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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.
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30 free minutes with a training advisor — no commitment.
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Artificial Intelligence training in Cardiff in May 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.
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No-Code / Low-Code training in Leeds in November 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
Don't let this gap widen
Without these expert skills, your React apps risk loading times over 3 seconds, increasing bounce rate by 40% according to Google.
Unnecessary re-renders eat up 25% of CPU performance, generating costly bugs in production (estimated loss 15k€/year per dev).
Lacking SSR exposes you to SEO penalties, halving organic traffic.
Without advanced testing, 30% of deployments fail, hindering scalability.
Invest now to boost ROI and user satisfaction.
The Training React Expert - Optimize Performance and Advanced Architectures 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 Training React Expert - Optimize Performance and Advanced Architectures 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 Training React Expert - Optimize Performance and Advanced Architectures 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.
Dive into custom hooks by creating dynamic reusable components, profile your apps with React DevTools to identify bottlenecks, optimize renders using useMemo and useCallback on real e-commerce cases, complete practical exercises on interactive dashboards, produce an optimized deliverable reducing re-renders by 70%.
Set up Next.js for SSR and SSG on a real project, integrate Recoil for lightweight and powerful state management, write end-to-end tests with Jest and React Testing Library on complex forms, explore micro-frontends for enterprise apps, finish with automated deployment on Vercel, take away a scalable code portfolio ready for use.
Target audience
Senior React developers, lead frontend developers, web application architects seeking to upskill in advanced optimizations.
Prerequisites
Mastery of React (components, basic hooks), JavaScript ES6+, Redux or Context API, minimum 2 years experience in React development.
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