You will contribute to strategic projects, be responsible for transversal internal projects of Euronext Paris and produce insights for both CEOs,...