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Founders Associate – Internship or Apprenticeship

Internship(6 to 12 months)
Paris
Occasional remote
Salary: Not specified
Starting date: August 31, 2026

Estuaire
Estuaire

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Questions and answers about the job

The position

Job description

As a Founders Associate, you will work directly with Estuaire’s two co-founders and play a central role in building the company. You will contribute to strategic, operational and growth topics, and gain a 360° view of how a climate-tech startup scales.

Your Missions

Business & Strategy

  • Identify and reach out to potential customers

  • Pitch our solution and gather product feedback

  • Support fundraising: investor outreach, pitch decks, follow-ups

  • Contribute to certifications, partnerships, and ecosystem positioning

Marketing & Communication

  • Write articles, posts and newsletters on aviation sustainability

  • Manage communication channels (LinkedIn, newsletter, X)

  • Monitor performance metrics and suggest improvements

Operations & Internal Work

  • Draft and review contracts, procurement items and legal documents

  • Support hiring: screening, interviews, coordination

  • Contribute to team organization as we grow



Preferred experience

We are looking for a motivated, curious and impact-driven candidate.

Must-haves

  • Strong interest in climate, sustainability or aviation

  • Currently studying business, economics, or a related field

  • Excellent written English

  • Autonomy, reliability and the ability to get things done

  • A creative, problem-solving mindset

Nice-to-haves

  • Prior experience in startups, consulting or BD

  • Interest in tech, regulation or environmental policy

  • French is a plus but not required

We hire for potential, not for perfection!


Recruitment process

  • 15-minute interview with our current Founders Associate
    → Motivation, background, expectations

  • 30-minute interview with the co-founders
    → Conversation about interests and alignment
    → A short “day-at-work” case to understand your approach to real situations