Blockchain Developer Internship
MOSTRO.xyz
Paris, France
Internship · Hybrid
25 Apr, 2026
Skills
JavaScript
React
About the Role
**Backend / Frontend (UX/UI) Developer Internship – 2 months (unpaid)**
**Web3 Music Startup – Mostro**
**About Mostro**
Mostro is an innovative startup at the intersection of music and Web3. We are developing a platform for artists and fans, integrating tokens, rewards and gamification.
We are looking for motivated interns to join our technical team and contribute to the development of our application.
**What We Offer**
- Hands-on experience in developing a real product within a startup context.
- The opportunity to contribute to a project launching in beta.
- A creative, agile, and high-energy environment.
**Responsibilities**
- Participate in the frontend (UX/UI) and backend development of our Web3 application.
- Collaborate with the team to complete tasks and build out the application.
- Contribute to the implementation of innovative features related to tokenization.
- Provide ideas and solutions in a fast-evolving startup environment.
**Candidate Profile**
- Student or recent graduate in Computer Science, Web Development, or equivalent.
- Knowledge of JavaScript, React, Node.js, and APIs.
- Knowledge of Solidity and experience with smart contracts are preferred.
- Interest in Web3, blockchain, and cryptocurrencies.
- Team player, autonomous, creative, and eager to learn.
**Internship Details**
- **Duration:**
2 months, minimum 20 hours/week
- **Type:**
Unpaid internship
- **Location:**
Remote (startup based in Paris)
- **Start Date:**
As soon as possible (May - June 2026)
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