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 advanced REST API mastery, 70% of APIs remain vulnerable to breaches (source OWASP), exposing customer data to costly leaks averaging 4M€ (IBM).
Degraded performance hampers 40% of web apps, generating revenue losses up to 25%.
Developing without scaling?
Cap growth at 10k users.
Obsolete architectures lead to forced refactoring, +200h lost.
Invest 35h to avoid these pitfalls, secure your revenue and reputation today.
Dive into designing advanced REST APIs, model resources with UML, apply HATEOAS for hypermedia, version endpoints via URL or headers, complete exercises on real e-commerce cases, produce implementation-ready deliverable schemas, everything to build robust APIs that evolve without breaking clients.
Code complex endpoints with Express or Spring Boot, integrate middlewares for logging and validation, handle HTTP 4xx/5xx errors with structured responses, simulate business flows via hands-on workshops, generate functional source code, test live for immediate mastery of professional REST patterns.
Strengthen your APIs against threats, implement OAuth2 flows with Keycloak, sign JWT tokens, configure CORS and rate limiting via Redis, analyze OWASP Top 10 attacks on real cases, produce secure configurations ready for deployment, gain peace of mind with impenetrable APIs.
Boost your APIs with Redis caching, offset/limit/cursor pagination, async management via Promises or RxJS, profile bottlenecks with tools like Artillery, optimize NoSQL database queries, run live benchmarks, deliver ultra-responsive APIs scalable to 10k req/s.
Test end-to-end with Postman collections and Newman CI, containerize with Docker Compose, deploy on Kubernetes or Heroku, generate interactive Swagger UI docs, integrate CI/CD with GitHub Actions, finalize personal capstone project, leave with production-ready API portfolio.
The Advanced REST API Training - Secure and Scalable APIs 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 Advanced REST API Training - Secure and Scalable APIs 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 Advanced REST API Training - Secure and Scalable APIs 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.
DevOpsIndustry-certified
Artificial IntelligenceIndustry-certified
Artificial IntelligenceIndustry-certified
Email Marketing & CRMIndustry-certified
Backend DevelopmentIndustry-certified
Backend DevelopmentIndustry-certified
Backend DevelopmentIndustry-certified
Backend DevelopmentIndustry-certified
Backend DevelopmentIndustry-certified
Backend 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
Cloud ComputingIndustry-certified
Cloud ComputingIndustry-certified
Cloud ComputingIndustry-certified
Cloud ComputingIndustry-certified
Cloud ComputingIndustry-certified
Cloud ComputingIndustry-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.