Web3 Backend Developer Intern - 230+ offres

Ampstek

Backend Developer Labège, France-Hybrid Responsibilities Design, develop, and maintain scalable and reliable code. Collaborate with product managers and other departments to understand their requirements. Implement and manage monitoring and alerting systems to ensure the health and performance of ou

GALILEO RH

Mon client, start-up SaaS française recrute son Lead Developer Backend Java pour porter le Digital Data Hub : référent technique de l'équipe, garant de l'architecture, de la qualité du code et de l'évolution des modèles de données. 🎯 Tes missions Leadership technique & développement : conceptio

Kolsquare | B Corp™

About Kolsquare Kolsquare is the #1 Influencer Marketing software solution in Europe , used by marketing professionals for managing KOL Marketing campaigns (K.O.L for Key Opinion Leaders, aka Influencers), and designed to optimize brand communication strategies in response to new digital challenges.

Objectifs du poste : Piloter la transformation du backend vers une architecture scalable et maintenable. Réduire la dette technique et améliorer la performance globale. Structurer les pratiques en matière de qualité, d?observabilité et d?exploitabilité. Accompagner les équipes dans leur montée en co

collectivework

Job description Taux journalier (TJM): 600 We’re supporting a fast-growing French scale-up operating several SaaS products and a B2B marketplace, with strong technical challenges around scalability, reliability and performance in an international context. Mission – Key Responsibilities (Tech-focused

Worldia

Worldia is a B2B2C travel platform for tailor-made trips. We enable any partner to tap into the huge potential of individualized travel by combining a powerful technology, a top-quality product curation and a premium customer service. After having raised 19M€ in 2019, Worldia is building from scratc

365Talents

We are seeking several developers with varying levels of experience to help build a new team within our organization; these are newly created positions that will be phased in by our existing teams. The Senior Backend Developer is a key contributor within her-his team’s scope and also regularly contr

AccorCorpo

Accor Tech & Digital is the power engine of Accor technology, digital business and transformation. Our 5,000 talents are committed to deliver the best tech and digital experiences to our guests, hotels and staff across 110 countries and to shape the future of hospitality. Accor Tech & Digita

DATALIA

🚀 Stage Développeur BACK-END / Node.js (H/F) – 8 semaines → Convention obligatoire → Temps plein → Stage non rémunéré → Disponibilité : 1 juillet – 28 août 2026 (8 semaines) 🌐 À propos de DATALIA DATALIA est une société spécialisée dans le développement de solutions SaaS sur mesure, d’architecture

Leboncoin.fr

Description Du Poste leboncoin est le 1er site généraliste de vente entre particuliers en France, leader sur les marchés de l’immobilier et de l’automobile, et un acteur clé dans l’emploi et la location de vacances. Chaque mois, plusieurs millions de Français utilisent leboncoin pour consulter, publ

BairesDev

At BairesDev®, we've been leading the way in technology projects for over 15 years. We deliver cutting-edge solutions to giants like Google and the most innovative startups in Silicon Valley. Our diverse 4,000+ team, composed of the world's Top 1% of tech talent, works remotely on roles that drive s

BairesDev

At BairesDev®, we've been leading the way in technology projects for over 15 years. We deliver cutting-edge solutions to giants like Google and the most innovative startups in Silicon Valley. Our diverse 4,000+ team, composed of the world's Top 1% of tech talent, works remotely on roles that drive s

Embross

Work Location: Bergerac, France Salary: Compensation based on experience and skills Job Type: Full-time permanent contract (CDI) Who We Are Embross is a dynamic technology company specializing in the manufacturing and development of self-service solutions for leading airports and airlines worldwide.

Odaseva

60 000 € - 73 000 € /an

Since 2012 Odaseva has helped global enterprises secure and manage their most valuable asset: data. The Odaseva EnterpriseData Platform secures and manages Salesforce data, ensuring data resilience, regulatory compliance, and unlocking the value of data. It’s built to solve the complex challenges of

DATALIA

🚀 Stage Développeur BACK-END / Node.js (H/F) – 8 semaines → Convention obligatoire → Temps plein → Stage non rémunéré → Disponibilité : 1 juillet – 28 août 2026 (8 semaines) 🌐 À propos de DATALIA DATALIA est une société spécialisée dans le développement de solutions SaaS sur mesure, d’architecture

Payplug

Description Payplug est la solution de paiement française pensée pour les commerçants, e-commerçants de toutes tailles et fintechs. Avec notre plateforme technologique de pointe, nos outils dédiés à la conversion et notre maîtrise unique de la chaîne de paiement, nous vous invitons à viser le meille

Veepee

Pioneer of online flash sales since 2001 and key player in European e-commerce, Veepee collaborates with over 7,000 brands to offer highly discounted products available for a limited time. Operating across various sectors, including fashion, home, wine, travel or beauty... Veepee achieved a turnover

Ampstek

Role: Backend .NET Developer Location: Paris, France (Hybrid) Duration: 12 Months Experience: 8+ Years We are looking for an experienced Backend .NET Developer with strong expertise in payment systems and API development. Key Responsibilities: Design and develop payment modules and payment APIs Work

Salt

Senior Python Technical Lead / Lead Backend Engineer (Freelance Contract) - Banking Client Locations: Paris, France or Brussels, Belgium Hybrid working model: 8 days onsite per month, remainder remote Rate: €700 - €800 per day Overview We are looking for an experienced Senior Python Technical Lead t

Jobgether

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Fullstack Web3 Senior Developer in France. This role offers an exciting opportunity to work on innovative Web3 and blockchain-driven projects within a fast-growing international technology environment