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Voix ou texte — l'IA vous interviewe en temps réel. Notation instantanée, feedback détaillé, 10 langues.
83+ développeurs apprennent sur LevelJo
83+
Développeurs
16+
Courses
4395
Max XP
10
Languages
SANS INSCRIPTION
Découvrez nos outils sans créer de compte. Voyez ce que LevelJo peut faire pour vous.
HOW IT WORKS
Write real code with interactive courses powered by the Monaco editor. Progress step by step with instant feedback.
Every completed step earns XP. Climb the global leaderboard and prove your skills with real data.
WHY LEVELJO?
Write real code in the same editor as VS Code. Syntax highlighting, autocomplete and instant error checking.
Pratiquez des entretiens réalistes avec l'IA dans 50+ métiers. Chat vocal, défis de code et notation détaillée — tout en un seul endroit.
50+
Sujets d'Entretien
10
Langues
FEATURED COURSES
Apprenez des stratégies de médias sociaux efficaces pour votre entreprise. De l'analyse de l'audience à la planification de contenu, en passant par la publicité payante et la mesure des performances.
Learn to design scalable systems. Master load balancing, caching, database sharding, microservices, and real-world case studies.
From data preprocessing to deep learning. Learn scikit-learn, TensorFlow, model evaluation, and real-world ML projects.
Build cross-platform mobile apps with React Native. Learn navigation, native APIs, state management, and app store deployment.
Build complete web applications from frontend to backend. Learn Node.js, Express, databases, authentication, and deployment.
Master Python from basics to advanced topics. Learn data structures, OOP, file handling, and popular libraries.
Deep dive into JavaScript: closures, prototypes, async/await, generators, proxies, and modern ES2024+ features.
Learn TypeScript from type basics to advanced generics, utility types, and real-world patterns used in production codebases.
Master SQL from SELECT to advanced joins, indexing, transactions, and database design patterns.
Master Git from init to advanced workflows. Learn branching, merging, rebasing, and team collaboration with GitHub.
Build scalable backend services with Node.js. Learn Express, REST APIs, authentication, databases, and deployment.
Master Next.js App Router, Server Components, API routes, authentication, and deployment on Vercel.
Learn Docker from scratch. Build, ship, and run containers. Master Docker Compose, networking, and production workflows.
Learn cybersecurity essentials: OWASP Top 10, encryption, network security, authentication, and ethical hacking basics.
Learn data analysis using Python and Pandas. A practical journey through data cleaning, visualization, and basic statistics.
Learn the most popular frontend library from scratch. Master component architecture, props, state, hooks, and event handling step by step.
Apprenez des stratégies de médias sociaux efficaces pour votre entreprise. De l'analyse de l'audience à la planification de contenu, en passant par la publicité payante et la mesure des performances.
Learn to design scalable systems. Master load balancing, caching, database sharding, microservices, and real-world case studies.
From data preprocessing to deep learning. Learn scikit-learn, TensorFlow, model evaluation, and real-world ML projects.
Build cross-platform mobile apps with React Native. Learn navigation, native APIs, state management, and app store deployment.
Build complete web applications from frontend to backend. Learn Node.js, Express, databases, authentication, and deployment.
Master Python from basics to advanced topics. Learn data structures, OOP, file handling, and popular libraries.
Deep dive into JavaScript: closures, prototypes, async/await, generators, proxies, and modern ES2024+ features.
Learn TypeScript from type basics to advanced generics, utility types, and real-world patterns used in production codebases.
Master SQL from SELECT to advanced joins, indexing, transactions, and database design patterns.
Master Git from init to advanced workflows. Learn branching, merging, rebasing, and team collaboration with GitHub.
Build scalable backend services with Node.js. Learn Express, REST APIs, authentication, databases, and deployment.
Master Next.js App Router, Server Components, API routes, authentication, and deployment on Vercel.
Learn Docker from scratch. Build, ship, and run containers. Master Docker Compose, networking, and production workflows.
Learn cybersecurity essentials: OWASP Top 10, encryption, network security, authentication, and ethical hacking basics.
Learn data analysis using Python and Pandas. A practical journey through data cleaning, visualization, and basic statistics.
Learn the most popular frontend library from scratch. Master component architecture, props, state, hooks, and event handling step by step.
Tarifs
Commencez gratuitement, passez au supérieur quand vous êtes prêt.
Parfait pour débuter
Créez un compte gratuit, complétez des cours et prouvez vos compétences en programmation.
Aucune carte de crédit requise. Votre premier cours est entièrement gratuit.
Crée ton compte gratuit et commence à apprendre
CommencerSuivez votre progression au classement et prouvez votre expertise avec des badges XP.
Générez un CV professionnel compatible ATS depuis votre profil. Affichez cours, scores et compétences vérifiées.
Pierre Dupont
Full Stack Developer
Real-time global ranking. Compete with other candidates and get on companies' radar.
4
Niveaux de Difficulté
Logiciel & Tech
Business
Design
Ingénierie
Éducation
Créatif & Médias
Choisissez parmi 50+ sujets dans 6 industries
Voix ou texte — notre IA s'adapte en temps réel
Feedback détaillé sur les connaissances, la communication et la résolution de problèmes
Alex
Senior Interviewer
Alex
Vous
Score Global
Sans carte de crédit — 3 sessions gratuites par mois
Les 7 premiers jours sont offerts
Découvre tous les cours Pro, exécute du code et progresse avec ton mentor IA — sans engagement.
Accès complet à tout.