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 null management with the Elvis operator and safe calls, practice refactoring Java code to secure Kotlin, complete exercises on smart casts to avoid crashes, produce infallible functions ready for your Android apps, and boost productivity from day one.
Explore lambdas with receiver, function chains like map and filter, apply them to real datasets for sorting and transforming data, code interactive examples with live coding, generate reusable utilities that speed up daily development, and experience the power of functional programming.
Start coroutines with launch and async, manage suspensions for non-blocking APIs, implement flows for real-time data streams, test on mobile use cases like network requests, produce a production-ready coroutine module, and master asynchronous without hellish callbacks.
Create extensions to enrich standard classes, build fluent DSLs for HTML or JSON, apply them to complex configs, practice in pairs on mini-projects, deliver copy-paste snippets for your teams, and transform verbose scripts into poetic, maintainable code.
Assemble everything into a fullstack multiplatform project with KMM, integrate Room and Retrofit in Kotlin, deploy a complete MVVM app, debug in groups with coach feedback, finalize a certified portfolio, and leave with skills that multiply your devops and mobile opportunities.
The Intermediate Kotlin Training - Develop High-Performance Apps 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 Intermediate Kotlin Training - Develop High-Performance Apps 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 Intermediate Kotlin Training - Develop High-Performance Apps 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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Java & JVM ecosystemIndustry-certifiedAvailable on-site and remotely. Pick your city to see the local training center.
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