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
- Develop scalable microservices architectures with Spring Boot
- Optimize JVM performance for high-traffic applications
- Implement reactive programming with Project Reactor
- Secure enterprise applications with OAuth2 and JWT
- Integrate CI/CD and Docker/Kubernetes containers
- Master advanced patterns for robust code
- Complete a fully deployable production project
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 expert Java training, your applications risk 40% more frequent downtimes due to poorly tuned JVM, leading to estimated client losses of 100k€ annually for an SME.
Competitors adopting Java 21 and microservices are ahead, with 30% better performance.
Your outdated code exposes you to security vulnerabilities, like the 25% of missed OAuth attacks in 2023.
Miss lead dev promotions, stagnating against reactive juniors.
Invest 35 hours to avoid 50k€ in production losses and secure your elite expertise.
Program
Module 1Advanced Java Architectures: Microservices and Spring Boot (design patterns, tools)
Dive into refactoring a monolithic app to microservices, use Spring Boot 3 to create resilient services, implement patterns like Circuit Breaker with Resilience4j, complete practical exercises on scalable REST APIs, produce a functional deployable prototype that boosts your expertise from day one.
Module 2Java Performance Optimization: JVM Tuning and Profiling (VisualVM, JFR, methods)
Analyze bottlenecks with VisualVM and Java Flight Recorder, tune garbage collectors to reduce latency by 50%, code exercises on Java 21 Virtual Threads, profile real-world e-commerce app cases, generate actionable optimization reports that transform your skills into immediate competitive advantages.
Module 3Reactive Java Programming: Reactor and WebFlux (asynchronous fluxes, backpressure)
Build non-blocking reactive pipelines with Project Reactor, migrate Spring MVC apps to WebFlux, manage backpressure on massive fluxes, practice exercises on real-time data streaming, deliver a complete reactive app that accelerates your high-throughput projects and positions you as a modern expert.
Module 4Java Security and DevOps: OAuth2, JWT, Docker (CI/CD integration, Kubernetes)
Secure APIs with Spring Security OAuth2 and JWT, containerize apps with Docker, deploy on Kubernetes with Helm, automate pipelines with GitHub Actions/Jenkins, handle simulated intrusion cases, produce secure zero-downtime deployments that safeguard your career starting today.
Module 5Java Expert Capstone Project: Production Deployment (tool synthesis, deliverables)
Integrate all skills into a scalable full-stack e-commerce project, optimize, secure, deploy in a Kubernetes cluster, present to peers with expert feedback, leave with source code, final report, and certificate, ready to impact your teams and boost your employability instantly.
Evaluation method
- Daily interactive quizzes
- Final project graded on expert criteria
- 360° evaluation by trainer and peers
Learning method
- 80% hands-on with real-world cases
- 20% applied theory
- Individualized exercises and collaborative challenges
Methods, materials and delivery
The Java Expert Training - Master Scalable High-Performance Applications 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 Java Expert Training - Master Scalable High-Performance Applications 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 Java Expert Training - Master Scalable High-Performance Applications 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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