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Founded by passionate advocates of learning and innovation, Learni set out to make professional training accessible to everyone, everywhere in the world. Our team works in the largest cities such as Paris, Lyon, Marseille, and internationally, to support talents and organizations in their skills development.
Which format do you prefer?
30 free minutes with a training advisor — no commitment.
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Artificial Intelligence training in Raleigh in June 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
Artificial Intelligence training in San Francisco in October 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
Discover essential strategies, trends, and training programs for organizations to excel in data governance by March 2026. Stay compliant and leverage data effectively.
Professional Training training in Memphis in October 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
Don't let this gap widen
Sans maîtrise React expert, vos apps perdent 50% de trafic mobile par lenteurs (Google Lighthouse).
Imaginez des bugs state en prod causant 20h/semaine de debug, des users frustrés abandonnant (taux 40% chute), surcoûts serveur x3 sans optimisation SSR, concurrents devançant avec Next.js.
Évitez retards projets (moyenne 2 mois), salaires stagnants sans skills avancées, audits sécurité ratés.
Investissez 14h pour ROI x10 en productivité, scalabilité infinie, promotions assurées.
The Formation React Expert - Optimisez Performances et Échelle training is delivered in-person or remotely (blended-learning, e-learning, virtual classroom, remote in-person). At Learni, a Qualiopi-certified training organization, each program is designed to maximize skills acquisition, regardless of the training mode chosen.
The trainer alternates between demonstrative, interrogative, and active methods (through practical exercises and/or real-world scenarios). This pedagogical approach ensures concrete and directly applicable learning in the workplace.
To ensure the quality of the Formation React Expert - Optimisez Performances et Échelle training, Learni provides the following teaching resources:
For in-house training at a location external to Learni, the client ensures and commits to having all necessary teaching materials (IT equipment, internet connection...) for the proper conduct of the training action in accordance with the prerequisites indicated in the communicated training program.
The assessment of skills acquired during the Formation React Expert - Optimisez Performances et Échelle training is carried out through:
Learni is committed to the accessibility of its professional training programs. All our training programs are accessible to people with disabilities. Our teams are available to adapt teaching methods to your specific needs. Do not hesitate to contact us for any accommodation request.
Learni training programs are available for inter-company and intra-company settings, both in-person and remote. Registration is possible up to 48 business hours before the start of training. Our programs are eligible for OPCO, Pôle emploi, and FNE-Formation funding. Contact us to discuss your training project and funding possibilities.
Plongez dans les hooks personnalisés en créant des solutions réutilisables pour des states globaux, enchaînez avec des exercices sur useReducer et Context API pour scaler sans boilerplate, testez sur un dashboard e-commerce réel, produisez des livrables fonctionnels prêts pour prod, tout en mesurant les gains de performance immédiats.
Optimisez votre app via React.memo, useCallback et virtualisation List, migrez vers SSR avec Next.js sur un cas concret d'app dynamique, intégrez des tests end-to-end avec React Testing Library, déployez sur Vercel avec CI/CD, repartez avec un portfolio optimisé boostant vos metrics Core Web Vitals.
Target audience
Développeurs React seniors, leads frontend, architectes web en montée en compétences.
Prerequisites
Maîtrise React fonctionnel, hooks useState/useEffect, JavaScript ES6+, Node.js.
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