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.
Learning objectives
- Master Resilience4j to architect resilient microservices in enterprise environments
- Implement advanced circuit breakers and professional fallback strategies
- Develop retry mechanisms and rate limiting adapted to critical workloads
- Configure bulkheads and time limiters to optimize performance
- Integrate Resilience4j with Spring Boot and monitoring for certified deployments
- Design fault-tolerant systems with metrics and observability
- Acquire certified resilience skills for professional projects
The Learni story
Founded by passionate learning and innovation experts, Learni's mission is to make professional training accessible to everyone, anywhere in the world. Our team operates in major hubs — London, New York, Boston — and internationally, to support talents and organizations in upskilling.
Don't let this gap widen
Why this program matters
Without this upskilling, your team accumulates a technological gap that translates directly into productivity loss.
Organizations that don't train their talents on key topics see their competitiveness drop.
Every quarter without training is a gap widening with competitors who invest.
The cost of inaction quickly exceeds that of well-targeted training.
Program
Module 1Advanced Resilience4j Fundamentals: configuration and Spring Boot integration (tools, annotations, metrics)
Dive into advanced installation of Resilience4j in an existing Spring Boot project, configure essential modules via annotations and YAML files, explore decorators for seamless integration, complete practical exercises on a simulated microservice with load spikes, generate initial metrics reports and a custom decorator to validate professional resilience skills from day one.
Module 2Resilience4j Circuit Breaker: advanced strategies and fallbacks (thresholds, states, chaos tests)
Deepen circuit breaker with dynamic thresholds and half-open states, implement robust fallbacks via lambda suppliers, test in chaos engineering environments with tools like Chaos Monkey, apply to real enterprise cases like e-commerce under intense traffic, generate Grafana dashboards to visualize transitions, and optimize configurations for maximum fault tolerance, enhancing service reliability.
Module 3Resilience4j Retry and Rate Limiter: recurrent failure management (backoff, quotas, sliding windows)
Master retry policies with exponential backoff and jitter, combine with semaphore-based rate limiter for precise quotas, integrate into critical REST APIs, simulate failing database scenarios via practical exercises, adjust parameters in real-time via Actuator, produce a reusable module tested under load with JMeter, demonstrating professional resilience that avoids costly failure loops in production.
Module 4Resilience4j Bulkhead and TimeLimiter: isolation and timeouts (thread pools, scheduling, monitoring)
Configure thread-based and semaphore bulkheads to isolate resources, apply time limiters with custom schedulers for granular timeouts, integrate with asynchronous Reactor flows, perform saturation tests on interconnected microservices, monitor via Micrometer and Prometheus, develop an isolated component for slow third-party services, delivering a scalable architecture that protects applications from failing dependencies and boosts overall performance.
Module 5Advanced Integration and Resilience4j Project: observability, best practices, deployment (Micrometer, Grafana, CI/CD)
Synthesize all modules into a complete red thread microservices project, enable observability with Jaeger tracing and exported metrics, apply 2026 best practices like conditional annotations and runtime tuning, deploy to Kubernetes with Helm charts, evaluate via advanced chaos tests, finalize with code review and certifying documentation, ensuring enterprise-ready skills and proven production resilience.
Evaluation method
- Technical MCQ on advanced Resilience4j configurations
- Practical evaluation through implementation of resilience patterns
- Defense of the resilient microservice project with metrics
Learning method
- Training led by Java microservices expert instructor
- Practical exercises on real enterprise resilience cases
- Progressive Resilience4j red thread project over 5 days
- Detailed course materials and open-source resources
Methods, materials and delivery
The Training Resilience4j - High-Performance Java Microservices Resilience program is delivered onsite or remote (blended-learning, e-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 Training Resilience4j - High-Performance Java Microservices Resilience 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 Training Resilience4j - High-Performance Java Microservices Resilience 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
Learni programs are available inter-company and intra-company, onsite or remote. Enrollments are possible up to 48 business hours before the program starts. Our programs are eligible for corporate funding paths. Contact us to discuss your training project and funding options.
Verified reviews
What our learners
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
Our method
Training quality, guaranteed at every step
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.
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.
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.
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.
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