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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 Cardiff in May 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
Professional Training training in New York in September 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
Professional Training training in Memphis in October 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
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 this Intermediate Rails training, 70% of developers lose 15 hours per week on poorly managed ActiveRecord bugs, leading to non-scalable apps and 3x maintenance costs.
Imagine deploying without solid security: data leaks affecting 40% of SMEs, GDPR fines up to 4% of revenue.
Are you missing freelance opportunities at €80/hour due to unoptimized APIs?
20% downtimes in production ruin reputations.
Invest 21 hours to avoid these pitfalls, multiply your productivity x2 from the next day.
The Intermediate Rails Training - Develop Scalable Web Apps 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 Intermediate Rails Training - Develop Scalable Web Apps 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 Intermediate Rails Training - Develop Scalable Web Apps 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 Rails architecture by refactoring an existing app, configure complex relationships with ActiveRecord, migrate databases through practical exercises, optimize SQL queries to accelerate performance, test your models with RSpec, leave with a structured project and impeccable relational schemas, ready to scale.
Build robust APIs by integrating Devise for authentication, apply Pundit for fine-grained authorization policies, generate JWT tokens through exercises on real e-commerce cases, secure your endpoints against common attacks, debug with advanced logs, produce a deployable functional API prototype, boost your security expertise.
Deploy your Rails app on Heroku and Docker by containerizing through hands-on sessions, integrate Sidekiq for asynchronous jobs, enable Redis caching for ultra-fast responses, monitor with New Relic on concrete high-traffic cases, optimize assets and the database, finalize with a successful live deployment, gain production autonomy.
Target audience
Ruby developers, fullstack developers, technical leads seeking to upskill in Rails.
Prerequisites
Solid knowledge of Ruby, experience with beginner-level Rails (creating simple CRUD apps), mastery of Git.
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