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.
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Dive into refactoring an existing API into custom Fastify plugins, configure lifecycle hooks for logging and errors, perform exercises on dependency injection, produce a testable modular prototype, while measuring maintainability gains with tools like Pino for structured logs.
Build complex JSON Schema for input/output validation, integrate Ajv with Fastify to reject malicious payloads, practice on real e-commerce API cases, generate optimized serialized responses, test robustness against SQL/NoSQL injections via interactive exercises.
Optimize an API for 10x more throughput by implementing HTTP/2 streaming, enable Redis for distributed caching, configure Brotli/Gzip compression, analyze bottlenecks with clinic.js, develop a live benchmark comparing to Express, produce a performance report with 50% measured gains.
Write advanced test suites with Tap and Fastify inject, mock external services for isolation, achieve 90% coverage on a complete API, debug live with ndb, integrate with GitHub Actions for CI/CD, validate via a group project simulating a critical production bug.
Containerize your Fastify API with multi-stage Docker, deploy PM2 clusters for high availability, implement JWT/OAuth2 and rate limiting, secure Kubernetes Helm charts, simulate auto-scaling on AWS/Heroku, deliver a production-ready CI/CD pipeline with Prometheus monitoring.
The Advanced Fastify Training - Ultra-Fast 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.
Equipment required
For the smooth delivery of the Advanced Fastify Training - Ultra-Fast 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.
Skills assessment methods
Assessment of skills acquired during the Advanced Fastify Training - Ultra-Fast and Scalable APIs program is performed through:
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.
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.
Rigorous trainer selection
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
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.
Content tailored to your context
No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.
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.
A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.

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.
30 minutes with a learning advisor. No commitment. No sales pitch dressed up as a demo.
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Backend & APIsIndustry-certified
Backend & APIsIndustry-certified
Databases & SQLIndustry-certified
Databases & SQLIndustry-certified
Databases & SQLIndustry-certified
JavaScript & TypeScriptIndustry-certified
JavaScript & TypeScriptIndustry-certified
JavaScript & TypeScriptIndustry-certified
Programming LanguagesIndustry-certified
Programming LanguagesIndustry-certified
Programming LanguagesIndustry-certifiedAvailable on-site and remotely. Pick your city to see the local training center.
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