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, crowdfunding, and gamification.

We are looking for motivated interns to join our technical team and contribute to the development of our application.

Responsibilities

• Participate in the frontend (UX/UI) and backend development of our Web3 application.
• Collaborate with the team to create a fluid and intuitive user experience.
• Contribute to the implementation of innovative features related to crowdfunding and 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 Rust is a plus.
• Interest in Web3, blockchain, and cryptocurrencies (experience with Solana is a plus).
• Team player, autonomous, creative, and eager to learn.

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.

Internship Details

• Duration: 2 months
• Type: Unpaid internship
• Location: Remote (startup based in Paris)
• Start Date: As soon as possible (January - February 2026)