Rigorous trainer selection
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
- Triple validation: technical, pedagogical, sectoral.
- Minimum rating 4.8/5 over the last 12 sessions.
Describe your need, get a tailored program and a pre-filled quote in 3 min. A 100% free call with an advisor.

To fight inequalities in access to education, Learni donates a complete school kit to a child in need for every training booked. You build your skills, a child heads back to school.
Founded by engineers and learning experts, Learni's mission is to make high-impact tech training accessible to teams everywhere. We work remotely with organizations across the US and Canada, in your time zone, to help teams upskill fast.
Don't let this gap widen
Without SolidJS, your React or Vue apps risk unnecessary re-renders, inflating bundles by 30% and slowing mobile users by 2 seconds per interaction, according to Web Vitals benchmarks.
Lose 20% productivity in endless debugging, miss high-salary frontend jobs (average +15k€/year), and let competitors adopt this fine-grained tech that boosts Core Web Vitals by 40%.
Avoid costly rewrites: train for fluid UIs tomorrow.
Install SolidJS via Vite, create your first project, dive into the unique JSX syntax, build simple components with props, complete interactive exercises on conditional renders and lists, generate a basic portfolio by the end of the day, while comparing with React to see immediate performance gains.
Explore signals for granular reactivity, manage local state with reactive stores, implement effects for automatic updates, practice on concrete cases like an advanced counter or dynamic form, test updates without superfluous re-renders, produce an interactive dashboard that motivates action.
Integrate routing with Solid Router, optimize performance via memos and lazy loading, develop a complete e-commerce app in a team, deploy on Vercel or Netlify, analyze speed metrics, leave with a portfolio project ready to impress recruiters and clients.
The Training SolidJS - Create Ultra-Performant Reactive UIs program is delivered onsite or remote (blended-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.
The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.
For the smooth delivery of the Training SolidJS - Create Ultra-Performant Reactive UIs program, the following equipment is required:
For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.
Assessment of skills acquired during the Training SolidJS - Create Ultra-Performant Reactive UIs program is performed through:
Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.
Registration is possible up to 48 business hours before the start of training. All our programs are built for corporate L&D budgets and delivered onsite or remotely.
Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.
No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.
Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.
A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.
JavaScript DevelopmentIndustry-certified
Mobile DevelopmentIndustry-certified
JavaScript DevelopmentIndustry-certified
Web DevelopmentIndustry-certified
JavaScript DevelopmentIndustry-certified
JavaScript DevelopmentIndustry-certified
JavaScript DevelopmentIndustry-certified
JavaScript DevelopmentIndustry-certified
JavaScript DevelopmentIndustry-certified
JavaScript DevelopmentIndustry-certified
Web DevelopmentIndustry-certified
Web DevelopmentIndustry-certified
Web DevelopmentIndustry-certified
Web DevelopmentIndustry-certified
Web DevelopmentIndustry-certified
Web DevelopmentIndustry-certified
Frameworks & LibrariesIndustry-certified
Frameworks & LibrariesIndustry-certified
Frameworks & LibrariesIndustry-certified
Frameworks & LibrariesIndustry-certified
Frameworks & LibrariesIndustry-certified
Frameworks & LibrariesIndustry-certified
Office ProductivityIndustry-certified
Office ProductivityIndustry-certified
Office ProductivityIndustry-certified
Office ProductivityIndustry-certified
Office ProductivityIndustry-certified
Office ProductivityIndustry-certifiedAvailable on-site and remotely. Pick your city to see the local training center.
30 minutes with a learning advisor. No commitment. No sales pitch dressed up as a demo.