Advanced Ruby Training - Optimize your Rails Apps in 4 Days

Specialist course · Minimum level required

$6,300

  • 4 days
  • Onsite
  • 10 people max.
Ref: RPI105
10 people max.
$6,300
In-company rate: from $10,710 for the whole teamExpertise rate: $1,575 per day, reflecting the difficulty level
On-site and certification exam on quote
4 days
Onsite

Don't let this gap widen

Why this program matters

  • Without advanced Ruby training, your Rails apps risk chronic memory leaks costing up to 25% CPU resources in production and 10k€/year in unnecessary infrastructure.

  • Undetected bugs via TDD tests impact 35% of users, generating 15% churn and negative App Store reviews.

  • Your legacy code slows iterations, tripling feature delivery times, while competitors scale 5x faster with optimized metaprogramming.

  • Are you losing freelance opportunities at 80€/h?

  • Invest now to avoid these costly pitfalls and dominate the Ruby market.

Célian Lebacle, Learni trainer · Web & mobile expert
Célian Lebacle

Learni trainer · Web & mobile expert

73%productivity gap
×3cost of inaction
Flag of the United StatesBuilt for US teams
Payment by wire transferEnhanced confidentialityPerfect for companies with 50 to 500 employeesScheduling to fit any time zone

Trusted by — schools, companies and industrial groups

41,119 programs · 25 countries

  • Aptar
  • ArcelorMittal
  • Equans
  • EDF
  • Ubisoft
  • Microsoft
  • Atos

Every program built with a dedicated engineer

  • OpenAI
  • Anthropic
  • Mistral AI
  • NVIDIA
  • Google
  • Amazon Web Services
  • Microsoft Dynamics 365
  • Salesforce
  • ServiceNow
  • SAP
  • Oracle
  • Cisco
  • Fortinet
  • Palo Alto Networks
  • Aruba
  • VMware
  • Red Hat
  • Databricks
  • Snowflake
  • OVHcloud
  • Notion
  • AMD
  • Apple

Companies: Aptar, ArcelorMittal, Equans, EDF, Ubisoft, Microsoft and Atos.

Advanced Ruby training objectives

  • Master Ruby metaprogramming for dynamic code
  • Optimize performance with advanced Gems like Puma and Sidekiq
  • Develop scalable RESTful APIs under Rails 7
  • Implement advanced TDD tests with RSpec and Capybara
  • Manage secure deployments on Heroku and Docker
  • Analyze and refactor legacy code for optimal maintainability

Program

Advanced Ruby curriculum: 4 modules over 4 days

Module 1 : Ruby Metaprogramming: Dynamic Methods and DSLs (Ruby 3.x, IRB)

Dive into the secrets of advanced Ruby by creating your own DSLs with define_method and metaclass, test live on IRB for concrete exercises on dynamic inheritance, build a personal mini-framework by refactoring existing code, leave with snippets ready to integrate into your Rails projects to boost productivity from tomorrow.

Module 2 : Advanced Gems and Optimization: Sidekiq, Puma (bundler, rubocop)

Install and configure powerful Gems like Sidekiq for asynchronous jobs and Puma for multi-threading, perform practical exercises on memory optimization with heap dumps, integrate Rubocop for clean code, develop a scalable worker in real conditions, obtain tested deliverables to accelerate your apps by 40% in production.

Module 3 : Advanced Rails: APIs and Security (Rails 7, Devise, Pundit)

Build robust JSON APIs with Rails 7 by implementing GraphQL via Graphene, secure with Devise and Pundit on enterprise cases, code advanced controllers with concerns, test real attack scenarios, produce a complete deployable API prototype, transform your skills to deliver enterprise-ready backends in record time.

Module 4 : Testing, Performance, and Deployment: RSpec, Docker (New Relic, Capistrano)

Master end-to-end tests with RSpec and Capybara on complex apps, profile performance via New Relic to track bottlenecks, containerize with Docker and deploy via Capistrano to staging, perform a complete audit of a legacy project, leave with a portfolio of certified deliverables ready to scale deployments without downtime.

How Advanced Ruby skills are assessed

  • Daily interactive quizzes, final project on Rails API, Qualiopi certification

How the Advanced Ruby course is taught

  • 80% hands-on pedagogy, pair workshops, individualized feedback

Advanced Ruby training: access and practical arrangements

The Advanced Ruby Training - Optimize your Rails Apps in 4 Days 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.

Equipment required

For the smooth delivery of the Advanced Ruby Training - Optimize your Rails Apps in 4 Days program, the following equipment is required:

  • Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, projector or interactive touch screen (for remote sessions)
  • Training environments installed on workstations or accessible online
  • Course materials, hands-on exercises and complementary resources
  • Post-training access to materials and educational resources

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.

* contact us for remote delivery feasibility** ratio varies depending on the program

Skills assessment methods

Assessment of skills acquired during the Advanced Ruby Training - Optimize your Rails Apps in 4 Days program is performed through:

  • During training: case studies, hands-on labs and professional scenarios
  • End of training: self-assessment questionnaire and skills evaluation by the trainer
  • After training: completion certificate detailing acquired skills

Program accessibility

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.

Enrollment terms and lead times

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.

The Learni story

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.

Our method

How Learni guarantees the quality of your Advanced Ruby training

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.

Step 1

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.
Step 2

You meet the trainer beforehand

30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.

  • Live briefing on goals and team context.
  • Veto right — we swap the trainer for free if needed.
Step 3

Content tailored to your context

No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.

  • Hands-on cases drawn from your stack and projects.
  • Program co-written then validated by your team.
Step 4

Continuous quality follow-up

Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.

  • NPS, knowledge quizzes and skills self-assessment.
  • Satisfaction guarantee: fully satisfied or free rework.

A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.

A child walking to school with a backpack
Our social commitment

A school kit donated to a child for every training booked

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.

  • Backpack, notebooks and essential supplies
  • Distributed through our partner charities
  • Included, at no extra cost to you
Enroll and offer a kit
FAQ

Advanced Ruby: frequently asked questions

Which tools are used in Advanced Ruby Training training?+
Hands-on work runs on ruby 3.x, IRB, bundler, rubocop, rails 7 and devise. Those tools come from the Advanced Ruby Training program itself, delivered on site over 4 days, so participants practise on the stack they will use at work.
What can participants do after Advanced Ruby Training training?+
They can master Ruby metaprogramming for dynamic code, optimize performance with advanced Gems like Puma and Sidekiq and develop scalable RESTful APIs under Rails 7. Those are the stated objectives of the Advanced Ruby Training program at Advanced level, checked by the end-of-session assessment.
What does the Advanced Ruby Training program cover, day by day?+
Day 1: Ruby Metaprogramming: Dynamic Methods and DSLs (Ruby 3.x, IRB). Day 2: Advanced Gems and Optimization: Sidekiq, Puma (bundler, rubocop). Day 3: Advanced Rails: APIs and Security (Rails 7, Devise, Pundit). Day 4: Testing, Performance, and Deployment: RSpec, Docker (New Relic, Capistrano). The Advanced Ruby Training program runs over 4 days, delivered on site.
How is Advanced Ruby Training training assessed?+
Assessment relies on daily interactive quizzes, final project on Rails API, Qualiopi certification. Learni issues a completion certificate together with the individual assessment report at the end of the Advanced Ruby Training program, which an L&D team can file as evidence.
How much does Advanced Ruby Training training cost per participant?+
Advanced Ruby Training training costs $6,300 per participant. For an in-company team, the flat rate starts at $10,710 for the whole group, up to 8 people. The detailed quote, sent within one business day, adjusts the amount to the format and how far the syllabus is tailored to your team.
How long does Advanced Ruby Training training take?+
4 days, available live online (US time zones) or on-site at your offices. Half-day tracks spread over several weeks are possible so the team stays operational.
Who pays for Advanced Ruby Training training?+
Most US teams pay directly through their company L&D or training budget. Learni invoices in US dollars and accepts bank transfer (ACH/wire) or card, with volume pricing for teams. A purchase order is welcome.
What do participants need to know before Advanced Ruby Training training?+
Solid mastery of Ruby (OOP syntax, lambdas, modules), minimum 2 years' experience on real Rails projects.
Is a certificate issued after Advanced Ruby Training training?+
Yes. A Learni completion certificate is issued, along with the individual evaluation report. Learni is a certified training provider and prepares for third-party certifications, but does not award them itself.
Does Learni provide the equipment for Advanced Ruby Training training?+
No. A computer and a stable internet connection are required for each participant. Learni provides the learning platform, the trainer and all course materials.
Your professional training, anywhere

Let's build your Advanced Ruby learning path.

30 minutes with a learning advisor. No commitment. No sales pitch dressed up as a demo.

Reply within 24h · Vetted experts · USD invoicing · W-9 available
On-site & remote

Advanced Ruby training in your city

Available on-site and remotely. Pick your city to see the local training center.

Share in 2 clicks