An experienced trainer who thought on many international companies including IBM, Allegro, Pega, HPE. The author of the books Effective Kotlin and Android Development with Kotlin.

Author of the Effective Kotlin and Kotlin Coroutines, speaker, experienced developer. 

During this workshop, you’ll understand how TypeScript mechanics work. You will also learn basic and complex data structures, as well as ways to make typing applications written in JavaScript easier. Thanks to this course, your code will not only be more readable but also less prone to errors.

TypeScript

Workshop that covers TypeScript topics and explains the mechanics of its operation, from scratch to advanced structures.

Learn how to write the best tests, according to standards aligned with ISTQB.

Software Testing aligned with ISTQB

MockK is a powerful library. It uses the best of Kotlin to let us define mocks and verification blocks clearly and expressively. It also allows us mock elements typical to Kotlin, like top-level functions and properties, object declarations, or suspending functions. In this workshop, you will learn how to use these capabilities, to use MockK effectively and to improve testing quality in real-life projects.

MockK

A 3-day workshop covering the whole material needed to create mobile and web applications for Android using Android Studio, at an intermediate level. You will learn how to use SQLite to communicate with SQL data sources, how to test your application and publish it to the Google Play Store.

Android application development

A workshop for intermediate object-oriented language programmers, that covers the material needed for creating applications on the Android operating system.

During this single-day workshop, we will learn about the tools and practices for testing in Kotlin from a practitioner who ate his teeth on testing Kotlin and testing in Kotlin. 

Testing in Kotlin

Practical workshop dedicated to testing in Kotlin, using testing libraries and testing coroutines. 

How to use machine learning to improve test automation, including core concepts and algorithms.

Machine Learning Adaptation in Software Testing

How to use machine learning to improve test automation. 

The essential workshop teaching how to start and set up successful test automation. 

Test Automation (API and UI)

An angular workshop tailored fit for a group. The whole material takes 3 days but can be split into 1-day or 2-day workshops depending on the group's need. 

Angular

Practical Angular, from basics to advanced usage

A workshop dedicated to the functional programming features in Kotlin, perfect for developers with some experience in the language, to leverage their skills and learn how to use higher-order functions and collection processing effectively. 

Functional Kotlin

Leverage your skills and improve your productivity with functional programming features in Kotlin.

In this 3-days workshop you will learn how to build stable and scalable .NET 5 MVC applications. The workshop covers basic and advanced .NET 5 MVC features, best practices and real-world examples.

.NET Deep Dive

A workshop that covers the material needed to build scalable applications .NET MVC.

Build scalable applications .NET MVC

This hands-on workshop teaches how to retain clean code by refactoring in the smallest possible steps so it becomes everyday practice. It will enable you to continue with much more complex refactorings towards design patterns where applicable.

This way you learn to tackle emergent design from a long term point of view. You will possess skills to make architectures more extendable and readable by applying patterns when you need them without prior over-engineering.

Attendees will gain:
* technical skills based on self live coding;
* awareness of their attitude that is always reflected in outcome code quality.

Attendees will understand:
* how the organization of work within the team/company influences final code quality;
* how patterns solve the problems at the current state of design but without continuous refactoring introduces next issues if the design is followed with copy-paste thoughts only.

Attendees will experience:
* how design patterns might enable but also impede further development for new business cases;
* a threshold of complexity behind which usage of design patterns pays off;
* by trying out ideas to experiment with adjustments to the way their development process is organized so they can improve the quality of the final product.


## More about training

Refactoring is very well known in theory. It looks like everyone has heard about it. But do we know how to approach it? Isn’t it often a theory followed by an idea to re-write a given part of code because we are afraid to touch the given code any longer?
During the workshop, we go carefully through the concept of the Pyramid of Refactoring that enables you to keep your code clean through continuous refactoring and turn the code architecture into design patterns when it brings benefits.

* Simplifying the logic of algorithms
* Extracting smaller methods
* Extracting smaller classes
* Notifying emerging design patterns
* Cleaning up the architecture

The training is mainly focused on working with code using automated refactoring features that are built into IntelliJ. The source code is based on the Java language. The trainer does all the refactorings live in small steps which allows the attendees to follow it with the same
changes on their laptops. The remaining 25% of the training is dedicated to the motivation part, how to make refactoring a daily habit in order to keep technical debt under control.

Please note also that this is a training mainly about refactoring – not necessary about which the design is the best. Different teams might prefer different architectures whereas the goal of this training is to show how easy/fast we can change the low-level design and keep the design emergent according to our architectural decisions and needs. Fortunately, the need to use some patterns is not visible at the beginning of development. This way we can avoid over-engineering and make use of patterns only when they decrease code complexity.
We do our best to keep the code simple but when the codebase is growing we begin to regret a given design pattern is missing as part of the solution.
... and this is the time to apply the refactoring to patterns, for example, to replace conditional statements with polymorphism. This way we tackle code complexity with Strategy, State, Abstract Factory or any other pattern. This approach allows us to avoid over-engineering from the beginning and refactor our codebase just in time when it brings value, decreases complexity, and saves time and money.


Effective Refactoring to Clean Code & Patterns

Learn to tackle technical debt on a daily basis. Feel the thrill of refactoring and make it a habit to maintain code readability and extendibility continuously.

Hands On Workshop

A 3-day course that covers the whole material needed for efficient and idiomatic Kotlin development in Android. It starts with basics and dives deep down into advanced Kotlin features and best practices.

Kotlin for Android Developers

Kotlin workshop that covers the whole material needed for efficient and idiomatic Kotlin development in Android.

This workshop teaches how to use modern Kotlin tools and libraties for effective testing. It also covers the essential testing philosophy and best practices. 

How to use Kotlin to write effective tests, using modern practices and technologies.

Handling complex objects in relational databases is tough. During this workshop you will learn how to use Entity Framework Core to store complicated models without polluting your domain model.

Entity Framework Core

A workshop showing how to save complex objects to a relational database with EF Core.

Masterclass

During this 2 or 3-day workshop for experienced Kotlin developers, we'll dive deeply into Kotlin's best practices and idiomatic Kotlin use. We'll also talk about more general concepts like readability, abstraction design or contract setting. 

The workshop is based on the Effective Kotlin book. The content is well thought out and consulted with many Kotlin developers.

Effective Kotlin

Kotlin workshop directed to experienced Kotlin developers, focused on the best practices.

BEST PRACTICES

The workshop concentrated on delivering as much of what is important in Angular as possible in a single day. 

Angular Essentials

The most important parts of Angular in one day

The goal of this workshop is to enable existing Java developers to start writing code in Kotlin JVM. Training consists of exercises, live coding and lectures.

Kotlin for Java Developers

A 2 day Kotlin workshop that enables existing Java developers to start coding in Kotlin (JVM). 

The workshop gives you a statistical, technical, and organizational toolbox for implementing A/B testing in a medium to large organization. It is a lecture mixed with discussions, in the context of specific client cases.
We run this workshop only for businesses, not individuals. 

Perfect for:
* Data scientist,
* Data analysts,
* Technical managers.


A/B testing for e-business

Effective testing and verification of business hypotheses.

Make effective A/B testing to verify business hypothesis for your company.

The workshop is intended for people who want to start their adventure with Machine Learning and those who want to organize their knowledge and focus their further development in this area.

Machine Learning in Python

Learn what Machine Learning is, and how to use it in practice.

A 3-day training concentrated on Kotlin JVM. Suitable both for writing pure Kotlin applications, as well as for using Kotlin in backend frameworks like Spring or Ktor. The workshop covers Kotlin exercises, best practices for backend, and core Kotlin features.

Kotlin for Developers

Kotlin workshop that covers the whole material needed for efficient and idiomatic Kotlin development.

This is a 2-day workshop for experienced developers, that covers asynchronous programming in Kotlin using coroutines. It covers both build-in support for coroutines and dives deep into kotlinx.coroutines library.

Kotlin Coroutines

Workshop covering asynchronous programming in Kotlin using coroutines.

During this single-day workshop, we will learn everything you need to know about using Flow, from essentials to advanced topics. We will learn to use it in real-life use cases.

Kotlin Flow

Practical training concentrated on Kotlin Coroutines Flow, using it in real-life use-cases and testing it. 

The two-day course focused on advanced practical skills like generics, reflection, annotation processing, and KSP, practiced on implementing projects like custom mocking library, object serialization, dependency injection. 

Advanced Kotlin

To help Kotlin developers become great developers by leveraging advanced features of the language.

We teach programming

with focus on the best practices

What training do you need?

Kotlin Coroutines

Advanced Kotlin

Testing in Kotlin

Kotlin for Developers

Kotlin for Android Developers

Effective Kotlin

Invest in your skills!

Why choose us?

Marcin Moskała

One of the first certified Kotlin training worldwide

Trusted by global partners