Kotlin Programming for Beginners | CodeSignal Learn

Skip to main content

beginner

Kotlin Programming for Beginners

Software Engineering

5 courses

154 practices

10 hours

Begin your interstellar journey as a Computer Programmer with a strong foundation in Kotlin, one of the world’s most popular languages. This beginner-friendly path covers Kotlin syntax and key programming concepts, preparing you to dive deeper into the vast world of coding.

Trusted by learners working at top companies

Turn screen time into skills time

Practice anytime, anywhere with our mobile app.

Sign up

Join the 1M+ learners on CodeSignal

Be a part of our community of 1M+ users who develop and demonstrate their skills on CodeSignal

4.57

1,105 learners

Earn a shareable

Certificate of Achievement

Verified skills you'll gain

DEVELOPING

Computer Science Fundamentals

DEVELOPING

General Programming and Algorithms

Tools you'll use

Kotlin

Course 1

Getting Started with Kotlin

8 lessons

39 practices

Set sail on your interstellar journey as a Computer Programmer with a robust foundation in one of the world's most widely used languages - Kotlin. This course introduces Kotlin syntax, crafting simple scripts, and addresses mathematical problems for beginners.

Course 2

Learning Simple Data Structures in Kotlin

5 lessons

24 practices

Explore Kotlin's native data structures like arrays, lists, and maps. This course strengthens your skills to handle varying data sizes in coding. You'll get a deeper understanding of Kotlin while continuing to strengthen your general coding skills.

Course 3

Iterations and Loops in Kotlin

5 lessons

25 practices

Explore Kotlin's loop mechanisms to streamline repetitive operations in your code. Understand the syntax and practical applications of 'for', 'while', and 'do-while' loops. Master controlling program flow effectively with these looping constructs for optimal code efficiency.

Course 4

Writing Functions using Kotlin

7 lessons

34 practices

Dive into functions in Kotlin to enhance code modularity and reusability. This course guides you through the essentials of defining functions, utilizing parameters and return types, and the nuances of function overloading. Expand your Kotlin toolkit to write concise and maintainable functions.

Course 5

Introduction to Object-Oriented Programming in Kotlin

6 lessons

32 practices

This course will guide you from basics of coding to a good grasp of Object-Oriented Programming (OOP) in Kotlin. You will gain insights into the structure and design of Kotlin classes, understand how to create and manipulate objects, learn how to utilize inheritance and encapsulation, and more. Suitable for Kotlin beginners with basic knowledge of computer programming.

Scan to download

Other paths you may like

Fundamental Coding Interview Prep with Python

Introduction to Programming with Python

Mastering Algorithms and Data Structures in Python

Advanced Coding Interview Preparation with Python

Full-Stack Engineering with JavaScript

Prompt Engineering for Everyone

Journey into Data Science with Python

Java Programming for Beginners

Company

About Careers Leadership Talent Science Newsroom

Collections

Generative AI Business & Leadership Interview Prep AI & Machine Learning Learn to Code Data Science & Engineering

Platform

Platform Overview Skills Assessments Live Tech Interviews AI Interviewer AI Role-Play AI Tutoring with Cosmo

Roles

Talent Acquisition Engineering Leaders Sales Leaders CS & Support Leaders IO Psychologists Individuals

Resources

Resource Library Blog Customer Stories Interview Prep API Docs

Support

Copyright © 2026 CodeSignal

Privacy Terms Compliance & Trust

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

+9

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

+8

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

name

Francisco Aguilar Meléndez

Data Scientist

+11